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1. Evidence for the triple-gluon vertex from measurements of the QCD colour factors in Z decay into four jets

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, F. Ariztizabal, P. Comas-Illas, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, Ll.M. Mir, A. Pacheco, A. Pascual, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, L.A.T. Bauerdick, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, T.H. Burnett, H. Drevermann, R.W. Forty, R. Hagelberg, S. Haywood, J. Hilgart, R. Jacobsen, B. Jost, M. Kasemann, J. Knobloch, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, M. Martinez, P. Mato, T. Mattison, H. Meinhard, S. Menary, T. Meyer, A. Minten, A. Miotto, R. Miquel, H.-G. Moser, J. Nash, P. Palazzi, J.A. Perlas, F. Ranjard, G. Redlinger, L. Rolandi, A. Roth, J. Rothberg, T. Ruan, M. Saich, D. Schlatter, M. Schmelling, F. Sefkow, W. Tejessy, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin-Otwinowska, A.M. Bencheikh, R. El Fellous, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, B. Pietrzyk, J. Proriol, E. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J.C. Brient, G. Fouque, A. Gamess, J. Harvey, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, M.I. Parsons, E. Veitch, L. Moneta, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, S. Wasserbaech, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, B. Altoon, O. Boyle, P. Colrain, I. ten Have, J.G. Lynch, W. Maitland, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, D.J. Colling, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, D. Jackson, N.R. Keemer, M. Nuttall, A. Patel, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, K. Kleinknecht, J. Raab, B. Renk, S. Roehn, H.-G. Sander, H. Schmidt, F. Steeg, S.M. Walther, B. Wolf, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, J. Carr, P. Coyle, J. Drinkard, F. Etienne, S. Papalexiou, P. Payre, Z. Qian, D. Rosseau, P. Schwemling, M. Talby, S. Adlung, H. Becker, W. Blum, D. Brown, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, F. Dydak, M. Fernandez-Bosman, M. Frank, A.W. Halley, T. Hansl-Kozanecka, J. Lauber, G. Lütjens, G. Lutz, W. Männer, Y. Pan, R. Richter, H. Rotscheidt, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, U. Stiegler, R. St. Denis, M. Takashima, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, J.-F. Grivaz, Ph. Heusse, P. Janot, D.W. Kim, F. Le Diberder, J. Lefrançois, A.-M. Lutz, M.-H. Schune, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, D. Abbaneo, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, C. Gatto, A. Giassi, M.A. Giorgi, F. Ligabue, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, J.A. Strong, L.R. West, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, W. Kozanecki, M.C. Lemaire, E. Locci, S. Loucatos, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, D. Si Mohand, B. Vallage, R.P. Johnson, A.M. Litke, J. Wear, J.G. Ashman, W. Babbage, C.N. Booth, C. Buttar, R.E. Carney, S. Cartwright, F. Combley, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, E. Barberio, S. Brandt, C. Grupen, L. Mirabito, U. Schäfer, H. Seywerd, G. Ganis, G. Giannini, B. Gobbo, F. Ragusa, L. Bellantoni, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, R.C. Jared, B.W. LeClaire, C. Lishka, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, M. Schmitt, Z.H. Shi, Y.H. Tang, A.M. Walsh, F.V. Weber, M.H. Whitney, null Sau Lan Wu, X. Wu, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, F., Ariztizabal, P., Comas Illa, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, A., Pascual, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, R., Hagelberg, S., Haywood, J., Hilgart, R., Jacobsen, B., Jost, M., Kasemann, J., Knobloch, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, T., Mattison, H., Meinhard, S., Menary, T., Meyer, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, J. A., Perla, F., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, F., Sefkow, W., Tejessy, H., Wachsmuth, W., Wiedenmann, T., Wildish, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, B., Pietrzyk, J., Proriol, E., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, J., Harvey, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, M. I., Parson, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, S., Wasserbaech, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, L., Passalacqua, M., Pepe Altarelli, P., Picchi, B., Altoon, O., Boyle, P., Colrain, I., ten Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, D. J., Colling, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, D., Jackson, N. R., Keemer, M., Nuttall, A., Patel, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, S., Papalexiou, P., Payre, Z., Qian, D., Rosseau, P., Schwemling, M., Talby, S., Adlung, H., Becker, W., Blum, D., Brown, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, M., Frank, A. W., Halley, T., Hansl Kozanecka, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, H., Rotscheidt, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, U., Stiegler, Denis, R. S. t., M., Takashima, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Rizzo, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, L. R., West, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, W., Kozanecki, M. C., Lemaire, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, D., Si Mohand, B., Vallage, R. P., Johnson, A. M., Litke, J., Wear, J. G., Ashman, W., Babbage, C. N., Booth, C., Buttar, R. E., Carney, S., Cartwright, F., Combley, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, C., Grupen, L., Mirabito, U., Schäfer, H., Seywerd, G., Gani, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, R. C., Jared, B. W., Leclaire, C., Lishka, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, M., Schmitt, Z. H., Shi, Y. H., Tang, A. M., Walsh, F. V., Weber, M. H., Whitney, Sau Lan, Wu, X., Wu, G., Zobernig, Decamp, D, Deschizeaux, B, Goy, C, Lees, J, Minard, M, Alemany, R, Ariztizabal, F, Comasillas, P, Crespo, J, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, L, Pacheco, A, Pascual, A, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W, Bauerdick, L, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, T, Drevermann, H, Forty, R, Hagelberg, R, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Kasemann, M, Knobloch, J, Lancon, E, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Minten, A, Miotto, A, Miquel, R, Moser, H, Nash, J, Palazzi, P, Perlas, J, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Sefkow, F, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadinotwinowska, M, Bencheikh, A, Elfellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, J, Pallin, D, Perret, P, Pietrzyk, B, Proriol, J, Prulhiere, F, Stimpfl, G, Hansen, J, Hansen, P, Mollerud, R, Nilsson, B, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Brient, J, Fouque, G, Gamess, A, Harvey, J, Orteu, S, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, D, Parsons, M, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Wasserbaech, S, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G, Passalacqua, L, Pepealtarelli, M, Picchi, P, Altoon, B, Boyle, O, Colrain, P, Tenhave, I, Lynch, J, Maitland, W, Morton, W, Raine, C, Scarr, J, Smith, K, Thompson, A, Turnbull, R, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A, Beuselinck, R, Binnie, D, Cameron, W, Cattaneo, M, Colling, D, Dornan, P, Dugeay, S, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Taylor, G, Tomalin, I, Wright, A, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C, Brodbeck, T, Finch, A, Foster, F, Hughes, G, Jackson, D, Keemer, N, Nuttall, M, Patel, A, Sloan, T, Snow, S, Whelan, E, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, H, Schmidt, H, Steeg, F, Walther, S, Wolf, B, Aubert, J, Benchouk, C, Bernard, V, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Qian, Z, Rousseau, D, Schwemling, P, Talby, M, Adlung, S, Becker, H, Blum, W, Brown, D, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Frank, M, Halley, A, Hanslkozanecka, T, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Rotscheidt, H, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Stiegler, U, Stdenis, R, Takashima, M, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Grivaz, J, Heusse, P, Janot, P, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Schune, M, Veillet, J, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, S, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Gatto, C, Giassi, A, Giorgi, M, Ligabue, F, Mannelli, E, Marrocchesi, P, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P, Walsh, J, Carter, J, Green, M, March, P, Medcalf, T, Quazi, I, Strong, J, West, L, Botterill, D, Clifft, R, Edgecock, T, Edwards, M, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Blochdevaux, B, Colas, P, Kozanecki, W, Lemaire, M, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Simohand, D, Vallage, B, Johnson, R, Litke, A, Wear, J, Ashman, J, Babbage, W, Booth, C, Buttar, C, Carney, R, Cartwright, S, Combley, F, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, L, Barberio, E, Brandt, S, Grupen, C, Mirabito, L, Schafer, U, Seywerd, H, Ganis, G, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Cinabro, D, Conway, J, Cowen, D, Feng, Z, Ferguson, D, Grahl, J, Harton, J, Jared, R, Leclaire, B, Lishka, C, Pater, J, Saadi, Y, Sharma, V, Schmitt, M, Shi, Z, Tang, Y, Walsh, A, Weber, F, Whitney, M, Wu, S, Wu, X, and Zobernig, G
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Classical mechanics, Vertex (geometry), Gluon
Abstract: A sample of 4148 four-jet events observed in the ALEPH-detector at LEP in 1989 and 1990 is used to test the underlying gauge group of strong interactions. A fit to the ratios of the "colour factors" C(F), N(C) and T(F), which determine the differential cross sections, yields N(C)/C(F) = 2.24 +/- 0.32stat +/- 0.24syst and T(F)/C(F) = 0.58 +/- 0.17stat +/- 0.23syst. This is in agreement with the values expected from QCD: N(C)/C(F) = 2.25 and T(F)/C(F) = 0.375. The non-zero value of N(C)/C(F) constitutes direct evidence for the existence of the triple-gluon coupling and excludes any abelian gauge theory by more than five standard deviations.
Published: 1992

2. Measurement of B- mixing at the Z

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Less, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. blucher, G. Bonvicini, F. Bossi, D. Brown, T.H. Burnett, H. Drevermann, F. Dydak, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, M. Martinez, J. May, S. Menary, A. Minten, A. Miotto, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R. St. Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wassebaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, R. El Fellous, P. Gay, J. Harvey, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, E.R. Nielsen, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Massimo-Brancaccio, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, A. Patel, B.S. Rowlingson, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Catteneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, T. Hansl-Kozanecka, A. Jahn, W. Kozanecki, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, G. de Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, A.M. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrochesi, A. Messineo, L. Moneta, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini-Castaldi, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, M.R. Saich, J.A. Strong, R.M. Thomas, L.R. West, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fischer, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.P. Schuller, J. Schwindling, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, E. Neugebauer, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, L. Rolandi, U. Stiegler, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, A.J. DeWeerd, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.l. Harton, J. Hilgart, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, A.M. Walsh, J.A. Wear, F.V. Weber, M.H. Whitney, Sau Lan Wu, Z.I. Zhou, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Le, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., P., Mato, R., Miquel, Mir, L. l. M., S., Orteu, A., Pacheco, J. A., Perla, E., Tubau, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, H., Albrecht, W. B., Atwood, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, D., Brown, T. H., Burnett, H., Drevermann, F., Dydak, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, B., Jost, M., Kasemann, G., Kellner, J., Knobloch, A., Lacourt, I., Lehrau, T., Lohse, D., Lüke, A., Marchioro, M., Martinez, J., May, S., Menary, A., Minten, A., Miotto, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, W., von Rüden, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wassebaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, A., Falvard, R., El Fellou, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, E. R., Nielsen, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Massimo Brancaccio, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, L. A. T., Bauerdick, K., Kleinknecht, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, W., Blum, P., Catteneo, G., Cowan, B., Dehning, H., Dietl, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, G., Lütjen, G., Lutz, W., Männer, H. G., Moser, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, G., de Bouard, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, V., Journé, D. W., Kim, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, A. M., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrochesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini Castaldi, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, M. R., Saich, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fischer, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Lançon, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, E., Neugebauer, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, L., Rolandi, U., Stiegler, L., Bellantoni, J. F., Boudreau, D., Cinabro, J. S., Conway, D. F., Cowen, A. J., Deweerd, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. l., Harton, J., Hilgart, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, Z. I., Zhou, and G., Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Aleph, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Decision maker, Measure (mathematics), Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Mixing (physics), Lepton
Abstract: From more than 175 000 hadronic Z decays observed with the ALEPH detector at LEP, we select 823 events with pairs of leptons in the final state. From these we measure χ , the probability thata b hadron which is observed to decay originated as a b hadron. We find χ =0.132 −0.026 +0.027 .
Published: 1991

3. Measurement of the B hadron lifetime

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, D. Brown, T.H. Burnett, H. Drevermann, F. Dydak, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, M. Martinez, J. May, S. Menary, A. Minten, A. Miotto, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, R. El Fellous, P. Gay, J. Harvey, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, E.R. Nielsen, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Massimo-Brancaccio, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I.ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, A. Patel, B.S. Rowlingson, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, T. Hansl-Kozanecka, A. Jahn, W. Kozanecki, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, G. de Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, J.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, L. Moneta, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini-Castaldi, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, M.R. Saich, J.A. Strong, R.M. Thomas, L.R. West, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, J.G. Ashan, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, E. Neugebauer, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, L. Rolandi, U. Stiegler, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, A.J. DeWeerd, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, J. Hilgart, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, M.A. Walsh, J.A. Wear, F.V. Weber, M.H. Whitney, Sau Lan Wu Lan Wu, Z.L. Zhou, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., P., Mato, R., Miquel, Mir, L. l. M., S., Orteu, A., Pacheco, J. A., Perla, E., Tubau, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, H., Albrecht, W. B., Atwood, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, D., Brown, T. H., Burnett, H., Drevermann, F., Dydak, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, B., Jost, M., Kasemann, G., Kellner, J., Knobloch, A., Lacourt, I., Lehrau, T., Lohse, D., Lüke, A., Marchioro, M., Martinez, J., May, S., Menary, A., Minten, A., Miotto, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, W., von Rüden, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, A., Falvard, R., El Fellou, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, E. R., Nielsen, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Massimo Brancaccio, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, L. A. T., Bauerdick, K., Kleinknecht, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, G., Lütjen, G., Lutz, W., Männer, H. G., Moser, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, G., de Bouard, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, V., Journé, D. W., Kim, J., Lefrançoi, J. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini Castaldi, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, M. R., Saich, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Lançon, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, J. G., Ashan, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, E., Neugebauer, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, L., Rolandi, U., Stiegler, L., Bellantoni, J. F., Boudreau, D., Cinabro, J. S., Conway, D. F., Cowen, A. J., Deweerd, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J., Hilgart, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, M. A., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan Wu Lan, Wu, Z. L., Zhou, and G., Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Elementary particle, Nuclear physics, High Energy Physics::Experiment, B meson, Impact parameter, Nuclear Experiment, ALEPH experiment, Particle Physics - Experiment, Lepton
Abstract: The average lifetime of B hadrons has been measured by the ALEPH experiment at LEP. Events containing B hadrons are selected by the identification of leptons with high transverse momentum in hadronic Z decays, and the lifetime is extracted from a fit to the impact parameter distribution of the lepton tracks. From a sample of 1.7×105 hadronic Z decays a lifetime of 1.29±0.06±0.10 ps is measured.
Published: 1991

4. The read-out processors of the Aleph time projection chamber and their performance

Author: A. Vayaki, F. Morsani, U. Larsson, I. Lehraus, T. Barczewski, J. A. Wear, M. Conwery, J. Fagerstrom, F. Steeg, Ps Marrocchesi, S. Xue, M. Kasemann, Werner Wiedenmann, Maria Agnese Ciocci, D. F. Cowen, D. Cinabro, B. W. LeClaire, M. Schmelling, L. Bellantoni, S. Galeotti, Juergen Thomas, R. Settles, P. Salvadori, S. Roehn, Stephen Haywood, A. Lusiani, R. C. Jared, J. S. Conway, Edoardo Milotti, A. Jahn, Robert Richter, J. May, L.A.T. Bauerdick, B. Gobbo, M. Takashima, J. F. Boudreau, J. Richstein, W. Richter, R. P. Johnson, A. W. Halley, A. Roth, E. Blucher, W. Blum, W. Tejessy, Thomas Lohse, W. Witzeling, B. Loefstedt, S. R. Amendolia, D. Passuello, S. L. Wu, F. Fidecaro, A. Minten, L. Rolandi, G. Stefanini, D. Schlatter, J. R. Pater, Blucher, E, Fagerstrom, J, Haywood, S, Larsson, U, Lehraus, I, Loefstedt, B, Lohse, T, May, J, Minten, A, Richstein, J, Richter, W, Roth, A, Schlatter, D, Stefanini, G, Tejessy, W, Takashima, M, Wiedenmann, W, Witzeling, W, Vayaki, A, Halley, A, Barczewski, T, Bauerdick, Lat, Kasemann, M, Roehn, S, Schmelling, M, Steeg, F, Blum, W, Jahn, A, Richter, R, Settles, R, Thomas, J, Amendolia, Sr, Fidecaro, F, Galeotti, S, Lusiani, Alberto, Marrocchesi, P, Morsani, F, Passuello, D, Salvadori, P, Ciocci, Ma, Gobbo, B, Milotti, E, Rolandi, Luigi, Bellantoni, L, Boudreau, J, Cinabro, D, Conway, J, Conwery, M, Cowen, Df, Jared, Rc, Johnson, R, Leclaire, B, Pater, J, Wear, J, Wu, Sl, and Xue, S.
Subjects: Physics, Nuclear and High Energy Physics, Aleph, Time projection chamber, business.industry, Detector, Electrical engineering, Tracking (particle physics), Particle detector, Software, Nuclear Energy and Engineering, Nuclear electronics, Electrical and Electronic Engineering, Projection (set theory), business, Computer hardware
Abstract: The Aleph detector is installed on the LEP electron-positron storage ring. Its central tracking detector, a time projection chamber (TPC), has about 50000 channels of sampling electronics. The digitized signals are processed by 72 double-width Fastbus modules built around an MC 68020 processor. The time projection processor is described, and the solutions, both hardware and software, adopted to run and manage such a complex system in a Fastbus-VAX environment are discussed. Practical experience with the system is reported. >
Published: 1990

5. Search for neutral Higgs bosons from supersymmetry in Z decays

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, T.H. Burnett, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, D. Courvoisier, F. Etienne, E. Matsinos, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, G. Waltermann, V. Bertin, G. De Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, E. Aubourg, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Aubourg, E, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Phenomenology, Elementary particle, Supersymmetry, lcsh:QC1-999, Standard Model, Pseudoscalar, symbols.namesake, Higgs boson, symbols, High Energy Physics::Experiment, Higgs mechanism, Particle Physics - Experiment, lcsh:Physics, Minimal Supersymmetric Standard Model, Boson
Abstract: The light scalar Higgs boson h and the pseudoscalar Higgs boson A of the minimal supersymmetric standard model have been searched for in the processes e+e−→hff and e+e−→hA using data collected by ALEPH at the LEP e+e− collider, with center of mass energies at and near the Z peak. Using a variety of signatures adapted to various mass ranges for h and A, we have excluded a large domain in the parameter space. For large values of ν2ν1, the ratio of the vacuum expectation values of the two Higgs fields, the whole range from 0 to 38.8 GeV is excluded for Mh and MA at 95% CL.
Published: 1990

6. Search for supersymmetric particles using acoplanar charged-particle pairs from Z0 decays

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, F. Bird, E. Blucher, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, J. Richstein, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R.St. Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, P. Miné, A. Rougé, M. Rumpf, H. Videau, I. Videau, D. Zwierski, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'Neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, A.M. Greene, S. Dugeay, R.W. Forty, J.F. Hassard, S. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, F. Etienne, R. Nacasch, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. De Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.-M. Lutz, P. Marotte, J.-J. Veillet, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, D.L. Hill, T.J. Jones, M. Morrissey, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, K. Stupperich, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Mastrogiacomo, A, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Chen, Y, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Bird, F, Blucher, E, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Mertens, V, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Richstein, J, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Prat, J, Proriol, J, Prulhiere, F, Bertelsen, H, Hansen, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Lindahl, A, Madsen, B, Mollerud, R, Nilsson, B, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Bernard, D, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Mine, P, Rouge, A, Rumpf, M, Videau, H, Videau, I, Zwierski, D, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Flavell, Aj, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Martin, Dj, Oneill, R, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Greene, Am, Dugeay, S, Forty, Rw, Hassard, Jf, Patton, S, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Etienne, F, Nacasch, R, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Comin, M, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Stimpfl, G, Thomas, J, Waltermann, G, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lloydowen, D, Lutz, Am, Marotte, P, Veillet, Jj, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Bj, Green, Mg, Mckemey, Ak, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Hill, Dl, Jones, Tj, Morrissey, M, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Stupperich, K, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Electron–positron annihilation, High Energy Physics::Phenomenology, Elementary particle, Supersymmetry, Charged particle, Nuclear physics, Chargino, High Energy Physics::Experiment, Photino, Particle Physics - Experiment, Boson
Abstract: We have performed a search for supersymmetric particles using acoplanar pairs of oppositely-charged particles in decays of the Z0. In 0.53 pb−1 of integrated luminosity near the Z0 peak, we observe two events where approximately four are expected from background, allowing limits to be extended on combined photino and slepton masses, and also on combined photino and chargino masses.
Published: 1990

7. Properties of hadronic events in e+e− annihilation at

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, M.L. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, F. Bird, E. Blucher, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, J. Richstein, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, R. Guirlet, P. Miné, A. Rougé, H. Videau, I. Videau, D. Zwierski, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. de Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'Neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, G.J. Barber, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, D.N. Gentry, J.F. Hassard, D.G. Miller, D.R. Price, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, P. Girtler, D. Kuhn, G. Rudolph, T.J. Brodbeck, C.K. Bowdery, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, D. Pollmann, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, F. Etienne, R. Nacasch, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. De Bouard, J. Boucrot, O. Callot, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.-M. Lutz, P. Marotte, J.-J. Veillet, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, D.L. Hill, T.J. Jones, M. Morrissey, P.r. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, K. Stupperich, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Roland, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, and G. Zobernig
Subjects: Physics, Nuclear physics, Quantum chromodynamics, Nuclear and High Energy Physics, Aleph, Particle physics, Annihilation, Large Hadron Collider, Electron–positron annihilation, Hadron, Large Electron–Positron Collider, High Energy Physics::Experiment, Sphericity
Abstract: We report on properties of hadronic events from e+e− annihilation observed by the ALEPH detector at the large Electron Positron Collider at CERN. The center-of-mass energy was . Measured distributions of the global event-shape variables sphericity, aplanarity, thrust and minor value, and of the inclusive variables xp, p⊥in, p⊥out and y are presented. We measure a mean charged multiplicity in hadronic events of 〈Nch〉=21.3±0.1 (statistical)±0.6 (systematic). The data are in good agreement with QCD-based models which use the leading-logarithm approximation, and are less well described by a model using O(αs2) QCD.
Published: 1990

8. Measurement of mixing at the Z using a jet-charge method

Author: D. Buskulic, D. Decamp, C. Goy, J.-P. Lees, M.-N. Minard, B. Mours, R. Alemany, F. Ariztizabal, P. Comas, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, Ll.M. Mir, A. Pacheco, A. Pascual, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, L.A.T. Bauerdick, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, T.H. Burnett, H. Drevermann, R.W. Forty, R. Hagelberg, S. Haywood, J. Hilgart, R. Jacobsen, B. Jost, J. Knobloch, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, M. Martinez, P. Mato, T. Mattison, H. Meinhard, S. Menary, T. Meyer, A. Minten, A. Miotto, R. Miquel, H.-G. Moser, J. Nash, P. Palazzi, J.A. Perlas, F. Ranjard, G. Redlinger, L. Rolandi, A. Roth, J. Rothberg, T. Ruan, M. Saich, D. Schlatter, M. Schmelling, F. Sefkow, W. Tejessy, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin-Otwinowska, A.M. Bencheikh, R. El Fellous, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, B. Pietrzyk, J. Proriol, F. Prulhière, G. Stimpfl, T. Fearnley, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, B.S. Nilsson, I. Efthymiopoulos, A. Kyriakis, E. Simopoulou, A. Vayaki, K. Zachariadou, J. Badier, A. Blondel, G. Bonneaud, J.C. Brient, G. Fouque, A. Gamess, J. Harvey, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, M.I. Parsons, E. Veitch, L. Moneta, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, S. Wasserbaech, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, P. Felici, P. Laurelli, G. Mannocchu, F. Murtas, G.P. Murtas, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, B. Altoon, O. Boyle, P. Colrain, I. ten Have, J.G. Lynch, W. Maitland, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, D.J. Colling, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, D. Jackson, N.R. Keemer, M. Nuttall, A. Patel, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, K. Kleinknecht, J. Raab, B. Renk, S. Roehn, H.-G. Sander, H. Schmidt, F. Steeg, S.M. Walther, B. Wolf, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, J. Carr, P. Coyle, J. Drinkard, F. Etienne, S. Papalexiou, P. Payre, Z. Qian, D. Rousseau, P. Schwemling, M. Talby, S. Adlung, H. Becker, W. Blum, D. Brown, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, F. Dydak, M. Fernandez-Bosman, M. Frank, A.W. Halley, T. Hansl-Kozanecka, J. Lauber, G. Lütjens, G. Lutz, W. Männer, Y. Pan, R. Richter, H. Rotscheidt, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, U. Stiegler, R. St. Denis, M. Takashima, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, J.-F. Grivaz, Ph. Heusse, P. Janot, D.W. Kim, F. Le Diberder, J. Lefrançois, A.-M. Lutz, M.-H. Schune, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, D. Abbaneo, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, C. Gatto, A. Giassi, M.A. Giorgi, F. Ligabue, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggini, C. Vannini, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, J.A. Strong, L.R. West, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fischer, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, W. Kozanecki, M.C. Lemaire, E. Locci, S. Loucatos, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, D. Si Mohand, B. Vallage, R.P. Johnson, A.M. Litke, J. Wear, J.G. Ashman, W. Babbage, C.N. Booth, C. Buttar, R.E. Carney, S. Cartwright, F. Combley, F. Hatfield, J. Martin, P. Reeves, L.F. Thompson, E. Barberio, S. Brandt, C. Grupen, L. Mirabito, U. Schäfer, H. Seywerd, G. Ganis, G. Giannini, B. Gobbo, F. Ragusa, L. Bellantoni, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, R.C. Jared, B.W. LeClaire, C. Lishka, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, M. Schmitt, Z.H. Shi, Y.H. Tang, A.M. Walsh, F.V. Weber, M.H. Whitney, null Sau Lan Wu, X. Wu, G. Zobernig, D., Buskulic, D., Decamp, C., Goy, J. P., Lee, M. N., Minard, B., Mour, R., Alemany, F., Ariztizabal, P., Coma, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, A., Pascual, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, R., Hagelberg, S., Haywood, J., Hilgart, R., Jacobsen, B., Jost, J., Knobloch, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, T., Mattison, H., Meinhard, S., Menary, T., Meyer, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, J. A., Perla, F., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, F., Sefkow, W., Tejessy, H., Wachsmuth, W., Wiedenmann, T., Wildish, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, B., Pietrzyk, J., Proriol, F., Prulhière, G., Stimpfl, T., Fearnley, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, A., Kyriaki, E., Simopoulou, A., Vayaki, K., Zachariadou, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, J., Harvey, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, M. I., Parson, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, S., Wasserbaech, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, P., Felici, P., Laurelli, G., Mannocchu, F., Murta, G. P., Murta, L., Passalacqua, M., Pepe Altarelli, P., Picchi, B., Altoon, O., Boyle, P., Colrain, I., ten Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, D. J., Colling, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, D., Jackson, N. R., Keemer, M., Nuttall, A., Patel, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, S., Papalexiou, P., Payre, Z., Qian, D., Rousseau, P., Schwemling, M., Talby, S., Adlung, H., Becker, W., Blum, D., Brown, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, M., Frank, A. W., Halley, T., Hansl Kozanecka, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, H., Rotscheidt, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, U., Stiegler, Denis, R. S. t., M., Takashima, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Rizzo, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggini, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, L. R., West, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fischer, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, W., Kozanecki, M. C., Lemaire, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, D., Si Mohand, B., Vallage, R. P., Johnson, A. M., Litke, J., Wear, J. G., Ashman, W., Babbage, C. N., Booth, C., Buttar, R. E., Carney, S., Cartwright, F., Combley, F., Hatfield, J., Martin, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, C., Grupen, L., Mirabito, U., Schäfer, H., Seywerd, G., Gani, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, R. C., Jared, B. W., Leclaire, C., Lishka, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, M., Schmitt, Z. H., Shi, Y. H., Tang, A. M., Walsh, F. V., Weber, M. H., Whitney, Sau Lan, Wu, X., Wu, G., Zobernig, Buskulic, D, Decamp, D, Goy, C, Lees, J, Minard, M, Mours, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, J, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, L, Pacheco, A, Pascual, A, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W, Bauerdick, L, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, T, Drevermann, H, Forty, R, Hagelberg, R, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Knobloch, J, Lancon, E, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Minten, A, Miotto, A, Miquel, R, Moser, H, Nash, J, Palazzi, P, Perlas, J, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Sefkow, F, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadinotwinowska, M, Bencheikh, A, Elfellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, J, Pallin, D, Perret, P, Pietrzyk, B, Proriol, J, Prulhiere, F, Stimpfl, G, Fearnley, T, Hansen, J, Hansen, P, Mollerud, R, Nilsson, B, Efthymiopoulos, I, Kyriakis, A, Simopoulou, E, Vayaki, A, Zachariadou, K, Badier, J, Blondel, A, Bonneaud, G, Brient, J, Fouque, G, Gamess, A, Harvey, J, Orteu, S, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, D, Parsons, M, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Wasserbaech, S, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G, Passalacqua, L, Pepealtarelli, M, Picchi, P, Altoon, B, Boyle, O, Colrain, P, Tenhave, I, Lynch, J, Maitland, W, Morton, W, Raine, C, Scarr, J, Smith, K, Thompson, A, Turnbull, R, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A, Beuselinck, R, Binnie, D, Cameron, W, Cattaneo, M, Colling, D, Dornan, P, Dugeay, S, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Taylor, G, Tomalin, I, Wright, A, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C, Brodbeck, T, Finch, A, Foster, F, Hughes, G, Jackson, D, Keemer, N, Nuttall, M, Patel, A, Sloan, T, Snow, S, Whelan, E, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, H, Schmidt, H, Steeg, F, Walther, S, Wolf, B, Aubert, J, Benchouk, C, Bernard, V, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Qian, Z, Rousseau, D, Schwemling, P, Talby, M, Adlung, S, Becker, H, Blum, W, Brown, D, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Frank, M, Halley, A, Hanslkozanecka, T, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Rotscheidt, H, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Stiegler, U, Stdenis, R, Takashima, M, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Grivaz, J, Heusse, P, Janot, P, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Schune, M, Veillet, J, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, S, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, M, Ligabue, F, Mannelli, E, Marrocchesi, P, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P, Walsh, J, Carter, J, Green, M, March, P, Medcalf, T, Quazi, I, Strong, J, West, L, Botterill, D, Clifft, R, Edgecock, T, Edwards, M, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Blochdevaux, B, Colas, P, Kozanecki, W, Lemaire, M, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Simohand, D, Vallage, B, Johnson, R, Litke, A, Wear, J, Ashman, J, Babbage, W, Booth, C, Buttar, C, Carney, R, Cartwright, S, Combley, F, Hatfield, F, Reeves, P, Thompson, L, Barberio, E, Brandt, S, Grupen, C, Mirabito, L, Schafer, U, Seywerd, H, Ganis, G, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Cinabro, D, Conway, J, Cowen, D, Feng, Z, Ferguson, D, Grahl, J, Harton, J, Jared, R, Leclaire, B, Lishka, C, Pater, J, Saadi, Y, Sharma, V, Schmitt, M, Shi, Z, Tang, Y, Walsh, A, Weber, F, Whitney, M, Wu, S, Wu, X, and Zobernig, G
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Annihilation, Meson, Hadron, LEP, Jet (particle physics), Bottom quark, Nuclear physics, Particle decay, High Energy Physics::Experiment, B meson
Abstract: Results on B 0 − B 0 mixing in e + e − annihilation at LEP are reported. A new method is used, where the charge of one b quark is tagged by a high- p , high- p ⊥ electron or muon, and the charge of the other is extracted from the momentum-weighted average of the charges of jet fragments. Based on the analysis of 180 000 hadronic Z decays produced in the ALEPH detector, ⨍ d χ d +0.72⨍ s χ s =0.113±0.018( stat. )±0.027( syst. ) is obtained. Combining this result with the ALEPH dipleton measurement yields χ =0.129±0.022.
Published: 1992

9. Search for a new weakly interacting particle

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, Mir Ll.M., A. Pacheco, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, D. Brown, T.H. Burnett, H. Drevermann, F. Dydak, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, J. Hilgart, B. Jost, M. Kasemann, J. Knobloch, A. Lacourt, E. Lançon, I. Lehraus, T. Lohse, A. Marchioro, M. Martinez, S. Menary, A. Minten, A. Miotto, R. Miguel, H.-G. Moser, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, R. St. Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, R. El Fellous, P. Gay, J. Harvey, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, E.R. Nielsen, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, A. Patel, B.S. Rowlingson, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, H. Becker, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, T. Hansl-Kozanecka, A. Jahn, W. Kozanecki, E. Lange, J. Lauber, G. Lütjens, G. Lutz, W. Männer, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, D.W. Kim, F. Le Diberder, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, L. Moneta, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, M.R. Saich, J.A. Strong, R.M. Thomas, L.R. West, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Locci, S. Loucatos, E. Monnier, P. Perez, J.A. Perlas, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, B. Vallage, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, E. Neugebauer, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, F. Ragusa, L. Rolandi, U. Stiegler, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, A.J. DeWeerd, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, A.M. Walsh, J.A. Wear, F.V. Weber, M.H. Whitney, null Sau Lan Wu, Z.L. Zhou, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., P., Mato, Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, D., Brown, T. H., Burnett, H., Drevermann, F., Dydak, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Marchioro, M., Martinez, S., Menary, A., Minten, A., Miotto, R., Miguel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, A., Falvard, R., El Fellou, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, E. R., Nielsen, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, L. A. T., Bauerdick, K., Kleinknecht, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, M. R., Saich, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, E., Neugebauer, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, J. F., Boudreau, D., Cinabro, J. S., Conway, D. F., Cowen, A. J., Deweerd, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, Z. L., Zhou, and G., Zobernig
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Aleph, Particle physics, Gauge boson, Isospin, Electron–positron annihilation, High Energy Physics::Phenomenology, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: A search for events of the type e + e − →l + l − X 0 , where X 0 can be any weakly interacting particle which couples to the Z, has been performed with the ALEPH detector at LEP, by searching for acollinear lepton pairs. Such particles can be excluded up to a mass of 7.0 GeV/c 2 for a value of the ratio of branching fractions, Br( Z →X 0 l + l − )/Br(Z→ l + l − ), greater than 2.5 × 10 −3 if the X 0 has third component of isospin, I 3 greater than 1 2 and decays to a pair of virtual gauge bosons. When this analysis is combined with the previous results of the Higgs particle searches from ALEPH, this limit can be extended to an X 0 mass of 60 GeV/c 2 .
Published: 1991

10. Measurement of isolated photon production in hadronic Z decays

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, Ll.M. Mir, A. Pacheco, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, L.A.T. Bauerdick, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, D. Brown, T.H. Burnett, H. Drevermann, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, J. Hilgart, B. Jost, M. Kasemann, J. Knobloch, A. Lacourt, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, A. Marchioro, M. Martinez, P. Mato, S. Menary, A. Minten, A. Miotto, R. Miquel, H.-G. Moser, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotsheidt, M. Saich, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, R. El Fellous, A. Falvard, P. Gay, J. Harvey, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, A. Patel, B.S. Rowlingson, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, K. Kleinknecht, J. Raab, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, S.M. Walther, B. Wolf, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, H. Becker, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, F. Dydak, M. Fernandez-Bosman, T. Hansl-Kozanecka, A. Jahn, W. Kozanecki, E. Lange, J. Lauber, G. Lütjens, G. Lutz, W. Männer, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, D.W. Kim, F. Le Diberder, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, D. Abbaneo, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, L. Moneta, F. Palla, G. Sanguinetti, J. Steinberger, R. Tecchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quasi, J.A. Strong, R.M. Thomas, L.R. West, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Locci, S. Loucatos, E. Monnier, P. Perez, J.A. Perlas, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, B. Vallage, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, E. Barberio, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, F. Ragusa, L. Rolandi, U. Stiegler, L. Bellantoni, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, Z.H. Shi, Y.H. Tang, A.M. Walsh, J.A. Wear, F.V. Weber, M.H. Whitney, null Sau Lan Wu, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotsheidt, M., Saich, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, R., El Fellou, A., Falvard, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tecchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quasi, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, and G., Zobernig
Subjects: Physics, Quark, Quantum chromodynamics, Nuclear and High Energy Physics, Aleph, Particle physics, Photon, High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, Detector, Hadron, Parton, Radiation, Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: The production of high energy isolated photons in hadronic Z decays is measured with the ALEPH detector at LEP using a sample of 180 000 hadronic events. Such photons are mainly radiated by quarks, thus giving direct insights into the early parton showering mechanism. The observed rate is compared with a QCD calculation of final state radiation from quarks.
Published: 1991

11. Measurement of the polarization of τ leptons produced in Z decays

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, Ll.M. Mir, A. Pacheco, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, L.A.T. Bauerdick, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, D. Brown, T.H. Burnett, H. Drevermann, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, J. Hilgart, B. Jost, M. Kasemann, J. Knobloch, A. Lacourt, E. Lançon, I. Lehraus, T. Lohse, A. Marchioro, M. Martinez, P. Mato, S. Menary, A. Minten, A. Miotto, R. Miquel, H.-G. Moser, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, M. Saich, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, R. El Fellous, A. Falvard, P. Gay, J. Harvey, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, W. Hermann, E.E. Kluge, J. Liebmann, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, A. Patel, B.S. Rowlingson, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, K. Kleinknecht, J. Raab, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, S.M. Walther, B. Wolf, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, H. Becker, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, F. Dydak, M. Fernandez-Bosman, T. Hansl-Kozanecka, A. Jahn, W. Kozanecki, E. Lange, J. Lauber, G. Lütjens, G. Lutz, W. Männer, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, D.W. Kim, F. Le Diberder, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, D. Abbaneo, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, L. Moneta, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, J.A. Strong, R.M. Thomas, L.R. West, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Locci, S. Loucatos, E. Monnier, P. Perez, J.A. Perlas, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, B. Vallage, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, E. Barberio, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, F. Ragusa, L. Rolandi, U. Stiegler, L. Bellantoni, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, Z.H. Shi, Y.H. Tang, A.M. Walsh, J.A. Wear, F.V. Weber, M.H. Whitney, null Sau Lan Wu, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, M., Saich, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, R., El Fellou, A., Falvard, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, W., Hermann, E. E., Kluge, J., Liebmann, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, and G., Zobernig
Subjects: Coupling constant, Physics, Nuclear and High Energy Physics, Particle physics, Neutral current, Electron–positron annihilation, Electroweak interaction, Weinberg angle, Parity (physics), Pseudovector, Particle Physics - Experiment, Lepton
Abstract: The polarization of τ leptons produced in the reaction e+e−→τ+τ− at the Z resonance has been measured using the τ decay modes eνeντ, μνμντ, πντ, ϱντ, and a1ντ. The mean value obtained is Pτ = −0.152±0.045, indicating that parity is violated in the neutral current process e+e− → τ+τ−. The result corresponds to a ratio of a neutral current vector and axial vector coupling constants of the τ lepton g V τ (M 2 Z ) g A τ (M 2 Z ) = 0.076±0.023 and a value of the electroweak mixing parameter sin2θw(M2Z) = 0.2302 ± 0.0058.
Published: 1991

12. Measurement of the forward-backward asymmetry in and

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, Ll.M. Mir, A. Pacheco, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, L.A.T. Bauerdick, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, D. Brown, T.H. Burnett, H. Drevermann, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, J. Hilgart, B. Jost, M. Kasemann, J. Knobloch, A. Lacourt, E. Lançon, I. Lehraus, T. Lohse, A. Marchioro, M. Martinez, P. Mato, S. Menary, A. Minten, A. Miotto, R. Miquel, H.-G. Moser, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, W. Wu, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, R. El Fellous, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, E.R. Nielsen, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, A. Patel, B.S. Rowlingson, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, K. Kleinknecht, J. Raab, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, S.M. Walther, B. Wolf, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, H. Becker, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, F. Dydak, M. Fernandez-Bosman, T. Hansl-Kozanecka, A. Jahn, W. Kozanecki, E. Lange, J. Lauber, G. Lütjens, G. Lutz, W. Männer, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, J. Harvey, Ph. Heusse, P. Janot, D.W. Kim, F. Le Diberder, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, D. Abbaneo, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, L. Moneta, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, M.R. Saich, J.A. Strong, R.M. Thomas, L.R. West, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Locci, S. Loucatos, E. Monnier, P. Perez, J.A. Perlas, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, B. Vallage, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, E. Neugebauer, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, F. Ragusa, L. Rolandi, U. Stiegler, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, Z.H. Shi, Y.H. Tang, A.M. Walsh, J.A. Wear, F.V. Weber, M.H. Whitney, null Sau Lan Wu, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, W., Wu, Z., Ajaltouni, M., Bardadin Otwinowska, A., Falvard, R., El Fellou, P., Gay, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, E. R., Nielsen, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, J., Harvey, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, M. R., Saich, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, E., Neugebauer, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, J. F., Boudreau, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, and G., Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Aleph, Electron–positron annihilation, media_common.quotation_subject, Electroweak interaction, Hadron, Weinberg angle, Measure (mathematics), Asymmetry, Nuclear physics, Lepton, media_common
Abstract: From a sample of 150 000 hadronic Z decays collected with the ALEPH detector at LEP, events containing prompt leptons are used to measure the forward-backward asymmetries for the channels Z → b b and Z → c c , giving the results AFBb=0.126±0.028±0.012 and AFBc=0.064±0.039±0.030. These asymmetries correspond to the value of effective electroweak mixing angle at the Z mass sin2θW(mZ2) = 0.2262±0.0053.
Published: 1991

13. Production and decay of charmed mesons at the Z resonance

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, Ll.M. Mir, A. Pacheco, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, L.A.T. Bauerdick, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, D. Brown, T.H. Burnett, H. Drevermann, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, J. Hilgart, B. Jost, M. Kasemann, J. Knobloch, A. Lacourt, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, A. Marchioro, M. Martinez, P. Mato, S. Menary, A. Minten, A. Miotto, R. Miquel, H.-G. Moser, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, M. Saich, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, R. El Fellous, A. Falvard, P. Gay, J. Harvey, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, B.S. Nilsson, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, L. Moneta, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, N.M. Lieske, S.J. Patton, D.G. Payne, M.J. Phillips, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, A. Patel, B.S. Rowlingson, T. Sloan, S.W. Snow, E.P. Whelan, T. Barczewski, K. Kleinknecht, J. Raab, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, S.M. Walther, B. Wolf, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, H. Becker, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, F. Dydak, M. Fernandez-Bosman, T. Hansl-Kozanecka, A. Jahn, W. Kozanecki, E. Lange, J. Lauber, G. Lütjens, G. Lutz, W. Männer, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, D.W. Kim, F. Le Diberder, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, D. Abbaneo, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M.A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, C. Gatto, A. Giassi, M.A. Giorgi, F. Ligabue, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P.G. Verdini, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, I.S. Quazi, J.A. Strong, R.M. Thomas, L.R. West, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Locci, S. Loucatos, E. Monnier, P. Perez, J.A. Perlas, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, B. Vallage, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, E. Barberio, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, F. Ragusa, L. Rolandi, U. Stiegler, L. Bellantoni, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J. Grahl, J.L. Harton, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, J.R. Pater, Y. Saadi, V. Sharma, Z.H. Shi, Y.H. Tang, A.M. Walsh, J.A. Wear, F.V. Weber, M.H. Whitney, null Sau Lan Wu, G. Zobernig, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, M., Saich, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, R., El Fellou, A., Falvard, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, and G., Zobernig
Subjects: Nuclear physics, Physics, Hadronic decay, Nuclear and High Energy Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, Beam energy, Particle Physics - Experiment, Hadronization
Abstract: In a sample of 190 000 hadronic Z decays, three signals of charm production are observed: two from the exclusive decays D ° → K − π + and D ∗+ → D °π + → K − π + π + and one in the transverse-momentum distribution of soft hadrons relative to the nearest jet. The features of these signals are in good agreement with expectations based on the standard model and previous measurements of the branching fractions. The number of D ∗± → K ± π ± π ± per hadronic decay of the Z is measured to be (5.11±0.34) × 10 −3 , and the branching ratio B(D 0 → K − π + ) is (3.62 ± 0.34 ± 0.44)%. Charm hadronization has been studied. The average fraction of the beam energy carried by the D ∗ meson is found to be 〈 X E 〉 c = 0.504 −0.017 +0.013 ±0.008, and implications of the measurements on the pseudoscalar-to-vector production ratio of charmed mesons are discussed.
Published: 1991

14. Measurement of the strong coupling constant alfa_s from global event-shape variables of hadronic Z decays

Author: D. Decampo, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, D. Brown, T.H. Burnett, H. Drevermann, F. Dydak, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, M. Martinez, J. May, S. Menary, A. Minten, A. Miotto, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, R. El Fellous, P. Gay, J. Harvey, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, G. Stimpfl, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, E.R. Nielsen, B.S. Nilsson, G. Petersen, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D.J. Candlin, E. Veitch, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Massimo-Brancaccio, F. Murtas, G.P. Murtas, G. Nicoletti, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, R.M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, H. Schmidt, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, T. Hansl-Kozanecka, G. Hauser, A. Jahn, W. Kozanecki, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, J. Schröder, A.S. Schwarz, R. Settles, U. Stierlin, J. Thomas, G. Wolf, V. Bertin, G. de Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, I. Videau, Z. Zhang, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M.A. Ciocci, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, L. Moneta, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, A. Venturi, J. Walsh, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, L. Mirabito, E. Neugebauer, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, L. Rolandi, U. Stiegler, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, A.J. DeWeerd, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J.L. Harton, J. Hilgart, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, Sau Lan Wu, and G. Zobernig
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, Hadron, Measure (mathematics), Hadronization, law.invention, Nuclear physics, Renormalization, law, High Energy Physics::Experiment, Collider, Constant (mathematics), Particle Physics - Experiment
Abstract: An analysis of global event-shape variables has been carried out for the reaction e+e−→Z0→hadrons to measure the strong coupling constant αs. This study is based on 52 720 hadronic events obtained in 1989/90 with the ALEPH detector at the LEP collider at energies near the peak of the Z-resonance. In order to determine αs, second order QCD predictions modified by effects of perturbative higher orders and hadronization were fitted to the experimental distributions of event-shape variables. From a detailed analysis of the theoretical uncertainties we find that this approach is best justified for the differential two-jet rate, from which we obtain αs(MZ2) = 0.121 ± 0.002(stat.)±0.003(sys.)±0.007(theor.) using a renormalization scale ω = 1 2 M Z . The dependence of αs(MZ2) on ω is parameterized. For scales mb
Published: 1991

15. PERFORMANCE OF THE ALEPH TIME PROJECTION CHAMBER

Author: H. Schmidt, T. Barczewski, F. Steeg, W. B. Atwood, J. A. Wear, Juergen Thomas, H. Rotscheidt, D. Cinabro, D. F. Cowen, Sau Lan Wu, A. Roth, W. Blum, U. Stierlin, R. Settles, B. W. LeClaire, I. ten Have, M. Schmelling, M. J. Price, Stephen Haywood, R. C. Jared, S. Roehn, Konrad Kleinknecht, W. Tejessy, D. Pollmann, F. Fidecaro, Thomas Lohse, D. Schlatter, J. R. Pater, Ilias Efthymiopoulos, A. Minten, P. Faure, M. Takashima, A. W. Halley, R. P. Johnson, A. Lusiani, Z. Y. Feng, D. Lueke, G. Stefanini, G. A. Cowan, Werner Wiedenmann, J. S. Conway, L. Bellantoni, A. Jahn, Robert Richter, Fabio Morsani, B. Gobbo, W. Richter, J. May, J. Schroeder, L. Rolandi, J. F. Boudreau, Matthias Kasemann, L.A.T. Bauerdick, E. Blucher, A. Vayaki, O. Boyle, I. Lehraus, P. S. Marrocchesi, T. C. Meyer, W. Witzeling, B. Lofstedt, Atwood, Wb, Barczewski, T, Bauerdick, Lat, Bellantoni, L, Blucher, E, Blum, W, Boudreau, J, Boyle, O, Cinabro, D, Conway, J, Cowan, G, Cowen, Df, Efthymiopoulos, I, Faure, P, Feng, Z, Fidecaro, F, Gobbo, B, Halley, Aw, Haywood, S, Jahn, A, Jared, Rc, Johnson, Rp, Kasemann, M, Kleinknecht, K, Leclaire, B, Lehraus, I, Lofstedt, B, Lohse, T, Lueke, D, Lusiani, Alberto, Marrocchesi, P, May, J, Meyer, Tc, Morsani, F, Minten, A, Pater, J, Pollmann, D, Price, M, Richter, R, Richter, W, Roehn, S, Rolandi, Luigi, Roth, A, Rotscheidt, H, Schlatter, D, Schmelling, M, Schmidt, H, Schroeder, J, Settles, R, Steeg, F, Stefanini, G, Stierlin, U, Takashima, M, Tejessy, W, Tenhave, I, Thomas, J, Vayaki, A, Wear, J, Wiedenmann, W, Witzeling, W, and Wu, Sl
Subjects: Physics, Nuclear and High Energy Physics, Time projection chamber, Physics::Instrumentation and Detectors, Tracking (particle physics), Particle identification, Particle detector, Momentum, Nuclear physics, Azimuth, Pair production, High Energy Physics::Experiment, Detectors and Experimental Techniques, Instrumentation, Image resolution
Abstract: The performance of the ALEPH Time Projection Chamber (TPC) has been studied using data taken during the LEP running periods in 1989 and 1990. After correction of residual distortions and optimisation of coordinate reconstruction algorithms, single coordinate resolutions of 173-mu-m in the azimuthal and 740-mu-m in the longitudinal direction are achieved. This results in a momentum resolution for the TPC of DELTA-p/p2 = 1.2 x 10(-3) (GeV/c)-1. In combination with the ALEPH Inner Tracking Chamber (ITC), a total momentum resolution of DELTA-p/p2 = 0.8 x 10(-3) (GeV/c)-1 is obtained. With respect to particle identification, the detector achieves a resolution of 4.4% for the measurement of the ionisation energy loss.
Published: 1991

16. TRACKING WITH THE ALEPH TIME PROJECTION CHAMBER

Author: L. Bellantoni, A. Minten, Sau Lan Wu, Konrad Kleinknecht, G. Stefanini, H. Schmidt, J. S. Conway, P.S. Marrocchesi, J. A. Wear, W. Tejessy, A. Jahn, J. F. Boudreau, Robert Richter, B. Gobbo, I. Lehraus, Thomas Lohse, A. Vayaki, D. F. Cowen, Werner Wiedenmann, Edoardo Milotti, L. Rolandi, Matthias Kasemann, H. Rotscheidt, W. B. Atwood, W. Witzeling, D. Cinabro, A. Roth, T. Barczewski, F. Steeg, R. Settles, W. Blum, L.A.T. Bauerdick, Juergen Thomas, E. Blucher, P. Faure, M. Takashima, R. P. Johnson, J. Schroeder, F. Fidecaro, D. Schlatter, J. R. Pater, Z. Y. Feng, Ilias Efthymiopoulos, A. W. Halley, A. Lusiani, O. Boyle, T. C. Meyer, S. Roehn, Stephen Haywood, B. W. LeClaire, M. Schmelling, R. C. Jared, J. May, D. Leuke, G. A. Cowan, Atwood, Wb, Barczewski, T, Bauerdick, Lat, Bellantoni, L, Blucher, E, Blum, W, Boudreau, J, Boyle, O, Cinabro, D, Conway, J, Cowan, G, Cowen, Df, Efthymiopoulos, I, Faure, P, Feng, Z, Fidecaro, F, Gobbo, B, Halley, Aw, Haywood, S, Jahn, A, Jared, Rc, Johnson, Rp, Kasemann, M, Kleinknecht, K, Leclaire, B, Lehraus, I, Lohse, T, Lueke, D, Lusiani, Alberto, Marrocchesi, P, May, J, Meyer, Tc, Milotti, E, Minten, A, Pater, J, Richter, R, Roehn, S, Rolandi, Luigi, Roth, A, Rotscheidt, H, Schlatter, D, Schmelling, M, Schmidt, H, Schroeder, J, Settles, R, Steeg, F, Stefanini, G, Takashima, M, Tejessy, W, Thomas, J, Vayaki, A, Wear, J, Wiedenmann, W, Witzeling, W, and Wu, Sl
Subjects: Physics, Nuclear and High Energy Physics, Momentum (technical analysis), Aleph, Time projection chamber, Physics::Instrumentation and Detectors, Particle accelerator, Tracking (particle physics), Particle detector, law.invention, Nuclear physics, Azimuth, Nuclear Energy and Engineering, law, High Energy Physics::Experiment, Electrical and Electronic Engineering, Collider
Abstract: The tracking performance of the ALEPH time projection chamber (TPC) has been studied using the data taken during the LEP (Large Electron-Positron Collider) running periods in 1989 and 1990. After careful correction of residual distortions and optimization of coordinate reconstruction algorithms, a single coordinate resolution of 173 mu m in the azimuthal and 740 mu m in the longitudinal direction is achieved. This results in a momentum resolution for the TPC alone of Delta p/p/sup 2/=0.0012 (GeV/c)/sup -1/. In combination with the ALEPH inner tracking chamber (ITC), a total momentum resolution of Delta p/p/sup 2/=0.0008 (GeV/c)/sup -1/, close to the design specifications, is reached. >
Published: 1991

17. Searches for the standard Higgs boson

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, S. Jin, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, J. Bourotte, D. Brown, T.H. Burnett, H. Drevermann, F. Dydak, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, M. Martinez, J. May, S. Menary, A. Minten, A. Miotto, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, R. El Fellous, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, B.S. Nilsson, G. Petersen, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, M. Franck, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, V. Bertin, G. de Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, Z. Zhang, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M.A. Ciocci, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J. Schwindling, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, E. Milotti, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, A.J. DeWeerd, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J.L. Harton, J. Hilgart, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, Sau Lan Wu, G. Zobernig, Decamp, D, Deschizeaux, B, Goy, C, Lees, Jp, Minard, Mn, Alemany, R, Crespo, Jm, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mato, P, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Bourotte, J, Brown, D, Burnett, Th, Drevermann, H, Dydak, F, Forty, Rw, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Martinez, M, May, J, Menary, S, Minten, A, Miotto, A, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wasserbaech, S, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Elfellous, R, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Nilsson, B, Petersen, G, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Braems, F, Brient, Jc, Fouque, G, Gamess, A, Guirlet, R, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Pepealtarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bernard, V, Bonissent, A, Courvoisier, D, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Franck, M, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zhang, Z, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ciocci, Ma, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Schwindling, J, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Apollinari, G, Giannini, G, Gobbo, B, Liello, F, Milotti, E, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Deweerd, Aj, Feng, Z, Ferguson, Dp, Harton, Jl, Hilgart, J, Jacobsen, Je, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Aleph, Particle physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Lower limit, Standard Model, Nuclear physics, Higgs boson, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, Boson
Abstract: A data sample corresponding to about 100 000 hadronic Z decays collected by ALEPH at LEP has been used to search for the standard Higgs boson produced in the reaction e + e − → H 0 Z 0∗ . No indication for any signal was found, and a 95% CL lower limit on the Higgs boson mass has been set at 41.6 GeV.
Published: 1990

18. A measurement of the phases of the CP-violating amplitudes in K0→2π decays and a test of CPT invariance

Author: L. Bertanza, W. Weihs, G. Kesseler, H.N. Nelson, C. Cerri, I. Mannelli, I. Harrus, R. Carosi, H. D. Wahl, R.L. Chase, A. M. Lutz, G.M. Pierazzini, M. Kasemann, Konrad Kleinknecht, S. Roehn, L. Gatignon, Lydia Iconomidou-Fayard, R. Black, V. Gibson, J. van der Lans, G. Zech, Arthur Schaffer, E. Augé, A. Bigi, J. Muir, D. J. Candlin, D. Coward, D.C. Cundy, R. Heinz, H.G. Sander, R. Casali, B. Renk, H. Burkhardt, A. Nappi, H. Blümer, P. Mayer, M. Holder, Ph. Heusse, Peter Clarke, G. Gargani, G. Quast, Clemens Becker, Ken Peach, Daniel Fournier, H. Rohrer, N. Doble, P. Grafström, R. Fantechi, B. Panzer, P. Calafiura, R. Hagelberg, M. Calvetti, and M. Rost
Subjects: Phase difference, Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Antiparticle, Amplitude, CPT symmetry, CP violation, Limit (mathematics), Mass matrix, lcsh:Physics, lcsh:QC1-999
Abstract: The phases of the CP-violating amplitudes in K0→π+π− and K0→2π0 decays, φ+−=46.9°±2.2° and φ00=47.1°±2.8°, have been measured in the same experiment, and a direct comparison gives the phase difference φ00−φ+−=0.2°±2.9°. This result leads to an upper limit on possible CPT violation in the K0 mass matrix, of |(m K 0 −m K 0 )/m K 0 | −18 at the 95% confidence level and is the most stringent test of the equality of particle and antiparticle masses.
Published: 1990

19. Search for excited neutrinos in Z decay

Author: D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, R. Miguel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, S. Jin, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W.B. Atwood, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, J. Bourotte, D. Brown, T.H. Burnett, H. Drevermann, F. Dydak, R.W. Forty, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, A. Marchioro, M. Martinez, S. Menary, A. Minten, A. Miotto, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wasserbaech, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, R. El Fellous, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, B.S. Nilsson, G. Petersen, I. Efthymiopoulos, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, F. Braems, J.C. Brient, G. Fouque, A. Gamess, R. Guirlet, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Massimo-Brancacci, F. Murtas, G.P. Murtas, G. Nicoletti, M. Pepe-Altarelli, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. ten Have, J.L. Hearns, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, D. Courvoisier, F. Etienne, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, V. Bertin, G. de Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, Z. Zhang, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M.A. Ciocci, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, G. Apollinari, G. Giannini, B. Gobbo, F. Liello, E. Milotti, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, A.J. DeWeerd, Z. Feng, D.P.S. Ferguson, Y.S. Gao, J.L. Harton, J. Hilgart, J.E. Jacobsen, R.C. Jared, R.P. Johnson, B.W. LeClaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, Sau Lan Wu, and G. Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Aleph, Photon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, High Energy Physics::Phenomenology, Detector, Lower limit, Nuclear physics, Excited state, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment
Abstract: Excited neutrinos decaying into a neutrino and a photon are searched for in the ALEPH detector at LEP. No evidence is found for Z decay into vv∗ or v∗v∗ final states. Upper limits are derived on excited neutrino couplings up to excited neutrino masses close to the Z mass. Lower limits on the v∗ mass, independent of the v∗ decay modes, are deduced from the total Z width.
Published: 1990

20. Search for excited leptons in Z0 decay

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, T.H. Burnett, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R.St. Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhiére, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, D. Courvoisier, F. Etienne, E. Matsinos, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Catteneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, G. Waltermann, V. Bertin, G. De Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foá, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, E. Aubourg, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, B. Gobbo, F. Liello, E. Millotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, I, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Aubourg, E, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Operations research, business.industry, Knowledge engineering, Plan (drawing), Asset (computer security), Electric power system, Software, Knowledge base, Case-based reasoning, Unavailability, business, Particle Physics - Experiment
Abstract: Due to the severity of system-wide power outages, though their probability of occurrence is slight, regulatory authorities require that a system restoration plan be drawn up and kept up to date at all times. The power outage that affected northeastern North America in 2003 proved the need for such a requirement. The particular structure of Hydro-Quebec's power system requires the use of a highly specific system restoration procedure. The daily preparation of the system restoration plan is based on a strategy whose application requires that a restoration sequence be drawn up that uses available equipment, the electrical behavior of which has been validated using appropriate studies. Over the years, Hydro-Quebec has accumulated a sizeable pool of knowledge that brings together all the solutions already studied. System restoration planners use their know-how to find the best solution, determine whether it is appropriate, and proceed to apply it. When required, new solutions must be developed. The new RECRE software program (French acronym for “Remise En Charge du Reseau” – System Restoration) has been implemented by Hydro-Quebec in 2005. The aim of this knowledge management system is to have system restoration knowledge become a tangible, growth-oriented and enhanceable asset. The system is made up of two modules: the knowledge engineering module, whereby modeling can be done of the system restoration strategy and known solutions in a knowledge base, and the planning module, whereby system restoration plans can be drawn up based on the unavailability of power system equipment. The RECRE system can produce a validated and adequate plan in a few seconds along with all the documents required for its dissemination. The RECRE system can also analyze in a few minutes all of the situations that apply to scheduled outages for the weeks that follow or the upcoming year. This allows solution gaps to be identified in the knowledge base.
Published: 1990

21. Determination of the Leptonic Branching Ratios of the Z

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, F. Bird, E. Blucher, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, J. Richstein, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, R. Guirlet, P. Miné, A. Rougé, H. Videau, I. Videau, D. Zwierski, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'Neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, E. Rensch, A. Stahl, K. Tittel, M. Wunsch, G.J. Barber, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, D.N. Gentry, J.F. Hassard, D.G. Miller, D.R. Price, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, F. Etienne, R. Nacasch, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. De Bouard, J. Boucrot, O. Callot, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.-M. Lutz, P. Marotte, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, D.L. Hill, T.J. Jones, M. Morrissey, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, K. Stupperich, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, and G. Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Partial width, Branching fraction, High Energy Physics::Phenomenology, Hadron, Branching (polymer chemistry), Nuclear physics, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment, Lepton, Boson
Abstract: The ratios of the numbers of Z bosons decaying to e+e−, μ+μ− and τ+τ− pairs to the number decaying to hadrons have been measured. The branching ratios and partial widths for each channel were determined and found to be equal, consistent with lepton universality. The mean leptonic branching ratio was found to be 0.0321 ± 0.0013 and the leptonic partial width to be 85.4 ± 5.3 MeV. The partial widths for hadronic decays and for invisible decays were deduced to be 1833 ± 116 MeV and 569 ± 92 MeV, respectively. The number of light neutrino types, assuming only the standard model value for the ratio Θ e Θ v , was found to be 3.35 ± 0.41.
Published: 1990

22. ALEPH: a Detector for Electron-Positron Annihilations at LEP

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, L.I.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, Y. Jiang, J. Lin, R. Liu, W. Lu, T. Ruan, T. Wang, X. Wang, D. Wu, W. Wu, Y. Xie, D. Xu, R. Xu, Y. Xu, W. Yan, M. Ye, J. Zhang, H. Zhao, W. Zhao, H. Albrecht, A. Ball, F. Bird, E. Blucher, T. Charity, H. Drevermann, F. Dydak, M. Ferro-Luzzi, Ll. Garrido, C. Grab, R. Grub, R. Hagelberg, S. Haywood, B. Ivesdal, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, P. Lazeyras, I. Lehraus, B. Lofstedt, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J.M. Maugain, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, R. Pintus, L. Pregernig, M. Price, F. Ranjard, J. Richstein, W. Richter, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St. Denis, P. Schilly, D. Schllater, G. Stefanini, M. Takashima, M. Talby, J.C. Tarle, H. Taureg, W. Tejessy, H. Verweij, H. Wachsmuth, H. Wahl, S. Wheeler, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, M. Brossard, R. Chadelas, F. Daudon, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, M. Bercher, U. Berthon, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, A. Busata, M.A. Ciocci, Ph. Delcroz, G. Fouque, R. Guirlet, C. Lemoine, P. Matricon, M. Maubras, R. Morano, P. Miné, J.Y. Parey, P. Poilleux, A. Rougé, C. Roy, M. Rumpf, H. Videau, I. Videau, C. Violet, D. Zwierski, D.J. Candlin, A.J. Main, A. Conti, G. Parrini, E. Scarlini, W. Burley, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. Corradi, G. De Ninno, B. D'ettorre-Piazzoli, B. Dulach, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, M. Pallotta, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, J. Wells, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, W. Heyde, E.E. Kluge, J. Krause, Y. Maumary, M. Panter, A. Putzer, B. Rensch, K. Schmitt, A. Stahl, K. Tittel, M. Wunsch, G.J. Barber, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, D.N. Gentry, P. Heinson, M. MacDermott, D.G. Miller, D.R. Price, J.K. Sedgbeer, G. Taylor, A.P. White, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, D. Pollmann, B. Renk, S. Roehn, M. Schmelling, K. Schmitz, F. Steeg, J-P. Albanese, J-J. Aubert, G. Barrand, R. Bazzoli, C. Benchouk, A. Bonissent, A. Ealet-Grousset, F. Etienne, Y. Gally, E. Kajfasz, R. Nacasch, P. Payre, B. Pietrzyk, J. Raguet, Z. Qian, H. Becker, W. Blum, T. Boulos, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. Aioun, J.N. Albert, Ch. Arnault, G. De Bouard, J. Boucrot, O. Callot, R. Chase, A. Cordier, M. Davier, M. Dialinas, A. Ducorps, D. Fournier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, P. Jean, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.M. Lutz, P. Marotte, J.J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, A. Bechini, F. Bosi, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foa, E. Focardi, F. Forti, S. Galeotti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, D. Passuello, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, N.M. Stewart, J.A. Strong, R.M. Thomas, T. Wildish, E.H. Bellamy, J. Bizzel, D.R. Botterill, R.W. Clifft, I.F. Corbett, T.R. Edgecock, M. Edwards, J.S.M. Fisher, J. Harvey, D.L. Hill, E. Holtom, T.J. Jones, S. Madani Bozorg, G. McPherson, D.R. Moore, M. Morrissey, A. Nichols, P.R. Norton, D.P. Salmon, G.J. Tappern, J.C. Thompson, A. Tucker, R. Bernard, B. Bloch-Devaux, H. Desportes, J. Heitzmann, M. Jacquemet, A. Joudon, E. Locci, J.C. Lottin, S. Loucatos, P. Micolon, J. Pascual, B. Pignard, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, R. Turlay, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S.L. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, G. Gillessen, C. Grupen, H. Meinhard, E. Neugebauer, M. Olpp, W.U. Otto, M. Roschangar, U. Schäfer, R. Seibert, H. Seywerd, K. Stupperich, L. Wurmbach, B. Gobbo, F. Liello, A. Mansutti, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, A. Caldwell, D. Cinabro, M. Convery, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, J. Izen, R.C. Jared, R.P. Johnson, B.W. LeClaire, T.C. Meyer, D. Muller, Y.B. Pan, T. Parker, J.R. Pater, S. Ritz, Y. Saadi, V. Sharma, D. Strom, J.A. Wear, F.V. Weber, E. Wicklund, Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Mastrogiacomo, A, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Chen, Y, Hu, H, Huang, D, Jiang, Y, Lin, J, Liu, R, Lu, W, Ruan, T, Wang, T, Wang, X, Wu, D, Wu, W, Xie, Y, Xu, D, Xu, R, Xu, Y, Yan, W, Ye, M, Zhang, J, Zhao, H, Zhao, W, Albrecht, H, Ball, A, Bird, F, Blucher, E, Charity, T, Drevermann, H, Dydak, F, Ferroluzzi, M, Garrido, L, Grab, C, Grub, R, Hagelberg, R, Haywood, S, Ivesdal, B, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lazeyras, P, Lehraus, I, Lofstedt, B, Lohse, T, Luke, D, Marchioro, A, Mato, P, Maugain, Jm, May, J, Mertens, V, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Pintus, R, Pregernig, L, Price, M, Ranjard, F, Richstein, J, Richter, W, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schilly, P, Schlatter, D, Stefanini, G, Takashima, M, Talby, M, Tarle, Jc, Taureg, H, Tejessy, W, Verweij, H, Wachsmuth, H, Wahl, H, Wheeler, S, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Brossard, M, Chadelas, R, Daudon, F, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Prat, J, Proriol, J, Prulhiere, F, Bertelsen, H, Hansen, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Lindahl, A, Madsen, B, Mollerud, R, Nilsson, B, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Bernard, D, Bercher, M, Berthon, U, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Busata, A, Ciocci, Ma, Delcroz, P, Fouque, G, Guirlet, R, Lemoine, C, Matricon, P, Maubras, M, Morano, R, Mine, P, Parey, Jy, Poilleux, P, Rouge, A, Roy, C, Rumpf, M, Videau, H, Videau, I, Violet, C, Zwierski, D, Candlin, Dj, Main, Aj, Conti, A, Parrini, G, Scarlini, E, Burley, W, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Corradi, G, Deninno, G, Dettorrepiazzoli, B, Dulach, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Pallotta, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Flavell, Aj, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Martin, Dj, Oneill, R, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Wells, J, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Heyde, W, Kluge, Ee, Krause, J, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Schmitt, K, Stahl, A, Tittel, K, Wunsch, M, Barber, Gj, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Gentry, Dn, Heinson, Ap, Macdermott, M, Miller, Dg, Price, Dr, Sedgbeer, Jk, Taylor, G, White, Ap, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Pollmann, D, Renk, B, Roehn, S, Schmelling, M, Schmitz, K, Steeg, F, Albanese, Jp, Aubert, Jj, Barrand, G, Bazzoli, R, Benchouk, C, Bonissent, A, Ealetgrousset, A, Etienne, F, Gally, Y, Kajfasz, E, Nacasch, R, Payre, P, Pietrzyk, B, Raguet, J, Qian, Z, Becker, H, Blum, W, Boulos, T, Cattaneo, P, Comin, M, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Stimpfl, G, Thomas, J, Waltermann, G, Aioun, G, Albert, Jn, Arnault, C, Debouard, G, Boucrot, J, Callot, O, Chase, R, Cordier, A, Davier, M, Dialinas, M, Ducorps, A, Fournier, D, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Jean, P, Journe, V, Kim, Dw, Lefrancois, J, Lloydowen, D, Lutz, Am, Marotte, P, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bechini, A, Bosi, F, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Galeotti, S, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Passuello, D, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Bj, Green, Mg, Mckemey, Ak, March, Pv, Medcalf, T, Saich, Mr, Stewart, Nm, Strong, Ja, Thomas, Rm, Wildish, T, Bellamy, Eh, Bizzell, J, Botterill, Dr, Clifft, Rw, Corbett, If, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Hill, Dl, Holtom, E, Jones, Tj, Bozorg, Sm, Mcpherson, G, Moore, Dr, Morrissey, M, Nichols, A, Norton, Pr, Salmon, Dp, Tappern, Gj, Thompson, Jc, Tucker, A, Bernard, R, Blochdevaux, B, Desportes, H, Heitzmann, J, Jacquemet, M, Joudon, A, Locci, E, Lottin, Jc, Loucatos, S, Micolon, P, Pascual, J, Pignard, B, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Turlay, R, Ashman, Jg, Booth, Cn, Buttar, C, Carney, R, Cartwright, Sl, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, Lf, Brandt, S, Burkhardt, H, Gillessen, G, Grupen, C, Meinhard, H, Neugebauer, E, Olpp, M, Otto, Wu, Roschangar, M, Schafer, U, Seibert, R, Seywerd, H, Stupperich, K, Wurmbach, L, Gobbo, B, Liello, F, Mansutti, A, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Caldwell, A, Cinabro, D, Convery, M, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Izen, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Meyer, Tc, Muller, D, Pan, Yb, Parker, T, Pater, Jr, Ritz, S, Saadi, Y, Sharma, V, Strom, D, Wear, Ja, Weber, Fv, Wicklund, E, Wu, Sl, Xue, St, Zobernig, G., Milotti, Edoardo, and Aleph, Collaboration
Subjects: Physics, Flexibility (engineering), Nuclear and High Energy Physics, Aleph, high-energy physics, Process modeling, Process (engineering), business.industry, Software development, LEP, Automation, particle detectors, Data acquisition, Detectors and Experimental Techniques, Software engineering, business, Enforcement, Instrumentation, particle detector
Abstract: Process-centred Software Engineering Environments (PSEE) are the most recent generation of environments supporting software development activities. Most of PSEE are based on mechanisms promoting enforcement and automation of process activities. In this kind of mechanisms the process models are prescribed in a detailed and complete way. But the experience shows that supporting processes is more concerned with the flexibility of guidance offered during the process performance than with enforcement of a collection of predefined process models. In this paper, we present a solution to support strategic processes in a PSEE by providing a flexible guidance during process enactment.
Published: 1990

23. Search For the Neutral Higgs Boson From Z0 Decay In the Higgs Mass Range Between 11 and 24 Gev

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, S. Jin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, Z. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, T.H. Burnett, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R.ST. Denis, D. Schlatter, M. Takashima, M. talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. de Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, D. Courvoisier, F. Etienne, E. Matsinos, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, G. Waltermann, V. Bertin, G. de Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Aleph, Particle physics, Range (particle radiation), Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Supersymmetry, Nuclear physics, Higgs boson, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, Boson
Abstract: A search for the neutral Higgs boson in the mass range above 11 GeV (above the H 0 →b b threshold), using the process Z0→H0e+e−, Z0→H0μ+μ− and Z 0 → H 0 v v , is performed on data collected by the ALEPH detector corresponding to about 25 000 events of Z0→ hadrons. Combining all these processes, the mass range excluded is 11 GeV at 95% CL. Together with a previously published result from ALEPH, the mass range excluded is 32 MeV to 24 GeV at 95% CL. This result also extends the excluded mass region for neutral Higgs bosons from supersymmetry.
Published: 1990

24. The spatial resolution of the ALEPH TPC

Author: Edoardo Milotti, W. Blum, J. Conway, Ps Marrocchesi, A. Vayaki, J. May, D. F. Cowen, L. Rolandi, M. Takashima, S. Xue, R. P. Johnson, D. Schlatter, U. Larsson, I. Lehraus, A. Lusiani, G. Stefanini, W. Tejessy, Stephen Haywood, J. Richstein, D. Cinabro, Thomas Lohse, A. Jahn, Robert Richter, R. Settles, S. R. Amendolia, B. Gobbo, J. F. Boudreau, L.A.T. Bauerdick, S. Roehn, Matthias Kasemann, J. A. Wear, Sau Lan Wu, F. Steeg, E. Blucher, F. Fidecaro, Maria Agnese Ciocci, B. W. LeClaire, M. Schmelling, Juergen Thomas, A. Minten, T. Barczewski, A. W. Halley, W. Witzeling, Amendolia, Sr, Barczewski, T, Bauerdick, Lat, Blucher, E, Blum, W, Boudreau, J, Cinabro, D, Ciocci, Ma, Conway, J, Cowen, Df, Fidecaro, F, Gobbo, B, Halley, A, Haywood, S, Jahn, A, Johnson, R, Kasemann, M, Larsson, U, Leclaire, B, Lehraus, I, Lohse, T, Lusiani, Alberto, Marrocchesi, P, May, J, Milotti, E, Minten, A, Richstein, J, Richter, R, Roehn, S, Rolandi, Luigi, Schlatter, D, Schmelling, M, Settles, R, Stefanini, G, Steeg, F, Takashima, M, Tejessy, W, Thomas, J, Vayaki, A, Wear, J, Witzeling, W, Wu, Sl, and Xue, S.
Subjects: Physics, Nuclear and High Energy Physics, Aleph, Accuracy and precision, Optics, Time projection chamber, business.industry, Resolution (electron density), Limit (mathematics), business, Instrumentation, Image resolution
Abstract: The present understanding of the factors which limit the rφ measurement accuracy of the ALEPH time projection chamber is outlined. The resolution for high-momentum tracks is shown to be dominated by the E × B and angular affects.
Published: 1989

25. Management and Control of the Read Out Processors (tpps) of the Aleph Time Projection Chamber

Author: L.A.T. Bauerdick, E. Blucher, D. Schlatter, I. Lehraus, Edoardo Milotti, J. F. Boudreau, Matthias Kasemann, A. Vayaki, F. Steeg, Juergen Thomas, D.F. Cowen, B. W. LeClaire, M. Schmelling, A. Minten, F. Morsani, J. S. Conway, B. Lofstedt, A. Jahn, Robert Richter, S. Galeotti, B. Gobbo, M. Takashima, R. P. Johnson, U. Larsson, J. Richstein, J. A. Wear, A. W. Halley, W. Witzeling, S. Xue, Salvator Roberto Amendolia, W. Blum, A. Lusiani, Sau Lan Wu, W. Tejessy, D. Passuello, Stephen Haywood, Maria Agnese Ciocci, T. Barczewski, Thomas Lohse, P. S. Marrochesi, F. Fidecaro, S. Roehn, D. Cinabro, L. Rolandi, R. Settles, G. Stefanini, J. May, S. R., Amendolia, T., Barczewski, L. A. T., Bauerdick, E., Blucher, W., Blum, J., Boudreau, D., Cinabro, M. A., Ciocci, J., Conway, D. F., Cowen, F., Fidecaro, S., Galeotti, B., Gobbo, A., Jahn, R., Johnson, M., Kasemann, A., Halley, S., Haywood, U., Larsson, B., Leclaire, I., Lehrau, B., Lofstedt, T., Lohse, A., Lusiani, P. S., Marrochesi, J., May, Milotti, Edoardo, A., Minten, F., Morsani, D., Passuello, J., Richstein, R., Richter, S., Roehn, L., Rolandi, D., Schlatter, M., Schmelling, R., Settle, G., Stefanini, F., Steeg, M., Takashima, W., Tejessy, J., Thoma, A., Vayaki, J., Wear, W., Witzeling, S. L., Wu, S., Xue, Amendolia, Sr, Barczewski, T, Bauerdick, Lat, Blucher, E, Blum, W, Boudreau, J, Cinabro, D, Ciocci, Ma, Conway, J, Cowen, Df, Fidecaro, F, Galeotti, S, Gobbo, B, Jahn, A, Johnson, R, Kasemann, M, Halley, A, Haywood, S, Larsson, U, Leclaire, B, Lehraus, I, Lofstedt, B, Lohse, T, Lusiani, Alberto, Marrocchesi, P, May, J, Milotti, E, Minten, A, Morsani, F, Passuello, D, Richstein, J, Richter, R, Roehn, S, Rolandi, Luigi, Schlatter, D, Schmelling, M, Settles, R, Stefanini, G, Steeg, F, Takashima, M, Tejessy, W, Thomas, J, Vayaki, A, Wear, J, Witzeling, W, Wu, Sl, and Xue, S.
Subjects: Nuclear and High Energy Physics, Aleph, Time projection chamber, Computer science, business.industry, Exception handling, Electrical engineering, law.invention, Set (abstract data type), Microprocessor, Data acquisition, Software, Nuclear Energy and Engineering, law, Electrical and Electronic Engineering, Projection (set theory), business, Computer hardware
Abstract: The readout of the Aleph time projection chamber (TPC) relies on a set of 72 time projection processors (TPPs), which are based on a Motorola 68020 microprocessor running a real-time operating system. The advanced processing capabilities of the TPPs allow them to perform in parallel a number of tasks, both during and outside of data acquisition, which are outlined. The management and control of such a large number of intelligent devices is presented. The discussion covers the hardware configuration of the TPPs; the software running the TPPs; their management, status, and control; exception handling and message logging; and the TPP monitoring tasks. >
Published: 1989

26. THE FASTBUS READ-OUT SYSTEM FOR THE ALEPH TIME PROJECTION CHAMBER

Author: Ps Marrocchesi, A. Vayaki, J. A. Wear, J. S. Conway, A. Jahn, Robert Richter, J. F. Boudreau, Edoardo Milotti, B. Gobbo, L. Rolandi, D. Schlatter, W. Blum, U. Larsson, M. Convery, L.A.T. Bauerdick, T. Barczewski, F. Steeg, W. Tejessy, G. Stefanini, D. Cinabro, A. Lusiani, Thomas Lohse, R. Settles, S. Roehn, Juergen Thomas, W. Witzeling, Matthias Kasemann, F. Fidecaro, J. May, R.C. Jared, E. Blucher, J. Richstein, A. Minten, M. Takashima, D. F. Cowen, B. W. LeClaire, I. Lehraus, R. P. Johnson, M. Schmelling, Salvator Roberto Amendolia, S. Xue, Sau Lan Wu, Maria Agnese Ciocci, A. W. Halley, Stephen Haywood, Amendolia, Sr, Barczewski, T, Bauerdick, Lat, Blucher, E, Boudreau, J, Blum, W, Cinabro, D, Conway, J, Convery, M, Ciocci, Ma, Cowen, Df, Fidecaro, F, Gobbo, B, Jahn, A, Jared, Rc, Johnson, R, Kasemann, M, Halley, A, Haywood, S, Larsson, U, Leclaire, B, Lehraus, I, Lohse, T, Lusiani, Alberto, Marrocchesi, P, May, J, Milotti, E, Minten, A, Richstein, J, Richter, R, Roehn, S, Rolandi, Luigi, Schlatter, D, Schmelling, M, Settles, R, Stefanini, G, Steeg, F, Takashima, M, Tejessy, W, Thomas, J, Vayaki, A, Wear, J, Witzeling, W, Wu, Sl, Xue, S., S. R., Amendolia, T., Barczewski, L. A. T., Bauerdick, E., Blucher, J., Boudreau, W., Blum, D., Cinabro, J., Conway, M., Convery, M. A., Ciocci, D. F., Cowen, F., Fidecaro, B., Gobbo, A., Jahn, R. C., Jared, R., Johnson, M., Kasemann, A., Halley, S., Haywood, U., Larsson, B., Leclaire, I., Lehrau, T., Lohse, A., Lusiani, P. S., Marrocchesi, J., May, Milotti, Edoardo, A., Minten, J., Richstein, R., Richter, S., Roehn, L., Rolandi, D., Schlatter, M., Schmelling, R., Settle, G., Stefanini, F., Steeg, M., Takashima, W., Tejessy, J., Thoma, A., Vayaki, J., Wear, W., Witzeling, S. L., Wu, and S., Xue
Subjects: Physics, Nuclear and High Energy Physics, Aleph, Time projection chamber, Physics::Instrumentation and Detectors, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Tracking (particle physics), Data acquisition, Nuclear Energy and Engineering, Nuclear electronics, Control system, Electronic engineering, Electronics, Electrical and Electronic Engineering, business, Computer hardware
Abstract: The readout system for the Aleph central tracking detector, a large time projection chamber (TPC), consists of more than 100 FASTBUS crates with approximately 1000 FASTBUS modules. The detector and its associated electronics are briefly presented, followed by a more detailed description of the readout and control system. The discussion covers the sector readout, electronics calibration, front-end data acquisition, data pipelining, and service request handling. Experiences with the system are discussed. >
Published: 1989

27. Measurement of α from the structure of particle clusters produced in hadronic Z decays

Author: Décamp, D, Deschizeaux, B, Goy, C, Lees, J P, Minard, M N, Alemany, R, Crespo, J M, Delfino, M C, Fernández, E, Gaitan, V, Garrido, L, Mato, P, Miquel, R, Mir, L M, Orteu, S, Pacheco, A, Perlas, J A, Tubau, E, Catanesi, M G, Creanza, D, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, W B, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Brown, D, Burnett, T H, Drevermann, H, Dydak, Friedrich, Forty, Roger W, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, Gottfried, Knobloch, J, Lacourt, A, Lehraus, Ivan, Lohse, T, Lüke, D, Marchioro, A, Martínez, M, May, J, Menary, S R, Minten, Adolf G, Miotto, A, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, von Rüden, Wolfgang, Saint-Denis, R, Schlatter, W D, Takashima, M, Talby, M, Tejessy, W, Wachsmuth, H W, Wasserbaech, S R, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Falvard, A, El-Fellous, R, Gay, P, Harvey, J, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Stimpfl, G, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Nielsen, E R, Nilsson, B S, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Fouque, G, Gamess, A, Guirlet, R, Lemoine, C, Matricon, P, Maubras, M, Morano, R, Miné, P, Parey, J Y, Poilleux, P, Rosowsky, A, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Candlin, D J, Veitch, E, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Chiarella, V, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Massimo-Brancaccio, F, Murtas, F, Murtas, G P, Nicoletti, G, Passalacqua, L, Pepé-Altarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J A, Lynch, J G, Morton, W T, Raine, C, Scarr, J M, Smith, K, Thompson, A S, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Heyde, W, Kluge, E E, Maumary, Y, Putzer, A, Rensch, B, Schmitt, K, Stahl, A, Tittel, K, Wunsch, M, Belk, A T, Beuselinck, R, Binnie, David M, Cameron, W, Cattaneo, M, Dornan, Peter J, Dugeay, S, Greene, A M, Hassard, J F, Lieske, N M, Patton, S J, Payne, D G, Phillips, D G, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Patel, A D, Rowlingson, B S, Sloan, Terence, Snow, S W, Whelan, E P, Barczewski, T, Bauerdick, L A T, Kleinknecht, K, Renk, B, Roehn, S, Schmelling, M, Schmidt, H, Steeg, F, Albanese, J P, Aubert, Jean-Jacques, Benchouk, C, Bernard, V, Bonissent, A, Courvoisier, D, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, Walter, Cattaneo, Paolo Walter, Cowan, G D, Dehning, Bernd, Dietl, H, Fernández-Bosman, M, Hansl-Kozanecka, Traudl, Jahn, A, Kozanecki, Witold, Lange, E, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Schröder, J, Schwarz, A, Settles, Ronald, Stierlin, U, Thomas, J, Wolf, G, Bertin, V, De Bouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, J F, Heusse, P, Janot, P, Journé, V, Kim, D W, Lefrançois, J, Lutz, A M, Veillet, J J, Videau, I, Zhang, Z, Zomer, F, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M A, Dell'Orso, R, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, M A, Ligabue, F, Lusiani, A, Mannelli, E B, Marrocchesi, P S, Messineo, A, Moneta, L, Palla, Fabrizio, Sanguinetti, G, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Vannini-Castaldi, C, Venturi, A, Verdini, P G, Walsh, J, Carter, J M, Green, M G, March, P V, Medcalf, T, Quazi, I S, Saich, M R, Strong, J, Thomas, R M, West, L R, Wildish, T, Botterill, David R, Clifft, R W, Edgecock, T R, Edwards, M, Fisher, S M, Jones, T J, Norton, P R, Salmon, D P, Thompson, J C, Bernard, R, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Lançon, E, Locci, E, Loucatos, Sotirios S, Monnier, E, Pérez, P, Perrier, F, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Schwindling, J, Ashman, John Gavin, Booth, C N, Buttar, C M, Carney, R E, Cartwright, S L, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martín, J, Parker, D, Reeves, P, Thompson, L F, Brandt, S, Burkhardt, H, Grupen, Claus, Meinhard, H, Mirabito, L, Neugebauer, E, Schäfer, U, Seywerd, H C J, Apollinari, G, Giannini, G, Gobbo, B, Liello, F, Rolandi, Luigi, Stiegler, U, Bellantoni, L, Boudreau, J F, Cinabro, D, Conway, J S, Cowen, D F, De Weerd, A J, Feng, Z, Ferguson, D P S, Gao, Y S, Grahl, J, Harton, J L, Hilgart, J M, Jacobsen, J E, Jared, R C, Johnson, R P, LeClaire, B W, Pater, J R, Saadi, Y, Sharma, V, Walsh, M A, Wear, J A, Weber, F V, Whitney, M H, Wu Sau Lan, Zho, Z L, Zobernig, G, D., Decamp, B., Deschizeaux, C., Goy, J. 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Subjects: Physics, Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, Electron–positron annihilation, Hadron, Asymmetry, Resonance (particle physics), Renormalization, Nuclear physics, Particle, High Energy Physics::Experiment, Invariant mass, Event (particle physics), Particle Physics - Experiment, media_common
Abstract: Using 106 000 hadronic events obtained with the ALEPH detector at LEP at energies close to the Z resonance peak, the strong coupling constant αs is measured by an analysis of energy-energy correlations (EEC) and the global event shape variables thrust, C-parameter and oblateness. It is shown that the theoretical uncertainties can be significantly reduced if the final state particles are first combined in clusters using a minimum scaled invariant mass cut, Ycut, before these variables are computed. The combined result from all shape variables of pre-clustered events is αs(MZ2 = 0.117±0.005 for a renormalization scale μ= 1 2 M Z . For μ values between MZ and the b-quark mass, the result changes by −0.009+0.006.
Published: 1991

28. MEASUREMENT OF THE PRODUCTION-RATES OF ETA AND ETA' IN HADRONIC-Z DECAYS

Author: BUSKULIC D, DECAMP D, GOY C, LEES JP, MINARD MN, MOURS B, ALEMANY R, ARIZTIZABAL F, COMAS P, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, PACHECO A, PASCUAL A, CREANZA D, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LIN J, LOU J, QIAO C, WANG T, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BURNETT TH, DREVERMANN H, FORTY RW, HAGELBERG R, HARVEY J, HAYWOOD S, HILGART J, JACOBSEN R, JOST B, KNOBLOCH J, LANCON E, LEHRAUS I, LOHSE T, LUSIANI, Alberto, MARTINEZ M, MATO P, MATTISON T, MEINHARD H, MENARY S, MEYER T, MINTEN A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, PERLAS JA, RANJARD F, REDLINGER G, ROTH A, ROTHBERG J, RUAN T, SAICH M, SCHLATTER D, SCHMELLING M, SEFKOW F, TEJESSY W, WACHSMUTH H, WIEDENMANN W, WILDISH T, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BADAUD F, BARDADINOTWINOWSKA M, BENCHEIKH AM, ELFELLOUS R, FALVARD A, GAY P, GUICHENEY C, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PIETRZYK B, PRORIOL J, PRULHIERE F, STIMPFL G, FEARNLEY T, HANSEN JD, HANSEN JR, HANSEN PH, MOLLERUD R, NILSSON BS, EFTHYMIOPOULOS I, KYRIAKIS A, SIMOPOULOU E, VAYAKI A, ZACHARIADOU K, BADIER J, BLONDEL A, BONNEAUD G, BRIENT JC, FOUQUE G, GAMESS A, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, PARSONS MI, VEITCH E, MONETA L, PARRINI G, CORDEN M, GEORGIOPOULOS C, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, WASSERBAECH S, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ALTOON B, BOYLE O, COLRAIN P, TENHAVE I, LYNCH JG, MAITLAND W, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, COLLING DJ, DORNAN PJ, DUGEAY S, GREENE AM, HASSARD JF, LIESKE NM, PATTON SJ, PAYNE DG, PHILLIPS MJ, SEDGBEER JK, TOMALIN IR, WRIGHT AG, KNERINGER E, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, JACKSON D, KEEMER NR, NUTTALL M, PATEL A, SLOAN T, SNOW SW, WHELAN EP, BARCZEWSKI T, KLEINKNECHT K, RAAB J, RENK B, ROEHN S, SANDER HG, SCHMIDT H, STEEG F, WALTHER SM, WOLF B, AUBERT JJ, BENCHOUK C, BERNARD V, BONISSENT A, CARR J, COYLE P, DRINKARD J, ETIENNE F, PAPALEXIOU S, PAYRE P, QIAN Z, ROUSSEAU D, SCHWEMLING P, TALBY M, ADLUNG S, BAUER C, BLUM W, BROWN D, COWAN G, DEHNING B, DIETL H, DYDAK F, FERNANDEZBOSMAN M, FRANK M, HALLEY AW, LAUBER J, LUTJENS G, LUTZ G, MANNER W, RICHTER R, SCHRODER J, SCHWARZ AS, SETTLES R, SEYWERD H, STIERLIN U, STIEGLER U, STDENIS R, TAKASHIMA M, THOMAS J, WOLF G, BERTIN V, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GRIVAZ JF, HEUSSE P, JANOT P, KIM DW, LEDIBERDER F, LEFRANCOIS J, LUTZ AM, SCHUNE MH, VEILLET JJ, VIDEAU I, ZHANG Z, ZOMER F, ABBANEO D, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, CARPINELLI M, CIOCCI MA, DELLORSO R, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GIASSI A, GIORGI MA, MANNELLI EB, MARROCCHESI PS, MESSINEO A, PALLA F, RIZZO G, SANGUINETTI G, STEINBERGER J, TENCHINI R, TONELLI G, TRIGGIANI G, VANNINI C, VENTURI A, VERDINI PG, WALSH J, CARTER JM, GREEN MG, MARCH PV, MIR LM, MEDCALF T, QUAZI IS, STRONG JA, WEST LR, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, BLOCHDEVAUX B, COLAS P, KOZANECKI W, LEMAIRE MC, LOCCI E, LOUCATOS S, MONNIER E, PEREZ P, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, SCHWINDLING J, MOHAND DS, VALLAGE B, JOHNSON RP, LITKE AM, TAYLOR G, WEAR J, ASHMAN JG, BABBAGE W, BOOTH CN, BUTTAR C, CARNEY RE, CARTWRIGHT S, COMBLEY F, HATFIELD F, REEVES P, THOMPSON LF, BARBERIO E, BRANDT S, GRUPEN C, MIRABITO L, SCHAFER U, GANIS G, GIANNINI G, GOBBO B, RAGUSA F, BELLANTONI L, CINABRO D, CONWAY JS, COWEN DF, FENG Z, FERGUSON DPS, GAO YS, GRAHL J, HARTON JL, JARED RC, LECLAIRE BW, LISHKA C, PAN YB, PATER JR, PUSZTASZERI JF, SAADI Y, SHARMA V, SCHMITT M, SHI ZH, WALSH AM, WEBER FV, WHITNEY MH, WU SL, WU X, ZOBERNIG G, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S.t. 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P., Lee, M. N., Minard, B., Mour, R., Alemany, F., Ariztizabal, P., Coma, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., A., Pacheco, A., Pascual, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, R., Hagelberg, J., Harvey, S., Haywood, J., Hilgart, R., Jacobsen, B., Jost, J., Knobloch, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, T., Mattison, H., Meinhard, S., Menary, T., Meyer, A., Minten, R., Miguel, H. G., Moser, J., Nash, P., Palazzi, J. A., Perla, F., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, F., Sefkow, W., Tejessy, H., Wachsmuth, W., Wiedenmann, T., Wildish, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, B., Pietrzyk, J., Proriol, F., Prulhière, G., Stimpfl, T., Fearnley, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, A., Kyriaki, E., Simopoulou, A., Vayaki, K., Zachariadou, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, M. 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Subjects: Physics, Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, Electron–positron annihilation, Monte Carlo method, Hadron, LEP, Nuclear physics, Fragmentation (mass spectrometry), Fragmentation function, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, Particle Physics - Experiment, Production rate
Abstract: The decays eta --> gammagamma and eta' --> etapi+pi- have been observed in hadronic decays of the Z produced at LEP. The fragmentation functions of both the eta and eta' have been measured. The measured multiplicities for x > 0.1 are 0.298 +/- 0.023 +/- 0.021 and 0.068 +/- 0.018 +/- 0.016 for eta and eta' respectively. While the fragmentation function for the eta is fairly well described by the JETSET Monte Carlo, it is found that the production rate of the eta' is a factor of four less than the corresponding prediction.
Published: 1992

29. Improved measurements of electroweak parameters from Z decays into fermion pairs

Author: DECAMP D, DESCHIZEAUX B, GOY C, LEES JP, MINARD MN, ALEMANY R, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, MIR LM, PACHECO A, CATANESI MG, CREANZA D, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LIN J, LOU J, QIAO C, RUAN T, WANG T, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BIRD F, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BROWN D, BURNETT TH, DREVERMANN H, FORTY RW, GRAB C, HAGELBERG R, HAYWOOD S, HILGART J, JOST B, KASEMANN M, KNOBLOCH J, LACOURT A, LANCON E, LEHRAUS I, LOHSE T, LUSIANI A, MARCHIORO A, MARTINEZ M, MATO P, MENARY S, MINTEN A, MIOTTO A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, RANJARD F, REDLINGER G, ROTH A, ROTHBERG J, ROTSCHEIDT H, SAICH M, DENIS RS, SCHLATTER D, TAKASHIMA M, TALBY M, TEJESSY W, WACHSMUTH H, WASSERBAECH S, WHEELER S, WIEDENMANN W, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BARDADINOTWINOWSKA M, ELFELLOUS R, FALVARD A, GAY P, HARVEY J, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PRORIOL J, PRULHIERE F, STIMPFL G, HANSEN JD, HANSEN JR, HANSEN PH, MOLLERUD R, NILSSON BS, EFTHYMIOPOULOS I, SIMOPOULOU E, VAYAKI A, BADIER J, BLONDEL A, BONNEAUD G, BOUROTTE J, BRAEMS F, BRIENT JC, FOUQUE G, GAMESS A, GUIRLET R, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, VEITCH E, PARRINI G, CORDEN M, GEORGIOPOULOS C, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, NICOLETTI G, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ZOGRAFOU P, ALTOON B, BOYLE O, HALLEY AW, TENHAVE I, HEARNS JL, LYNCH JG, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER 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A, Moneta, L, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P, Walsh, J, Carter, J, Green, M, March, P, Medcalf, T, Quazi, I, Strong, J, Thomas, R, West, L, Wildish, T, Botterill, D, Clifft, R, Edgecock, T, Edwards, M, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Blochdevaux, B, Colas, P, Klopfenstein, C, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perlas, J, Perrier, F, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Vallage, B, Ashman, J, Booth, C, Buttar, C, Carney, R, Cartwright, S, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, L, Barberio, E, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Mirabito, L, Schafer, U, Seywerd, H, Apollinari, G, Giannini, G, Gobbo, B, Liello, F, Ragusa, F, Rolandi, L, Stiegler, U, Bellantoni, L, Cinabro, D, Conway, J, Cowen, D, Feng, Z, Ferguson, D, Grahl, J, Harton, J, Jacobsen, J, Jared, R, Johnson, R, Leclaire, B, Pater, J, Saadi, Y, Sharma, V, Shi, Z, Tang, Y, Walsh, A, Wear, J, Weber, F, Whitney, M, Wu, S, Zobernig, G, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonyicini, F., Bossi, J., Boudreau, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lan�on, I., Lehrau, T., Lohse, A., Lusiani, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, M., Saich, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, R., Fellou, A., Falvard, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhi�re, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., M�llerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Roug�, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., L�tjen, G., Lutz, W., M�nner, Y., Pan, R., Richter, J., Schr�der, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Diberder, J., Lefran�oi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Fo�, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, U., Sch�fer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Claire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, G., Zobernig, Lees, Jp, Minard, Mn, Crespo, Jm, Mir, Lm, Catanesi, Mg, Atwood, Wb, Bauerdick, Lat, Burnett, Th, Forty, Rw, Lusiani, Alberto, Moser, Hg, Montret, Jc, Hansen, Jd, Hansen, Jr, Hansen, Ph, Brient, Jc, Candlin, Dj, Murtas, Gp, Halley, Aw, Hearns, Jl, Lynch, Jg, Morton, Wt, Scarr, Jm, Turnbull, Rm, Kluge, Ee, Belk, At, Binnie, Dm, Dornan, Pj, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Keemer, Nr, Snow, Sw, Whelan, Ep, Sander, Hg, Walther, Sm, Albanese, Jp, Aubert, Jj, Grivaz, Jf, Kim, Dw, Lutz, Am, Veillet, Jj, Amendolia, Sr, Ciocci, Ma, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Verdini, Pg, Carter, Jm, Green, Mg, March, Pv, Strong, Ja, Thomas, Rm, West, Lr, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Perlas, Ja, Renardy, Jf, Schuller, Jp, Ashman, Jg, Booth, Cn, Thompson, Lf, Cowen, Df, Ferguson, Dp, Harton, Jl, Jacobsen, Je, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Pater, Jr, Shi, Zh, Tang, Yh, Walsh, Am, Wear, Ja, Weber, Fv, Whitney, Mh, Wu, Sl, and Zobernig, G.
Subjects: Quark, Physics, Particle physics, Physics and Astronomy (miscellaneous), Electron–positron annihilation, High Energy Physics::Phenomenology, Electroweak interaction, Elementary particle, Weinberg angle, Fermion, ALEPH detector, Nuclear physics, High Energy Physics::Experiment, Neutrino, Engineering (miscellaneous), Particle Physics - Experiment, Lepton
Abstract: The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs collected with the ALEPH detector at LEP. Assuming lepton universality, M(Z) = (91.182 +/- 0.009exp +/- 0.020L;P) GeV, GAMMA(Z) = (2484 +/- 17) MeV, sigma(had)0 = (41.44 +/- 0.36) nb, and GAMMA(had)/GAMMA(ll) = 21.00 +/- 0.20. The corresponding number of light neutrino species is 2.97 +/- 0.07. The forward-backward asymmetry in leptonic decays is used to determine the ratio of vector to axial-vector coupling constants of leptons: g(V)2(M(Z)2)/g(A)2(M(Z)2) = 0.0072 +/- 0.0027. Combining these results with ALEPH results on quark charge and bbBAR asymmetries, and tau-polarization, sin2 theta(W)(M(Z)2) = 0.2312 +/- 0.0018. In the context of the Minimal Standard Model, limits are placed on the top-quark mass.
Published: 1992

30. Measurement of the absolute luminosity with the ALEPH detector

Author: DECAMP D, DESCHIZEAUX B, GOY C, LEES JP, MINARD MN, ALEMANY R, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, MIR LM, PACHECO A, CATANESI MG, CREANZA D, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LIN J, LOU J, QIAO C, RUAN T, WANG T, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BIRD F, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BROWN D, BURNETT TH, DREVERMANN H, FORTY RW, GRAB C, HAGELBERG R, HAYWOOD S, HILGART J, JOST B, KASEMANN M, KNOBLOCH J, LACOURT A, LANCON E, LEHRAUS I, LOHSE T, MARCHIORO A, MARTINEZ M, MATO P, MENARY S, MINTEN A, MIOTTO A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, RANJARD F, REDLINGER G, ROTH A, ROTHBERG J, ROTSCHEIDT H, SAICH M, SCHLATTER D, SCHMELLING M, TAKASHIMA M, TEJESSY W, WACHSMUTH H, WASSERBAECH S, WIEDENMANN W, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BADAUD F, BARADADINOTWINOWSKA M, BENCHEIKH AM, ELFELLOUS R, FALVARD A, GAY P, GUICHENEY C, HARVEY J, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PRORIOL J, PRULHIERE F, STIMPFL G, BERTELSEN H, HANSEN F, HANSEN JD, HANSEN JR, HANSEN PH, LINDHAL A, MOLLERUD R, NILSSON BS, PETERSEN G, EFTHYMIOPOULOS I, SIMOPOULOU E, VAYAKI A, BADIER J, BLONDEL A, BONNEAUD G, BOUROTTE J, BRAEMS F, BRIENT JC, FOUQUE G, GAMESS A, GUIRLET R, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, VEITCH E, MONETA L, PARRINI G, CORDEN M, GEORGIOPOULOS C, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ZOGRAFOU P, ALTOON B, BOYLE O, HALLEY AW, TENHAVE I, HEARNS JL, LYNCH JG, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, DORNAN PJ, DUGEAY S, GREENE AM, HASSARD JF, LIESKE NM, PATTON SJ, PAYNE DG, PHILLIPS MJ, SEDGBEER JK, TAYLOR G, TOMALIN IR, WRIGHT AG, GIRTLER P, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, KEEMER NR, NUTTALL M, PATEL A, ROWLINGSON BS, SLOAN T, SNOW SW, WHELAN EP, BARCZEWSKI T, KLEINKNECHT K, RAAB J, RENK B, ROEHN S, SANDER HG, SCHMIDT H, STEEG F, WALTHER SM, WOLF B, AUBERT JJ, BENCHOUK C, BERNARD V, BONISSENT A, CARR J, COYLE P, DRINKARD J, ETIENNE F, PAPALEXIOU S, PAYRE P, PIETRZYK B, QIAN Z, ROUSSEAU D, SCHWEMLING P, TALBY M, BECKER H, BLUM W, CATTANEO P, COWAN G, DEHNING B, DIETL H, DYDAK F, FERNANDEZBOSMAN M, HANSLKOZANECKA T, JAHN A, KOZANECKI W, LANGE E, LAUBER J, LUTJENS G, LUTZ G, MANNER W, PAN Y, RICHTER R, SCHRODER J, SCHWARZ AS, SETTLES R, STIERLIN U, STDENIS R, THOMAS J, WOLF G, BERTIN V, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GANIS G, GRIVAZ JF, HEUSSE P, JANOT P, KIM DW, LEDIBERDER F, LEFRANCOIS J, LUTZ AM, VEILLET JJ, VIDEAU I, ZHANG Z, ZOMER F, ABBANEO D, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, CARPINELLI M, CIOCCI MA, DELLORSO R, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GATTO C, GIASSI A, GIORGI MA, MANNELLI EB, MARROCCHESI PS, MESSINEO A, PALLA F, SANGUINETTI G, STEINBERGER J, TENCHINI R, TONELLI G, TRIGGIANI G, VANNINI C, VENTURI A, VERDINI PG, WALSH J, CARTER JM, GREEN MG, MARCH PV, MEDCALF T, QUAZI IS, STRONG JA, THOMAS RM, WEST LR, WILDISH T, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, BLOCHDEVAUX B, COLAS P, KLOPFENSTEIN C, LOCCI E, LOUCATOS S, MONNIER E, PEREZ P, PERLAS JA, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, SCHWINDLING J, VALLAGE B, ASHMAN JG, BOOTH CN, BUTTAR C, CARNEY R, CARTWRIGHT S, COMBLEY F, DINSDALE M, DOGRU M, HATFIELD F, MARTIN J, PARKER D, REEVES P, THOMPSON LF, BACH E, BARBERIO E, BRANDT S, BURKHARDT H, GILLESSEN G, GRUPEN C, HEITNER G, MEINHARD H, MIRABITO L, SCHAFER U, SEYWERD H, STUPPERICH C, TRIER H, ZEUNER V, GIANNINI G, GOBBO B, RAGUSA F, ROLANDI L, STIEGLER U, BELLANTONI L, CINABRO D, CONWAY JS, COWEN DF, FENG Z, FERGUSON DPS, GAO YS, GRAHL J, HARTON JL, JACOBSEN JE, JARED RC, JOHNSON RP, LECLAIRE BW, PAN YB, PATER JR, SAADI Y, SHARMA V, SHI ZH, TANG YH, WALSH AM, WEAR JA, WEBER FV, WHITNEY MH, WU SL, ZOBERNIG G, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S.t. Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, LUSIANI, Alberto, LIGABUE, FRANCO, Decamp, D, Deschizeaux, B, Goy, C, Lees, J, Minard, M, Alemany, R, Crespo, J, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, L, Pacheco, A, Catanesi, M, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W, Bauerdick, L, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Brown, D, Burnett, T, Drevermann, H, Forty, R, Grab, C, Hagelberg, R, Haywood, S, Hilgart, J, Jost, B, Kasemann, M, Knobloch, J, Lacourt, A, Lancon, E, Lehraus, I, Lohse, T, Lusiani, A, Marchioro, A, Martinez, M, Mato, P, Menary, S, Minten, A, Miotto, A, Miquel, R, Moser, H, Nash, J, Palazzi, P, Ranjard, F, Redlinger, 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D, Schwemling, P, Talby, M, Becker, H, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Hanslkozanecka, T, Jahn, A, Kozanecki, W, Lange, E, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Stdenis, R, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, J, Heusse, P, Janot, P, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Veillet, J, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, S, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Gatto, C, Giassi, A, Giorgi, M, Ligabue, F, Mannelli, E, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P, Walsh, J, Carter, J, Green, M, March, P, Medcalf, T, Quazi, I, Strong, J, Thomas, R, West, 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Atwood, Wb, Bauerdick, Lat, Burnett, Th, Forty, Rw, Lusiani, Alberto, Moser, Hg, Bencheikh, Am, Montret, Jc, Hansen, Jd, Hansen, Jr, Hansen, Ph, Brient, Jc, Candlin, Dj, Murtas, Gp, Halley, Aw, Hearns, Jl, Lynch, Jg, Morton, Wt, Scarr, Jm, Turnbull, Rm, Kluge, Ee, Belk, At, Binnie, Dm, Dornan, Pj, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Keemer, Nr, Snow, Sw, Whelan, Ep, Sander, Hg, Walther, Sm, Aubert, Jj, Grivaz, Jf, Kim, Dw, Lutz, Am, Veillet, Jj, Amendolia, Sr, Ciocci, Ma, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Verdini, Pg, Carter, Jm, Green, Mg, March, Pv, Strong, Ja, Thomas, Rm, West, Lr, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Perlas, Ja, Renardy, Jf, Schuller, Jp, Ashman, Jg, Booth, Cn, Thompson, Lf, Cowen, Df, Ferguson, Dp, Harton, Jl, Jacobsen, Je, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Pater, Jr, Shi, Zh, Tang, Yh, Walsh, Am, Wear, Ja, Weber, Fv, Whitney, Mh, Wu, Sl, Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S. t., D., Decamp, B., Deschizeaux, C., Goy, J. 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Subjects: Systematic error, Physics, Aleph, Particle physics, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, Detector, Bremsstrahlung, Astrophysics::Cosmology and Extragalactic Astrophysics, Calorimeter, ALEPH detector, Nuclear physics, High Energy Physics::Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Astrophysics::Galaxy Astrophysics
Abstract: We report on the absolute luminosity measurement performed with the ALEPH detector at LEP. The systematic errors of the measurements in 1990 are estimated to be 0.6% (experimental) and 0.3% (theoretical).
Published: 1992

31. A Study of Bose-Einstein Correlations In e+e- Annihilation At 91 Gev

Author: Décamp, D, Deschizeaux, B, Goy, C, Lees, J P, Minard, M N, Alemany, R, Crespo, J M, Delfino, M C, Fernández, E, Gaitan, V, Garrido, L, Mir, M L, Pacheco, A, Catanesi, M G, Creanza, D, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W B, Bauerdick, L A T, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Brown, D, Burnett, T H, Drevermann, H, Forty, Roger W, Grab, C, Hagelberg, R, Haywood, S, Hilgart, J M, Jost, B, Kasemann, M, Knobloch, J, Lacourt, A, Lançon, E, Lehraus, Ivan, Lohse, T, Lusiani, A, Marchioro, A, Martínez, M, Mato, P, Menary, S R, Minten, Adolf G, Miotto, A, Miquel, R, Moser, H G, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, Saich, M, Schlatter, W D, Schmelling, M, Takashima, M, Tejessy, W, Wachsmuth, H W, Wasserbaech, S R, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Badaud, F, Bardadin-Otwinowska, Maria, Bencheikh, A M, El-Fellous, R, Falvard, A, Gay, P, Guicheney, C, Harvey, J, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Stimpfl, G, Bertelsen, H, Hansen, F, Hansen, J D, Hansen, J R, Hansen, P H, Lindhal, A, Møllerud, R, Nilsson, B S, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Fouque, G, Gamess, A, Guirlet, R, Orteu, S, Rosowsky, A, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Candlin, D J, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, D'Ettorre-Piazzoli, B, Felici, G, 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B, Pater, J, Shi, Z, Tang, Y, Walsh, A, Wear, J, Weber, F, Whitney, M, and Wu, S
Subjects: Physics, Particle physics, Annihilation, Physics and Astronomy (miscellaneous), Electron–positron annihilation, Strong interaction, Elementary particle, Bose–Einstein correlations, LEP, Resonance (particle physics), Nuclear physics, Pion, MONTE-CARLO, COHERENCE, PARTICLES, High Energy Physics::Experiment, Quantum field theory, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, MULTIPLE PRODUCTION
Abstract: This paper describes a study of Bose-Einstein correlations made using the ALEPH detector at LEP. The correlations are found to enhance the two particle differential cross section for pairs of identical pions by a factor which can be roughly parametrized by R(Q) = 1 + lambda exp(-Q2-sigma(2)), where Q is the difference in the 3-momenta of the two pions in their centre of mass frame, lambda = 0.51 +/- 0.04 +/- 0.11 and sigma = 3.3 +/- 0.2 +/- 0.8 GeV-1, which corresponds to a source size of 0.65 +/- 0.04 +/- 0.16 fm. The large systematic errors on these results reflect their strong dependence on the choice of the reference sample used in the analysis. This problem is believed to occur primarily because of uncertainties in the rates of resonance production and a lack of knowledge about the pion-pion strong interaction. No significant correlations are seen amongst like-charged pion-kaon pairs.
Published: 1992

32. Measurement of alpha_s In Hadronic Z-decays Using All-orders Resummed Predictions

Author: DECAMP D, DESCHIZEAUX B, GOY C, LEES JP, MINARD MN, ALEMANY R, ARIZTIZABAL F, COMAS P, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, MIR LM, PACHECO A, PASCUAL A, CREANZA D, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LIN J, LOU J, QIAO C, WANG T, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BURNETT TH, DREVERMANN H, FORTY RW, HAGELBERG R, HAYWOOD S, HILGART J, JACOBSEN R, JOST B, KASEMANN M, KNOBLOCH J, LANCON E, LEHRAUS I, LOHSE T, LUSIANI, Alberto, MARTINEZ M, MATO P, MATTISON T, MEINHARD H, MENARY S, MEYER T, MINTEN A, MIOTTO A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, PERLAS JA, RANJARD F, REDLINGER G, ROTH A, ROTHBERG J, RUAN T, SAICH M, SCHLATTER D, SCHMELLING M, SEFKOW F, TEJESSY W, WACHSMUTH H, WIEDENMANN W, WILDISH T, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BADAUD F, BARDADINOTWINOWSKA M, BENCHEIKH AM, ELFELLOUS R, FALVARD A, GAY P, GUICHENEY C, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PIETRZYK B, PRORIOL J, PRULHIERE F, STIMPFL G, HANSEN JD, HANSEN JR, HANSEN PH, MOLLERUD R, NILSSON BS, EFTHYMIOPOULOS I, KYRIAKIS A, SIMOPOULOU E, VAYAKI A, ZACHARIADOU K, BADIER J, BLONDEL A, BONNEAUD G, BRIENT JC, FOUQUE G, GAMESS A, HARVEY J, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, PARSONS MI, VEITCH E, MONETA L, PARRINI G, CORDEN M, GEORGIOPOULOS C, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, WASSERBAECH S, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ALTOON B, BOYLE O, COLRAIN P, TENHAVE I, LYNCH JG, MAITLAND W, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, COLLING DJ, DORNAN PJ, DUGEAY S, GREENE AM, HASSARD JF, LIESKE NM, PATTON SJ, PAYNE DG, PHILLIPS MJ, SEDGBEER JK, TAYLOR G, TOMALIN IR, WRIGHT AG, GIRTLER P, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, JACKSON D, KEEMER NR, NUTTALL M, PATEL A, SLOAN T, SNOW SW, WHELAN EP, BARCZEWSKI T, KLEINKNECHT K, RAAB J, RENK B, ROEHN S, SANDER HG, SCHMIDT H, STEEG F, WALTHER SM, WOLF B, AUBERT JJ, BENCHOUK C, BERNARD V, BONISSENT A, CARR J, COYLE P, DRINKARD J, ETIENNE F, PAPALEXIOU S, PAYRE P, QIAN Z, ROUSSEAU D, SCHWEMLING P, TALBY M, ADLUNG S, BECKER H, BLUM W, BROWN D, CATTANEO P, COWAN G, DEHNING B, DIETL H, DYDAK F, FERNANDEZBOSMAN M, FRANK M, HALLEY AW, HANSLKOZANECKA T, LAUBER J, LUTJENS G, LUTZ G, MANNER W, PAN Y, RICHTER R, ROTSCHEIDT H, SCHRODER J, SCHWARZ AS, SETTLES R, STIERLIN U, STIEGLER U, STDENIS R, TAKASHIMA M, THOMAS J, WOLF G, BERTIN V, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GRIVAZ JF, HEUSSE P, JANOT P, KIM DW, LEDIBERDER F, LEFRANCOIS J, LUTZ AM, SCHUNE MH, VEILLET JJ, VIDEAU I, ZHANG Z, ZOMER F, ABBANEO D, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, CARPINELLI M, CIOCCI MA, DELLORSO R, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GATTO C, GIASSI A, GIORGI MA, MANNELLI EB, MARROCCHESI PS, MESSINEO A, PALLA F, RIZZO G, SANGUINETTI G, STEINBERGER J, TENCHINI R, TONELLI G, TRIGGIANI G, VANNINI C, VENTURI A, VERDINI PG, WALSH J, CARTER JM, GREEN MG, MARCH PV, MEDCALF T, QUAZI IS, STRONG JA, WEST LR, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, BLOCHDEVAUX B, COLAS P, KOZANECKI W, LEMAIRE MC, LOCCI E, LOUCATOS S, MONNIER E, PEREZ P, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, SCHWINDLING J, SIMOHAND D, VALLAGE B, JOHNSON RP, LITKE AM, WEAR J, ASHMAN JG, BABBAGE W, BOOTH CN, BUTTAR C, CARNEY RE, CARTWRIGHT S, COMBLEY F, HATFIELD F, MARTIN J, PARKER D, REEVES P, THOMPSON LF, BARBERIO E, BRANDT S, GRUPEN C, MIRABITO L, SCHAFER U, SEYWERD H, GANIS G, GIANNINI G, GOBBO B, RAGUSA F, BELLANTONI L, CINABRO D, CONWAY JS, COWEN DF, FENG Z, FERGUSON DPS, GAO YS, GRAHL J, HARTON JL, JARED RC, LECLAIRE BW, LISHKA C, PAN YB, PATER JR, SAADI Y, SHARMA V, SCHMITT M, SHI ZH, TANG YH, WALSH AM, WEBER FV, WHITNEY MH, WU SL, WU X, ZOBERNIG G, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S.t. Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, ROLANDI, LUIGI, LIGABUE, FRANCO, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, F., Ariztizabal, P., Coma, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, A., Pascual, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, R., Hagelberg, S., Haywood, J., Hilgart, R., Jacobsen, B., Jost, M., Kasemann, J., Knobloch, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, T., Mattison, H., Meinhard, S., Menary, T., Meyer, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, J. A., Perla, F., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, F., Sefkow, W., Tejessy, H., Wachsmuth, W., Wiedenmann, T., Wildish, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, B., Pietrzyk, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, A., Kyriaki, E., Simopoulou, A., Vayaki, K., Zachariadou, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, J., Harvey, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, M. I., Parson, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgipoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, S., Wasserbaech, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, L., Passalacqua, M., Pepe Artarelli, P., Picchi, B., Altoon, O., Boyle, P., Colrain, I., ten Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, D. J., Colling, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, D., Jackson, N. R., Keemer, M., Nuttall, A., Patel, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, S., Papalexiou, P., Payre, Z., Qian, D., Rousseau, P., Schwemling, M., Talby, S., Adlung, H., Becker, W., Blum, D., Brown, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, M., Frank, A. W., Halley, T., Hansl Kozanecka, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, H., Rotscheidt, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, U., Stiegler, Denis, R. S. t., M., Takashima, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocco, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Rizzo, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, L. R., West, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, W., Kozanecki, M. C., Lemaire, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, D., Si Mohand, B., Vallage, R. P., Johnson, A. M., Litke, J., Wear, J. G., Ashman, W., Babbage, C. N., Booth, C., Buttar, R. E., Carney, S., Cartwright, F., Combley, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, C., Grupen, L., Mirabito, U., Schäfer, H., Seywerd, G., Gani, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, R. C., Jared, B. W., Leclaire, C., Lishka, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, M., Schmitt, Z. H., Shi, Y. H., Tang, A. M., Walsh, F. V., Weber, M. H., Whitney, Sau Lan, Wu, X., Wu, G., Zobernig, Decamp, D, Deschizeaux, B, Goy, C, Lees, J, Minard, M, Alemany, R, Ariztizabal, F, Comas, P, Crespo, J, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, L, Pacheco, A, Pascual, A, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W, Bauerdick, L, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, T, Drevermann, H, Forty, R, Hagelberg, R, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Kasemann, M, Knobloch, J, Lancon, E, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Minten, A, Miotto, A, Miquel, R, Moser, H, Nash, J, Palazzi, P, Perlas, J, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Sefkow, F, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadinotwinowska, M, Bencheikh, A, Elfellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, J, Pallin, D, Perret, P, Pietrzyk, B, Proriol, J, Prulhiere, F, Stimpfl, G, Hansen, J, Hansen, P, Mollerud, R, Nilsson, B, Efthymiopoulos, I, Kyriakis, A, Simopoulou, E, Vayaki, A, Zachariadou, K, Badier, J, Blondel, A, Bonneaud, G, Brient, J, Fouque, G, Gamess, A, Harvey, J, Orteu, S, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, D, Parsons, M, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Wasserbaech, S, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G, Passalacqua, L, Pepealtarelli, M, Picchi, P, Altoon, B, Boyle, O, Colrain, P, Tenhave, I, Lynch, J, Maitland, W, Morton, W, Raine, C, Scarr, J, Smith, K, Thompson, A, Turnbull, R, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A, Beuselinck, R, Binnie, D, Cameron, W, Cattaneo, M, Colling, D, Dornan, P, Dugeay, S, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Taylor, G, Tomalin, I, Wright, A, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C, Brodbeck, T, Finch, A, Foster, F, Hughes, G, Jackson, D, Keemer, N, Nuttall, M, Patel, A, Sloan, T, Snow, S, Whelan, E, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, H, Schmidt, H, Steeg, F, Walther, S, Wolf, B, Aubert, J, Benchouk, C, Bernard, V, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Qian, Z, Rousseau, D, Schwemling, P, Talby, M, Adlung, S, Becker, H, Blum, W, Brown, D, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Frank, M, Halley, A, Hanslkozanecka, T, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Rotscheidt, H, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Stiegler, U, Stdenis, R, Takashima, M, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Grivaz, J, Heusse, P, Janot, P, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Schune, M, Veillet, J, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, S, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Gatto, C, Giassi, A, Giorgi, M, Ligabue, F, Mannelli, E, Marrocchesi, P, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P, Walsh, J, Carter, J, Green, M, March, P, Medcalf, T, Quazi, I, Strong, J, West, L, Botterill, D, Clifft, R, Edgecock, T, Edwards, M, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Blochdevaux, B, Colas, P, Kozanecki, W, Lemaire, M, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Simohand, D, Vallage, B, Johnson, R, Litke, A, Wear, J, Ashman, J, Babbage, W, Booth, C, Buttar, C, Carney, R, Cartwright, S, Combley, F, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, L, Barberio, E, Brandt, S, Grupen, C, Mirabito, L, Schafer, U, Seywerd, H, Ganis, G, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Cinabro, D, Conway, J, Cowen, D, Feng, Z, Ferguson, D, Grahl, J, Harton, J, Jared, R, Leclaire, B, Lishka, C, Pater, J, Saadi, Y, Sharma, V, Schmitt, M, Shi, Z, Tang, Y, Walsh, A, Weber, F, Whitney, M, Wu, S, Wu, X, Zobernig, G, Lees, Jp, Minard, Mn, Crespo, Jm, Mir, Lm, Atwood, Wb, Bauerdick, Lat, Burnett, Th, Forty, Rw, Lusiani, Alberto, Moser, Hg, Perlas, Ja, Rolandi, Luigi, Bencheikh, Am, Montret, Jc, Hansen, Jd, Hansen, Jr, Hansen, Ph, Brient, Jc, Candlin, Dj, Parsons, Mi, Murtas, Gp, Lynch, Jg, Morton, Wt, Scarr, Jm, Turnbull, Rm, Kluge, Ee, Belk, At, Binnie, Dm, Colling, Dj, Dornan, Pj, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Keemer, Nr, Snow, Sw, Whelan, Ep, Sander, Hg, Walther, Sm, Aubert, Jj, Halley, Aw, Grivaz, Jf, Kim, Dw, Lutz, Am, Schune, Mh, Veillet, Jj, Amendolia, Sr, Ciocci, Ma, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Verdini, Pg, Carter, Jm, Green, Mg, March, Pv, Strong, Ja, West, Lr, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Lemaire, Mc, Renardy, Jf, Schuller, Jp, Johnson, Rp, Litke, Am, Ashman, Jg, Booth, Cn, Carney, Re, Thompson, Lf, Cowen, Df, Ferguson, Dp, Harton, Jl, Jared, Rc, Leclaire, Bw, Pan, Yb, Pater, Jr, Shi, Zh, Tang, Yh, Walsh, Am, Weber, Fv, Whitney, Mh, Wu, Sl, and Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S. t.
Subjects: Physics, PARTON SHOWERS, Nuclear and High Energy Physics, Aleph, Particle physics, Electron–positron annihilation, Hadron, JET PRODUCTION-RATES, MULTIPLICITY, RESONANCE, QCD, Nuclear physics, COHERENT, MONTE-CARLO, High Energy Physics::Experiment, FRAGMENTATION, Particle Physics - Experiment
Abstract: Using 109 000 hadronic events obtained with the ALEPH detector at LEP at energies close to the Z resonance peak, the strong coupling constant alpha(s) (M(Z)2) is determined from an analysis of the global event shape variables thrust, heavy jet mass and the differential two-jet rate based on the k(T)-clustering scheme. The analysis uses improved theoretical predictions in which leading and next-to-leading logarithms, resummed to all orders, supplement second order expressions. After combining the results from all variables, alpha(s) (M(Z)2) is measured to be 0. 12 5 +/- 0.005, where the error is the quadratic sum of experimental and theoretical uncertainties, and is dominated by the latter.
Published: 1992

33. Properties of Hadronic Z-decays and Test of QCD Generators

Author: BUSKULIC D, DECAMP D, GOY C, LEES JP, MINARD MN, MOURS B, ALEMANY R, ARIZTIZABAL F, COMAS P, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, MIR LM, PACHECO A, PASCUAL A, CREANZA D, DEPLAMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LOU J, QIAO C, WANG T, XIE Y, XU D, XU R, ZHANG J, LIN J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BURNETT TH, DREVERMANN H, FORTY RW, HAGELBERG R, HARVEY J, HAYWOOD S, HILGART J, JACOBSEN R, JOST B, KNOBLOCH J, LANCON E, LEHRAUS I, LOHSE T, MARTINEZ M, MATO P, MATTISON T, MEINHARD H, MENARY S, MEYER T, MINTEN A, MIOTTO A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, PERLAS JA, RANJARD G, REDLINGER G, ROLANDI L, ROTH A, ROTHBERG J, RUAN T, SAICH M, SCHLATTER D, SCHMELLING M, SEFKOW F, TEJESSY W, WACHSMUTH H, WIEDENMANN W, WILDISH T, WITZELING W, WOTSCHAK J, AJALTOUNI Z, BADAUD F, BARDADINOTWINOWSKA M, BENCHEIKH AM, ELFELLOUS R, FALVARD A, GAY P, GUICHENEY C, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PIETRZYK B, PRORIOL J, PREULHIERE F, STIMPFL G, FEARNLEY T, HANSEN JD, HANSEN JR, HANSEN PH, MOLLERUD R, NILSSON BS, EFTHYMIOPOULOS I, KYRIAKIS A, SIMOPOULOU E, VAYAKI A, ZACHARIADOU K, BADIER J, BLONDEL A, BONNEAUD G, BRIENT JC, FOUQUE G, GAMESS A, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, PARSONS MI, VEITCH E, MONETA L, PARRINI G, CORDEN M, GEORGIOPOULOS C, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, WASSERBAECH S, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ALTOON B, BOYLE O, COLRAIN P, TENHAVE I, LYNCH JG, MAITLAND W, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, COLLING DJ, DORNAN PJ, DUGEAY S, GREENE AM, HASSARD JF, LIESKE NM, PATTON SJ, PAYNE DG, PHILLIPS MJ, SEDGBEER JK, TOMALIN IR, WRIGHT AG, KNERINGER E, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, JACKSON D, KEEMER NR, NUTTALL M, PATEL A, SLOAN T, SNOW SW, WHELAN EP, BARCZEWSKI T, KLEINKNECHT K, RAAB J, RENK B, ROEHN S, SANDER HG, SCHMIDT H, STEEG F, WALTHER SM, WOLF B, AUBERT JJ, BENCHOUK C, BERNARD V, BONISSENT A, CARR J, COYLE P, DRINKARD J, ETIENNE F, PAPALEXIOU S, PAYRE P, QIAN Z, ROUSSEAU D, SCHWEMLING P, TALBY M, ADLUNG S, BECKER H, BLUM W, BROWN D, CATTANEO P, COWAN G, DEHNING B, DIETL H, DYDAK F, FERNANDEZBOSMAN M, FRANK M, HALLEY AW, HANSLKOZANECKA T, LAUBER J, LUTJENS G, LUTZ G, MANNER W, PAN Y, RICHTER R, ROTSCHEIDT H, SCHRODER J, SCHWARZ AS, SETTLES R, STIERLIN U, STIEGLER U, STDENIS R, TAKASHIMA M, THOMAS J, WOLF G, BERTIN V, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GRIVAZ JF, HEUSSE P, JANOT P, KIM DW, LEDIBERDER F, LEFRANCOIS J, LUTZ AM, SCHUNE MH, VEILLET JJ, VIDEAU I, ZHANG Z, ZOMER F, ABBANEO D, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, CARPINELLI M, CIOCCI MA, DELLORSO R, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GIASSI A, GIORGI MA, MANNELLI EB, MARROCCHESI PS, MESSINEO A, PALLA F, RIZZO G, SANGUINETTI G, STEINBERGER J, TECHINI R, TONELLI G, TRIGGIANI G, VANNINI C, VENTURI A, VERDINI PG, WALSH J, CARTER JM, GREEN MG, MARCH PV, MEDCALF T, QUAZI IS, STRONG JA, WEST LR, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, BLOCHDEVAUX B, COLAS P, KOZANECKI W, LEMAIRE MC, LOCCI E, LOUCATOS S, MONNIER E, PEREZ P, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, SCHWINDLING J, MOHAND DS, VALLAGE B, JOHNSON RP, LITKE AM, TAYLOR G, WEAR J, ASHMAN JG, BABBAGE W, BOOTH CN, BUTTAR C, CARNEY RE, CARTWRIGHT S, COMBLEY F, HATFIELD F, REEVES P, THOMPSON LF, BARBERIO E, BRANDT S, GRUPEN C, MIRABITO L, SCHAFER U, SEYWERD H, GANIS G, GIANNINI G, GOBBO B, RAGUSA F, BELLANTONI L, CINABRO D, CONWAY JS, COWEN DF, FENG Z, FERGUSON DPS, GAO YS, GRAHL J, HARTON JL, JARED RC, LECLAIRE BW, LISHKA C, PAN YB, PATER JR, SAADI Y, SHARMA V, SCHMITT M, SHI ZH, TANG YH, WALSH AM, WEBER FV, WHITNEY MH, WU SL, WU X, ZOBERNIG G, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S.t. Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, LUSIANI, Alberto, LIGABUE, FRANCO, Buskulic, D, Decamp, D, Goy, C, Lees, Jp, Minard, Mn, Mours, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, Jm, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, Lm, Pacheco, A, Pascual, A, Creanza, D, Deplama, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Lin, J, Zhao, W, Atwood, Wb, Bauerdick, Lat, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, Th, Drevermann, H, Forty, Rw, Hagelberg, R, Harvey, J, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Knobloch, J, Lancon, E, Lehraus, I, Lohse, T, Lusiani, Alberto, Martinez, M, Mato, P, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Minten, A, Miotto, A, Miquel, R, Moser, Hg, Nash, J, Palazzi, P, Perlas, Ja, Ranjard, G, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Sefkow, F, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschak, J, Ajaltouni, Z, Badaud, F, Bardadinotwinowska, M, Bencheikh, Am, Elfellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Pietrzyk, B, Proriol, J, Preulhiere, F, Stimpfl, G, Fearnley, T, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Nilsson, B, Efthymiopoulos, I, Kyriakis, A, Simopoulou, E, Vayaki, A, Zachariadou, K, Badier, J, Blondel, A, Bonneaud, G, Brient, Jc, Fouque, G, Gamess, A, Orteu, S, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, Dj, Parsons, Mi, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Wasserbaech, S, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Passalacqua, L, Pepealtarelli, M, Picchi, P, Altoon, B, Boyle, O, Colrain, P, Tenhave, I, Lynch, Jg, Maitland, W, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Turnbull, Rm, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Colling, Dj, Dornan, Pj, Dugeay, S, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Jackson, D, Keemer, Nr, Nuttall, M, Patel, A, Sloan, T, Snow, Sw, Whelan, Ep, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, Hg, Schmidt, H, Steeg, F, Walther, Sm, Wolf, B, Aubert, Jj, Benchouk, C, Bernard, V, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Qian, Z, Rousseau, D, Schwemling, P, Talby, M, Adlung, S, Becker, H, Blum, W, Brown, D, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Frank, M, Halley, Aw, Hanslkozanecka, T, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Rotscheidt, H, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Stiegler, U, Stdenis, R, Takashima, M, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Grivaz, Jf, Heusse, P, Janot, P, Kim, Dw, Lediberder, F, Lefrancois, J, Lutz, Am, Schune, Mh, Veillet, Jj, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, Ma, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Steinberger, J, Techini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, Pg, Walsh, J, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Quazi, I, Strong, Ja, West, Lr, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Kozanecki, W, Lemaire, Mc, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Schwindling, J, Mohand, D, Vallage, B, Johnson, Rp, Litke, Am, Taylor, G, Wear, J, Ashman, Jg, Babbage, W, Booth, Cn, Buttar, C, Carney, Re, Cartwright, S, Combley, F, Hatfield, F, Reeves, P, Thompson, Lf, Barberio, E, Brandt, S, Grupen, C, Mirabito, L, Schafer, U, Seywerd, H, Ganis, G, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Ferguson, Dp, Grahl, J, Harton, Jl, Jared, Rc, Leclaire, Bw, Lishka, C, Pan, Yb, Pater, Jr, Saadi, Y, Sharma, V, Schmitt, M, Shi, Zh, Tang, Yh, Walsh, Am, Weber, Fv, Whitney, Mh, Wu, Sl, Wu, X, Zobernig, G, Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S. t., D., Buskulic, D., Decamp, C., Goy, J. P., Lee, M. N., Minard, B., Mour, R., Alemany, F., Ariztizabal, P., Coma, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., L. M., Mir, A., Pacheco, A., Pascual, D., Creanza, M., Plama, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, R., Hagelberg, J., Harvey, S., Haywood, J., Hilgart, R., Jacobsen, B., Jost, J., Knobloch, E., Lan�on, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, T., Mattison, H., Meinhard, S., Menary, T., Meyer, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, J. A., Perla, G., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, F., Sefkow, W., Tejessy, H., Wachsmuth, W., Wiedenmann, T., Wildish, W., Witzeling, J., Wotschak, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, B., Pietrzyk, J., Proriol, F., Preulhi�re, G., Stimpfl, T., Fearnley, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., M�llerud, B. S., Nilsson, I., Efthymiopoulo, A., Kyriaki, E., Simopoulou, A., Vayaki, K., Zachariadou, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, S., Orteu, A., Rosowsky, A., Roug�, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, M. I., Parson, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, S., Wasserbaech, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, G., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, L., Passalacqua, M., Pepe Altarelli, P., Picchi, B., Altoon, O., Boyle, P., Colrain, I., Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, D. J., Colling, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, I. R., Tomalin, A. G., Wright, E., Kneringer, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, D., Jackson, N. R., Keemer, M., Nuttall, A., Patel, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, S., Papalexiou, P., Payre, Z., Qian, D., Rousseau, P., Schwemling, M., Talby, S., Adlung, H., Becker, W., Blum, D., Brown, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, M., Frank, A. W., Halley, T., Hansl Kozanecka, J., Lauber, G., L�tjen, G., Lutz, W., M�nner, Y., Pan, R., Richter, H., Rotscheidt, J., Schr�der, A. S., Schwarz, R., Settle, U., Stierlin, U., Stiegler, Denis, R. S. t., M., Takashima, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Diberder, J., Lefran�oi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Fo�, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Rizzo, G., Sanguinetti, J., Steinberger, R., Technini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, L. R., West, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, W., Kozanecki, M. C., Lemaire, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, D., Mohand, B., Vallage, R. P., Johnson, A. M., Litke, G., Taylor, J., Wear, J. G., Ashman, W., Babbage, C. N., Booth, C., Buttar, R. E., Carney, S., Cartwright, F., Combley, F., Hatfield, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, C., Grupen, L., Mirabito, U., Sch�fer, H., Seywerd, G., Gani, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, J., Grahl, J. L., Harton, R. C., Jared, B. W., Leclaire, C., Lishka, J. R., Pater, Y., Saadi, V., Sharma, M., Schmitt, Z. H., Shi, Y. H., Tang, A. M., Walsh, F. V., Weber, M. H., Whitney, Sau Lan, Wu, X., Wu, G., Zobernig, Lees, J, Minard, M, Crespo, J, Mir, L, Atwood, W, Bauerdick, L, Burnett, T, Forty, R, Lusiani, A, Moser, H, Perlas, J, Bencheikh, A, Montret, J, Hansen, J, Hansen, P, Brient, J, Candlin, D, Parsons, M, Murtas, G, Lynch, J, Morton, W, Scarr, J, Turnbull, R, Kluge, E, Belk, A, Binnie, D, Colling, D, Dornan, P, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Tomalin, I, Wright, A, Bowdery, C, Brodbeck, T, Finch, A, Keemer, N, Snow, S, Whelan, E, Sander, H, Walther, S, Aubert, J, Halley, A, Grivaz, J, Kim, D, Lutz, A, Schune, M, Veillet, J, Amendolia, S, Ciocci, M, Giorgi, M, Ligabue, F, Mannelli, E, Verdini, P, Carter, J, Green, M, March, P, Strong, J, West, L, Botterill, D, Clifft, R, Edgecock, T, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Lemaire, M, Renardy, J, Schuller, J, Johnson, R, Litke, A, Ashman, J, Booth, C, Carney, R, Thompson, L, Cowen, D, Ferguson, D, Harton, J, Jared, R, Leclaire, B, Pater, J, Shi, Z, Tang, Y, Walsh, A, Weber, F, Whitney, M, and Wu, S
Subjects: Quantum chromodynamics, Physics, Particle physics, Aleph, Physics and Astronomy (miscellaneous), Electron–positron annihilation, Hadron, High Energy Physics::Phenomenology, Charged particle, Hadronization, Nuclear physics, Renormalization, High Energy Physics::Experiment, Parton shower, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: Distributions are presented of event shape variables, jet roduction rates and charged particle momenta obtained from 53 000 hadronic Z decays. They are compared to the predictions of the QCD + hadronization models JETSET, ARIADNE and HERWIG, and are used to optimize several model parameters. The JETSET and ARIADNE coherent parton shower (PS) models with running alpha(s) and string fragmentation yield the best description of the data. The HERWIG parton shower model with cluster fragmentation fits the data less well. The data are in better agreement with JETSET PS than with JETSET O(alpha(s)2) matrix elements (ME) even when the renormalization scale is optimized.
Published: 1992

34. Evidence for b baryons in Z decays

Author: DECAMP D, DESCHIZEAUX B, GOY C, LEES JP, MINARD MN, ALEMANY R, ARIZTIZABAL F, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, MIR LM, PACHECO A, PASCUAL A, CATANESI MG, CREANZA D, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LIN J, LOU J, QIAO C, WANG T, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BIRD F, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BURNETT TH, DREVERMANN H, FORTY RW, GRAB C, HAGELBERG R, HAYWOOD S, HILGART J, JOST E, KASEMANN M, KNOBLOCH J, LACOURT A, LANCON E, LEHRAUS I, LOHSE T, LUSIANI, Alberto, MARTINEZ M, MATO P, MENARY S, MEYER T, MINTEN A, MIOTTO A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, PERLAS JA, RANJARD F, REDLINGER G, ROTH A, ROTHBERG J, RUAN T, SAICH M, SCHLATTER D, SCHMELLING M, TEJESSY W, WACHSMUTH H, WIEDENMANN W, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BADAUD F, BARDADINOTWINOWSKA M, BENCHEIKH AM, ELFELLOUS R, FALVARD A, GAY P, GUICHENEY C, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PIETRZYK B, PRORIOL J, PRULHIERE F, STIMPFL G, HANSEN JD, HANSEN JR, HANSEN PH, MOLLERUD R, NILSSON BS, EFTHYMIOPOULOS I, SIMOPOULOU E, VAYAKI A, BADIER J, BLONDEL A, BONNEAUD G, BRIENT JC, FOUQUE G, GAMESS A, HARVEY J, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, PARSONS MI, VEITCH E, MONETA L, PARRINI G, CORDEN M, GEORGIOPOULOS C, LKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, WASSERBAECH S, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ZOGRAFOU P, ALTOON B, BOYLE O, COLRAIN P, HALLEY AW, TENHAVE I, LYNCH JG, MAITLAND W, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, COLLING DJ, DORNAN PJ, DUGEAY S, GREENE AM, HASSARD JF, LIESKE NM, PATTON SJ, PAYNE DG, PHILLIPS MJ, SEDGBEER JK, TAYLOR G, TOMALIN IR, WRIGHT AG, GIRTLER P, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, JACKSON D, KEEMER NR, NUTTALL M, PATEL A, SLOAN T, SNOW SW, WHELAN EP, BARCZEWSKI T, KLEINKNECHT K, RAAB J, RENK B, ROEHN S, SANDER HG, SCHMIDT H, STEEG F, WALTHER SM, WOLF B, AUBERT JJ, BENCHOUK C, BERNARD V, BONISSENT A, CARR J, COYLE P, DRINKARD J, ETIENNE F, PAPALEXIOU S, PAYRE P, QIAN Z, ROUSSEAU D, SCHWERNLING P, TALBY M, ADLUNG S, BECKER H, BLUM W, BROWN D, CATTANEO P, COWAN G, DEHNING B, DIETL H, DYDAK F, FERNANDEZBOSMAN M, HANSLKOZANECKA T, JAHN A, LANGE E, LAUBER J, LUTJENS G, LUTZ G, MANNER W, PAN Y, RICHTER R, ROTSCHEIDT H, SCHRODER J, SCHWARZ AS, SETTLES R, STIERLIN U, STIEGLER U, STDENIS R, TAKASHIMA M, THOMAS J, WOLF G, BERTIN V, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GRIVAZ JF, HEUSSE P, JANOT P, KIM DW, LEDIBERDER F, LEFRANCOIS J, LUTZ AM, SCHUNE MH, VEILLET JJ, VIDEAU I, ZHANG Z, ZOMER F, ABBANEO D, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, CARPINELLI M, CIOCCI MA, DELLORSO R, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GATTO C, GIASSI A, GIORGI MA, MANNELLI EB, MARROCCHESI PS, MESSINEO A, PALLA F, SANGUINETTI G, STEINBERGER J, TENCHINI R, TONELLI G, TRIGGIANI G, VANNINI C, VENTURI A, VERDINI PG, WALSH J, CARTER JM, GREEN MG, MARCH PV, MEDCALF T, QUAZI IS, STRONG JA, WEST LR, WILDISH T, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, BLOCHDEVAUX B, COLAS P, KOZANECKI W, LOCCI E, LOUCATOS S, MONNIER E, PEREZ P, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, SCHWINDLING J, VALLAGE B, JOHNSON RP, LITKE AM, WEAR J, ASHMAN JG, BOOTH CN, BUTTAR C, CARNEY RE, CARTWRIGHT S, COMBLEY F, DOGRU M, HATFIELD F, MARTIN J, PARKER D, REEVES P, THOMPSON LF, BARBERIO E, BRANDT S, GRUPEN C, MEINHARD H, MIRABITO L, SCHAFER U, SEYWERD H, GANIS G, GIANNINI G, GOBBO B, RAGUSA F, BELLANTONI L, CINABRO D, CONWAY JS, COWEN DF, FENG Z, FERGUSON DPS, GAO YS, GRAHL J, HARTON JL, JARED RC, LECLAIRE BW, LISHKA C, PAN YB, PATER JR, SAADI Y, SHARMA V, SCHMITT M, SHI ZH, TANG YH, WALSH AM, WEBER FV, WHITNEY MH, WU SL, WU X, ZOBERNIG G, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S.t. Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, ROLANDI, LUIGI, LIGABUE, FRANCO, Decamp, D, Deschizeaux, B, Goy, C, Lees, J, Minard, M, Alemany, R, Ariztizabal, F, Crespo, J, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, L, Pacheco, A, Pascual, A, Catanesi, M, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W, Bauerdick, L, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, T, Drevermann, H, Forty, R, Grab, C, Hagelberg, R, Haywood, S, Hilgart, J, Jost, E, Kasemann, M, Knobloch, J, Lacourt, A, Lancon, E, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Menary, S, Meyer, T, Minten, A, Miotto, A, Miquel, R, Moser, H, Nash, J, Palazzi, P, Perlas, J, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadinotwinowska, M, Bencheikh, A, Elfellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, J, Pallin, D, Perret, P, Pietrzyk, B, Proriol, J, Prulhiere, F, Stimpfl, G, Hansen, J, Hansen, P, Mollerud, R, Nilsson, B, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Brient, J, Fouque, G, Gamess, A, Harvey, J, Orteu, S, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, D, Parsons, M, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C, Lkeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Wasserbaech, S, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G, Passalacqua, L, Pepealtarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Colrain, P, Halley, A, Tenhave, I, Lynch, J, Maitland, W, Morton, W, Raine, C, Scarr, J, Smith, K, Thompson, A, Turnbull, R, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A, Beuselinck, R, Binnie, D, Cameron, W, Cattaneo, M, Colling, D, Dornan, P, Dugeay, S, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Taylor, G, Tomalin, I, Wright, A, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C, Brodbeck, T, Finch, A, Foster, F, Hughes, G, Jackson, D, Keemer, N, Nuttall, M, Patel, A, Sloan, T, Snow, S, Whelan, E, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, H, Schmidt, H, Steeg, F, Walther, S, Wolf, B, Aubert, J, Benchouk, C, Bernard, V, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Qian, Z, Rousseau, D, Schwernling, P, Talby, M, Adlung, S, Becker, H, Blum, W, Brown, D, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Hanslkozanecka, T, Jahn, A, Lange, E, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Rotscheidt, H, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Stiegler, U, Stdenis, R, Takashima, M, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Grivaz, J, Heusse, P, Janot, P, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Schune, M, Veillet, J, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, S, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Gatto, C, Giassi, A, Giorgi, M, Ligabue, F, Mannelli, E, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P, Walsh, J, Carter, J, Green, M, March, P, Medcalf, T, Quazi, I, Strong, J, West, L, Wildish, T, Botterill, D, Clifft, R, Edgecock, T, Edwards, M, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Blochdevaux, B, Colas, P, Kozanecki, W, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Vallage, B, Johnson, R, Litke, A, Wear, J, Ashman, J, Booth, C, Buttar, C, Carney, R, Cartwright, S, Combley, F, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, L, Barberio, E, Brandt, S, Grupen, C, Meinhard, H, Mirabito, L, Schafer, U, Seywerd, H, Ganis, G, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Cinabro, D, Conway, J, Cowen, D, Feng, Z, Ferguson, D, Grahl, J, Harton, J, Jared, R, Leclaire, B, Lishka, C, Pater, J, Saadi, Y, Sharma, V, Schmitt, M, Shi, Z, Tang, Y, Walsh, A, Weber, F, Whitney, M, Wu, S, Wu, X, Zobernig, G, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, F., Ariztizabal, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, A., Pascual, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, E., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, S., Menary, T., Meyer, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, J. A., Perla, F., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, W., Tejessy, H., Wachsmuth, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, B., Pietrzyk, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, J., Harvey, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, M. I., Parson, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Lkeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, S., Wasserbaech, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, P., Colrain, A. W., Halley, I., ten Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, D. J., Colling, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, D., Jackson, N. R., Keemer, M., Nuttall, A., Patel, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, S., Papalexiou, P., Payre, Z., Qian, D., Rousseau, P., Schwernling, M., Talby, S., Adlung, H., Becker, W., Blum, D., Brown, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, H., Rotscheidt, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, U., Stiegler, Denis, R. S. t., M., Takashima, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, W., Kozanecki, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, R. P., Johnson, A. M., Litke, J., Wear, J. G., Ashman, C. N., Booth, C., Buttar, R. E., Carney, S., Cartwright, F., Combley, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, C., Grupen, H., Meinhard, L., Mirabito, U., Schäfer, H., Seywerd, G., Gani, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, R. C., Jared, B. W., Leclaire, C., Lishka, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, M., Schmitt, Z. H., Shi, Y. H., Tang, A. M., Walsh, F. V., Weber, M. H., Whitney, Wu Sau, Lan, X., Wu, G., Zobernig, Lees, Jp, Minard, Mn, Crespo, Jm, Mir, Lm, Catanesi, Mg, Atwood, Wb, Bauerdick, Lat, Burnett, Th, Forty, Rw, Lusiani, Alberto, Moser, Hg, Perlas, Ja, Rolandi, Luigi, Bencheikh, Am, Montret, Jc, Hansen, Jd, Hansen, Jr, Hansen, Ph, Brient, Jc, Candlin, Dj, Parsons, Mi, Murtas, Gp, Halley, Aw, Lynch, Jg, Morton, Wt, Scarr, Jm, Turnbull, Rm, Kluge, Ee, Belk, At, Binnie, Dm, Colling, Dj, Dornan, Pj, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Keemer, Nr, Snow, Sw, Whelan, Ep, Sander, Hg, Walther, Sm, Aubert, Jj, Grivaz, Jf, Kim, Dw, Lutz, Am, Schune, Mh, Veillet, Jj, Amendolia, Sr, Ciocci, Ma, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Verdini, Pg, Carter, Jm, Green, Mg, March, Pv, Strong, Ja, West, Lr, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Renardy, Jf, Schuller, Jp, Johnson, Rp, Litke, Am, Ashman, Jg, Booth, Cn, Carney, Re, Thompson, Lf, Cowen, Df, Ferguson, Dp, Harton, Jl, Jared, Rc, Leclaire, Bw, Pan, Yb, Pater, Jr, Shi, Zh, Tang, Yh, Walsh, Am, Weber, Fv, Whitney, Mh, Wu, Sl, and Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S. t.
Subjects: Semileptonic decay, Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Nuclear physics, Baryon, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, Particle Physics - Experiment
Abstract: In 160 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of Λl− and Λl+ combinations have been measured. The observed excess of Λl− over Λl+ of 53±13 is interpreted as evidence for b baryons and their semileptonic decay. Assuming that three body decay processes such as Λ b →Λ c + l − v dominate the semileptonic decay of b baryons, this ex cess corresponds to a product branching ratio BR ( b →Λ b )· BR (Λ b →Λ c + l − v )· BR (Λ c + →ΛX) = (0.95±0.22 ( stat. )±0.21( syst. ))% , where Λb and Λc+ denote the bottom and charm baryons respectively.
Published: 1991

35. Charged particle pair production associated with a lepton pair in Z decays. Indication of an excess in the tau channel

Author: Decamp, D., Deschizeaux, B., Goy, C., Lees, J., Minard, M., Alemany, R., Crespo, J., Delfino, M., Fernandez, E., Gaitan, V., Garrido, L., Mir, L., Pacheco, A., Catanesi, M., Creanza, D., Palma, M. D., Farilla, A., Iaselli, G. a., Maggi, G., Maggi, M., Natali, S., Nuzzo, S., Quattromini, M., Ranieri, A., Raso, G., Romano, F., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Zito, G., Gao, Y., Hu, H., Huang, D., Huang, X., Lin, J., Lou, J., Qiao, C., Ruan, T., Wang, T., Xie, Y., Xu, D., Xu, R., Zhang, J., Zhao, W., Atwood, W. a., Bauerdick, L., Bird, F., Blucher, E., Bonvicini, G., Bossi, F., Brown, D., Burnett, T. a., Drevermann, H., Forty, R., Grab, C., Hagelberg, R., Haywood, S., Hilgart, J., Jost, B., Kasemann, M., Knobloch, J., Lacourt, A., Lançon, E., Lehraus, I., Lohse, T., Marchioro, A., Martinez, M., Mato, P., Menary, S., Minten, A., Miotto, A., Miquel, R., Moser, H., Nash, J., Palazzi, P., Ranjard, F., Redlinger, G., Roth, A., Rothberg, J. a., Rotscheidt, H., Denis, R. S. t., Schlatter, D., Takashima, M., Talby, M. a., Tejessy, W., Wachsmuth, H., Wasserbaech, S., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., W. a., Aj, Ajaltounif, Bardadin Otwinowska, M., Falvard, A., Fellous, R. E., Gay, P., Harvey, J., Henrard, P., Jousset, J., Michel, B., Montret, J., Pallin, D., Perret, P., Proriol, J., Prulhière, F., Stimpfl, G., Hansen, J., Hansen, P., Møllerud, R., Nielsen, E., Nilsson, B., Efthymiopoulos, I., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., Bourotte, J., Braems, F., Brient, J., Fouque, G., Gamess, A., Guirlet, R., Orteu, S., Rosowsky, A., Rougé, A., Rumpf, M., Tanaka, R., Videau, H., Candlin, D., Veitch, E., Parrini, G., Corden, M., Georgiopoulos, C., Ikeda, M., Lannutti, J., Levinthal, D., Mermikides, M., Sawyer, L., Antonelli, A., Baldini, R., Bencivenni, G., Bologna, G. a., Campana, P., Capon, G., Cerutti, F., Chiarella, V., D'Ettorre Piazzoli, B. a., Felici, G., Laurelli, P., Mannocchi, G. a., Murtas, F., Murtas, G., Nicoletti, G., Passalacqua, L., Pepe Altarelli, M., Picchi, P. a., Zografou, P., Altoon, B., Boyle, O., Halley, A., Have, I. T., Hearns, J., Lynch, J., Morton, W., Raine, C., Scarr, J., Smith, K., Thompson, A., Turnbull, R., Brandl, B., Braun, O., Geiges, R., Geweniger, C., Hanke, P., Hepp, V., Kluge, E., Maumary, Y., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Belk, A., Beuselinck, R., Binnie, D., Cameron, W., Cattaneo, M., Dornan, P. a., Dugeay, S., Greene, A., Lieske, N., Patton, S., Payne, D., Phillips, M., Sedgbeer, J., Taylor, G., Tomalin, I., Wright, A., Girtler, P., Kuhn, D., Rudolph, G., Bowdery, C. a., Brodbeck, T., Finch, A., Foster, F., Hughes, G., Keemer, N., Nuttall, M., Patel, A., Rowlingson, B., Sloan, T., Snow, S., Whelan, E., Barczewski, T., Kleinknecht, K., Raab, J., Renk, B., Roehn, S., Sander, H., Schmelling, M., Schmidt, H., Steeg, F., Walther, S., Wolf, B., Albanese, J., Aubert, J., Benchouk, C., Bernard, V., Bonissent, A., Courvoisier, D., Etienne, F., Papalexiou, S., Payre, P., Pietrzyk, B., Qian, Z., Becker, H., Blum, W., Cattaneo, P., Cowan, G., Dehning, B., Dietl, H., Dydak, F. a., Fernandez Bosman, M., Hansl Kozanecka, T. a., Jahn, A., Kozanecki, W. a., Lange, E., Lauber, J., Lütjens, G., Lutz, G., Männer, W., Pan, Y., Richter, R., Schröder, J., Schwarz, A., Settles, R., Stierlin, U., Thomas, J., Wolf, G., Bertin, V., Boucrot, J., Callot, O. a., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J., Heusse, P., Janot, P., Kim, D., Diberder, F. L., Lefrançois, J. a., Lutz, A., Veillet, J., Videau, I., Zhang, Z., Zomer, F., Abbaneo, D., Amendolia, S., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, Ubaldo, Bradaschia, C., Carpinelli, M., Ciocci, MARIA AGNESE, Dell'Orso, R., Ferrante, I., Fidecaro, F., Foà, L., Focardi, E., Forti, F., Giassi, A., Giorgi, M., Ligabue, F., Lusiani, A., Mannelli, E., Marrocchesi, PIER SIMONE, Messineo, A., Moneta, L., Palla, F., Sanguinetti, G., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Vannini, C., Venturi, A., Verdini, P., Walsh, J., Carter, J., Green, M. a., March, P., Medcalf, T., Quazi, I., Saich, M., Strong, J., Thomas, R., West, L., Wildish, T., Botterill, D., Clifft, R., Edgecock, T., Edwards, M., Fisher, S., Jones, T., Norton, P., Salmon, D., Thompson, J., Bloch Devaux, B., Colas, P., Klopfenstein, C., Locci, E., Loucatos, S., Monnier, E., Perez, P., Perlas, J., Perrier, F., Rander, J., Renardy, J., Roussarie, A., Schuller, J., Schwindling, J., Vallage, B., Ashman, J., Booth, C., Buttar, C., Carney, R., Cartwright, S., Combley, F., Dinsdale, M., Dogru, M., Hatfield, F., Martin, J., Parker, D., Reeves, P., Thompson, L., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Mirabito, L., Neugebauer, E., Schäfer, U., Seywerd, H., Apollinari, G., Giannini, G., Gobbo, B., Liello, F., Ragusa, F. a., Rolandi, L., Stiegler, U., Bellantoni, L., Boudreau, J., Cinabro, D., Conway, J., Cowen, D. a., Feng, Z., Ferguson, D., Grahl, J., Harton, J., Jacobsen, J., Jared, R. a., Johnson, R., Leclaire, B., Pater, J., Saadi, Y., Sharma, V., Shi, Z., Tang, Y., Walsh, A., Wear, J., Weber, F., Whitney, M., Wu, S., Zobernig, G., D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, W., Wu, Z., Ajaltouni, M., Bardadin Otwinowska, A., Falvard, R., El Fellou, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, E. R., Nielsen, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, M. R., Saich, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, E., Neugebauer, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, J. F., Boudreau, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Lan Wu, Sau, and G., Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Electroweak interaction, Virtual particle, Radiation, Charged particle, Nuclear physics, Pair production, High Energy Physics::Experiment, Particle Physics - Experiment, Communication channel, Lepton
Abstract: In a sample of 200 000 Z decays, events with two leptons and an additional pair of charged particles are studied. The 35 events found show a possible excess in the tau channel compared with the expectation from electroweak processes. The features of the events are consistent with radiation of virtual photons.
Published: 1991

36. Measurement of the charged particle multiplicity distribution in hadronic Z decays

Author: Décamp, D, Deschizeaux, B, Goy, C, Lees, J P, Minard, M N, Alemany, R, Crespo, J M, Delfino, M C, Fernández, E, Gaitan, V, Garrido, L, Mir, M L, Pacheco, A, Catanesi, M G, Creanza, D, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W B, Bauerdick, L A T, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Brown, D, Burnett, T H, Drevermann, H, Forty, Roger W, Grab, C, Hagelberg, R, Haywood, S, Hilgart, J M, Jost, B, Kasemann, M, Knobloch, J, Lacourt, A, Lançon, E, Lehraus, Ivan, Lohse, T, Lusiani, A, Marchioro, A, Martínez, M, Mato, P, Menary, S R, Minten, Adolf G, Miotto, A, Miquel, R, Moser, H G, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, Saich, M, Schlatter, W D, Schmelling, M, Takashima, M, Tejessy, W, Wachsmuth, H W, Wasserbaech, S R, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Badaud, F, Bardadin-Otwinowska, Maria, Bencheikh, A M, El-Fellous, R, Falvard, A, Gay, P, Guicheney, C, Harvey, J, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Stimpfl, G, Bertelsen, H, Hansen, F, Hansen, J D, Hansen, J R, Hansen, P H, Lindhal, A, Møllerud, R, Nilsson, B S, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Fouque, G, Gamess, A, Guirlet, R, Orteu, S, Rosowsky, A, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Candlin, D J, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Passalacqua, L, Pepé-Altarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J A, Lynch, J G, Morton, W T, Raine, C, Scarr, J M, Smith, K, Thompson, A S, Turnbull, R M, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E E, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A T, Beuselinck, R, Binnie, David M, Cameron, W, Cattaneo, M, Dornan, Peter J, Dugeay, S, Greene, A M, Hassard, J F, Lieske, N M, Patton, S J, Payne, D G, Phillips, M J, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Patel, A D, Rowlingson, B S, Sloan, Terence, Snow, S W, Whelan, E P, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, H G, Schmidt, H, Steeg, F, Walther, S M, Wolf, B, Aubert, Jean-Jacques, Benchouk, C, Bernard, V, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Rousseau, D, Schwemling, P, Talby, M, Becker, H, Blum, Walter, Cattaneo, Paolo Walter, Cowan, G D, Dehning, Bernd, Dietl, H, Dydak, Friedrich, Fernández-Bosman, M, Hansl-Kozanecka, Traudl, Jahn, A, Kozanecki, Witold, Lange, E, Lauber, J, Lütjens, G, Lutz, Gerhard, Männer, W, Richter, R H, Schröder, J, Schwarz, A S, Settles, Ronald, Stierlin, U, Saint-Denis, R, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Cordier, A, Davier, M, Ganis, G, Grivaz, J F, Heusse, P, Janot, P, Kim, D W, Le Diberder, F R, Lefrançois, J, Lutz, A M, Veillet, J J, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M A, Dell'Orso, R, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Gatto, C, Giassi, A, Giorgi, M A, Ligabue, F, Mannelli, E B, Marrocchesi, P S, Messineo, A, Palla, Fabrizio, Sanguinetti, G, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P G, Walsh, J, Carter, J M, Green, M G, March, P V, Medcalf, T, Quazi, I S, Strong, J A, Thomas, R M, West, L R, Wildish, T, Botterill, David R, Clifft, R W, Edgecock, T R, Edwards, M, Fisher, S M, Jones, T J, Norton, P R, Salmon, D P, Thompson, J C, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Locci, E, Loucatos, Sotirios S, Monnier, E, Pérez, P, Perlas, J A, Perrier, F, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Schwindling, J, Vallage, B, Ashman, John Gavin, Booth, C N, Buttar, C M, Carney, R E, Cartwright, S L, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martín, J, Parker, D, Reeves, P, Thompson, L F, Bach, E, Barbiero, E, Brandt, S, Burkhardt, H, Gillesen, G, Grupen, Claus, Heitner, G, Meinhard, H, Mirabito, L, Schäfer, U, Seywerd, H C J, Stupperich, C, Trier, H, Zeuner, V, Giannini, G, Gobbo, B, Ragusa, F, Rolandi, Luigi, Stiegler, U, Bellantoni, L, Cinabro, D, Conway, J S, Cowen, D F, Feng, Z, Ferguson, D P S, Gao, Y S, Grahl, J, Harton, J L, Jacobsen, J E, Jared, R C, Johnson, R P, LeClaire, B W, Pater, J R, Saadi, Y, Sharma, V, Shi, Z H, Tang, Y H, Walsh, A M, Wear, J A, Weber, F V, Whitney, M H, Wu Sau Lan, Zobernig, G, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, A., Marchioro, M., Martinez, P., Mato, S., Menary, T., Meyer, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, H., Rotscheidt, M., Saich, D., Schlatter, M., Schmelling, W., Tejessy, H., Wachsmuth, S., Wasserbaech, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, J., Harvey, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. 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Edgecock, Tr, Edwards, M, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perlas, Ja, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Schwindling, J, Vallage, B, Ashman, Jg, Booth, Cn, Buttar, C, Carney, Re, Cartwright, S, Combley, F, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, Lf, Barberio, E, Brandt, S, Grupen, C, Meinhard, H, Mirabito, L, Schafer, U, Seywerd, H, Ganis, G, Giannini, G, Gobbo, B, Ragusa, F, Stiegler, U, Bellantoni, L, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Ferguson, Dp, Grahl, J, Harton, Jl, Jared, Rc, Johnson, Rp, Leclaire, Bw, Lishka, C, Pan, Yb, Pater, Jr, Saadi, Y, Sharma, V, Shi, Zh, Tang, Yh, Walsh, Am, Wear, Ja, Weber, Fv, Whitney, Mh, Wu, Sl, Zobernig, G, Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 S. t., Lees, J, Minard, M, Crespo, J, Mir, L, Catanesi, M, Atwood, W, Bauerdick, L, Burnett, T, Forty, R, Lusiani, A, Moser, H, Bencheikh, A, Montret, J, Hansen, J, Hansen, P, Brient, J, Candlin, D, Murtas, G, Halley, A, Lynch, J, Morton, W, Scarr, J, Turnbull, R, Kluge, E, Belk, A, Binnie, D, Dornan, P, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Tomalin, I, Wright, A, Bowdery, C, Brodbeck, T, Finch, A, Keemer, N, Snow, S, Whelan, E, Sander, H, Walther, S, Aubert, J, Grivaz, J, Gros, M, Kim, D, Lutz, A, Veillet, J, Amendolia, S, Ciocci, M, Giorgi, M, Ligabue, F, Mannelli, E, Verdini, P, Carter, J, Green, M, March, P, Strong, J, West, L, Botterill, D, Clifft, R, Edgecock, T, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Perlas, J, Renardy, J, Schuller, J, Ashman, J, Booth, C, Carney, R, Thompson, L, Cowen, D, Ferguson, D, Harton, J, Jared, R, Johnson, R, Leclaire, B, Pater, J, Shi, Z, Tang, Y, Walsh, A, Wear, J, Weber, F, Whitney, M, and Wu, S
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, E+E ANNIHILATION, PP COLLISIONS, Distribution (number theory), Electron–positron annihilation, QUARK, Hadron, PETRA ENERGIES, Resonance (particle physics), Charged particle, Nuclear physics, MONTE-CARLO, High Energy Physics::Experiment, FRAGMENTATION, Scaling, Particle Physics - Experiment
Abstract: The charged particle multiplicity distribution of hadronic Z decays was measured on the peak of the Z resonance using the ALEPH detector at LEP. Using a model independent unfolding procedure the distribution was found to have a mean = 20.85 +/- 0.24 and a dispersion D = 6.34 +/- 0.12. Comparison with lower energy data supports the KNO scaling hypothesis in the energy range square-root s = 29-91.25 GeV. At square-root s = 91.25 GeV the shape of the multiplicity distribution is well described by a log-normal distribution, as predicted from a cascading model for multi-particle production. The same model also successfully describes the energy dependence of the mean and width of the multiplicity distribution. A next-to-leading order QCD prediction in the frame-work of the modified leading-log approximation and local parton-hadron duality is found to fit the energy dependence of the mean but not the width of the charged multiplicity distribution, indicating that the width of the multiplicity distribution is a sensitive probe for higher order QCD or non-perturbative effects.
Published: 1991

37. Measurement of charge asymmetry in hadronic Z decays

Author: Décamp, D, Deschizeaux, B, Goy, C, Lees, J P, Minard, M N, Alemany, R, Crespo, J M, Delfino, M C, Fernández, E, Gaitan, V, Garrido, L, Mato, P, Mir, L M, Pacheco, A, Catanesi, M G, Creanza, D, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W B, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Brown, D, Burnett, T H, Drevermann, H, Dydak, Friedrich, Forty, Roger W, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Knobloch, J, Lacourt, A, Lançon, E, Lehraus, Ivan, Lohse, T, Marchioro, A, Martínez, M, May, J, Menary, S R, Minten, Adolf G, Miotto, A, Miquel, R, Moser, H G, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, Saint-Denis, R, Schlatter, W D, Takashima, M, Talby, M, Tejessy, W, Wachsmuth, H W, Wasserbaech, S R, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Falvard, A, El-Fellous, R, Gay, P, Harvey, J, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Stimpfl, G, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Nielsen, E R, Nilsson, B S, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Fouque, G, Gamess, A, Guirlet, R, Lemoine, C, Matricon, P, Maubras, M, Morano, R, Miné, P, Parey, J Y, Poilleux, P, Orteu, S, Rosowsky, A, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Candlin, D J, Veitch, E, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Chiarella, V, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Massimo-Brancaccio, F, Murtas, F, Murtas, G P, Nicoletti, G, Passalacqua, L, Pepé-Altarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J A, Lynch, J G, Morton, W T, Raine, C, Scarr, J M, Smith, K, Thompson, A S, Turnbull, R M, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E E, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A T, Beuselinck, R, Binnie, David M, Cameron, W, Cattaneo, M, Dornan, Peter J, Dugeay, S, Greene, A M, Hassard, J F, Lieske, N M, Patton, S J, Payne, D G, Phillips, D G, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Patel, A D, Rowlingson, B S, Sloan, Terence, Snow, S W, Whelan, E P, Barczewski, T, Bauerdick, L A T, Kleinknecht, K, Renk, B, Roehn, S, Sander, H G, Schmelling, M, Schmidt, H, Steeg, F, Albanese, J P, Aubert, Jean-Jacques, Benchouk, C, Bernard, V, Bonissent, A, Courvoisier, D, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Becker, H, Blum, Walter, Cattaneo, Paolo Walter, Cowan, G D, Dehning, Bernd, Dietl, H, Fernández-Bosman, M, Hansl-Kozanecka, Traudl, Jahn, A, Kozanecki, Witold, Lange, E, Lütjens, G, Lutz, Gerhard, Männer, W, Richter, R H, Schröder, J, Schwarz, A, Settles, Ronald, Stierlin, U, Thomas, J, Wolf, G, Bertin, V, De Bouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, J F, Heusse, P, Janot, P, Journé, V, Kim, D W, Lefrançois, J, Lutz, A M, Veillet, J J, Videau, I, Zhang, Z, Zomer, F, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M A, Dell'Orso, R, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, M A, Ligabue, F, Lusiani, A, Mannelli, E B, Marrocchesi, P S, Messineo, A, Moneta, L, Palla, Fabrizio, Sanguinetti, G, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, 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Harton, J L, Jacobsen, J E, Jared, R C, Johnson, R P, LeClaire, B W, Pater, J R, Saadi, Y, Sharma, V, Walsh, M A, Wear, J A, Weber, F V, Whitney, M H, Wu Sau Lan, Zho, Z L, Zobernig, G, D., Decamp, B., Deschizeaux, C., Goy, J. 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S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, A., Falvard, R., El Fellou, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhiére, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, E. R., Nielsen, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Massimo Brancaccio, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, L. A. T., Bauerdick, K., Kleinknecht, B., Renk, S., Roehn, A. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberber, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Viannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, M. R., Saich, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, E., Neugebauer, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, L., Rolandi, U., Stiegler, L., Bellantoni, J. F., Boudreau, D., Cinabro, J. S., Conway, D. F., Cowen, A. J., Deweerd, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Lan Wu, Sau, Z. L., Zhou, and G., Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, Electron–positron annihilation, Electroweak interaction, Hadron, Weinberg angle, Charge (physics), Asymmetry, Standard Model, Nuclear physics, Momentum, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, media_common
Abstract: A significant charge asymmetry is observed in the hadronic Z decays with the ALEPH detector at LEP. The asymmetry expressed in terms of the difference in momentum weighted charges in the two event hemispheres is measured to be − = −0.0084±0.0015 (stat.) ±0.0004 (exp. sys.). In the framework of the standard model this can be interpreted as a measurement of the effective electroweak mixing angle, sin2Ow (Mz2=0.2300±0.0034 (stat.) ±0.0010 (exp. sys.) ±0.0038 (theor. sys.) or of the ratio of the vector to axual- vector coupling costants of the electron, gvegAe=+0.073±0.024.
Published: 1991

38. Measurement of the τ lepton lifetime

Author: Buskulic, D., Casper, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Lucotte, A., Minard, M.N., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J.M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, L., Martinez, M., Orteu, S., Pacheco, A., Padilla, C., Palla, F., Pascual, A., Perlas, J.A., Sanchez, F., Teubert, F., Colaleo, A., Creanza, D., De Palma, M., Farilla, A., Gelao, G., Girone, M., Iaselli, G., Maggi, G., Maggi, M., Marinelli, N., Natali, S., Nuzzo, S., Ranieri, A., Raso, G., Romano, F., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Zito, G., Huang, X., Lin, Jiali, Ouyang, Q., Wang, T., Xie, Y., Xu, R., Xue, S., Zhang, J., Zhang, L., Zhao, W., Bonvicini, G., Cattaneo, M., Comas, P., Coyle, P., Drevermann, H., Engelhardt, A., Forty, R.W., Frank, M., Hagelberg, R., Harvey, J., Jacobsen, R., Janot, P., Jost, B., Knobloch, J., Lehraus, I., Markou, C., Martin, E.B., Mato, P., Meinhard, H., Minten, A., Miquel, R., Oest, T., Palazzi, P., Pater, J.R., Pusztaszeri, J.F., Ranjard, F., Rensing, P., Rolandi, L., Schlatter, D., Schmelling, M., Schneider, O., Tejessy, W., Tomalin, I.R., Venturi, A., Wachsmuth, H., Wiedenmann, W., Wildish, T., Witzeling, W., Wotschack, J., Ajaltouni, Ziad, Bardadin-Otwinowska, M., Barres, A., Boyer, Claudine, Falvard, Alain, Gay, Pascal, Guicheney, C., Henrard, Pierre, Jousset, J., Michel, B., Monteil, S., Montret, Jean-Claude, Pallin, D., Perret, Pascal, Podlyski, F., Proriol, Joseph, Rossignol, J.M., Saadi, F., Fearnley, T., Hansen, J.B., Hansen, J.D., Hansen, J.R., Hansen, P.H., Nilsson, B.S., Kyriakis, A., Simopoulou, E., Siotis, I., Vayaki, A., Zachariadou, K., Blondel, A., Bonneaud, G., Brient, J.C., Bourdon, P., Passalacqua, L., Rouge, A., Rumpf, M., Tanaka, R., Valassi, A., Verderi, M., Videau, H., Candlin, D.J., Parsons, M.I., Focardi, E., Parrini, G., Corden, M., Delfino, M., Georgiopoulos, C., Jaffe, D.E., Antonelli, A., Bencivenni, G., Bologna, G., Bossi, F., Campana, P., Capon, G., Chiarella, V., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G.P., Pepe-Altarelli, M., Dorris, S.J., Halley, A.W., Ten Have, I., Knowles, I.G., Lynch, J.G., Morton, W.T., O'Shea, V., Raine, C., Reeves, P., Scarr, J.M., Smith, K., Smith, M.G., Thompson, A.S., Thomson, F., Thorn, S., Turnbull, R.M., Becker, U., Braun, O., Geweniger, C., Graefe, G., Hanke, P., Hepp, V., Kluge, E.E., Putzer, A., Rensch, B., Schmidt, M., Sommer, J., Stenzel, H., Tittel, K., Werner, S., Wunsch, M., Beuselinck, R., Binnie, D.M., Cameron, W., Colling, D.J., Dornan, P.J., Konstantinidis, N., Moneta, L., Moutoussi, A., Nash, J., San Martin, G., Sedgbeer, J.K., Stacey, A.M., Dissertori, G., Girtler, P., Kneringer, E., Kuhn, D., Rudolph, G., Bowdery, C.K., Brodbeck, T.J., Colrain, P., Crawford, G., Finch, A.J., Foster, F., Hughes, G., Sloan, T., Whelan, E.P., Williams, M.I., Galla, A., Greene, A.M., Kleinknecht, K., Quast, G., Raab, J., Renk, B., Sander, H.G., Wanke, R., Van Gemmeren, P., Zeitnitz, C., Aubert, J.J., Bencheikh, A.M., Benchouk, C., Bonissent, A., Bujosa, G., Calvet, D., Carr, J., Diaconu, C., Etienne, F., Thulasidas, M., Nicod, D., Payre, P., Rousseau, D., Talby, M., Abt, I., Assmann, R., Bauer, C., Blum, W., Brown, D., Dietl, H., Dydak, F., Ganis, G., Gotzhein, C., Jakobs, K., Kroha, H., Lutjens, G., Lutz, G., Manner, W., Moser, H.G., Richter, R., Rosado-Schlosser, A., Schael, S., Settles, R., Seywerd, H., Stierlin, U., Wolf, G., Alemany, R., Boucrot, J., Callot, O., Cordier, A., Courault, F., Davier, M., Duflot, L., Grivaz, J.F., Heusse, P., Jacquet, M., Kim, D.W., Le Diberder, F., Lefrancois, J., Lutz, A.M., Musolino, G., Nikolic, I., Park, H.J., Park, I.C., Schune, M.H., Simion, S., Veillet, J.J., Videau, I., Abbaneo, D., Azzurri, P., Bagliesi, G., Batignani, G., Bettarini, S., Bozzi, C., Calderini, G., Carpinelli, M., Ciocci, M.A., Ciulli, V., Dell'Orso, R., Fantechi, R., Ferrante, I., Foa, L., Forti, F., Giassi, A., Giorgi, M.A., Gregorio, A., Ligabue, F., Lusiani, A., Marrocchesi, P.S., Messineo, A., Rizzo, G., Sanguinetti, G., Sciaba, A., Spagnolo, P., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Vannini, C., Verdini, P.G., Walsh, J., Betteridge, A.P., Blair, G.A., Bryant, L.M., Cerutti, F., Gao, Y., Green, M.G., Johnson, D.L., Medcalf, T., Mir, L.M., Perrodo, P., Strong, J.A., Bertin, V., Botterill, D.R., Clifft, R.W., Edgecock, T.R., Haywood, S., Edwards, M., Maley, P., Norton, P.R., Thompson, J.C., Bloch-Devaux, B., Colas, P., Duarte, H., Emery, S., Kozanecki, W., Lancon, E., Lemaire, M.C., Locci, E., Marx, B., Perez, P., Rander, J., Renardy, J.F., Rosowsky, A., Roussarie, A., Schuller, J.P., Schwindling, J., Si Mohand, D., Trabelsi, A., Vallage, B., Johnson, R.P., Kim, H.Y., Litke, A.M., McNeil, M.A., Taylor, G., Beddall, A., Booth, C.N., Boswell, R., Cartwright, S., Combley, F., Dawson, I., Koksal, A., Letho, M., Newton, W.M., Rankin, C., Thompson, L.F., Bohrer, A., Brandt, S., Cowan, G., Feigl, E., Grupen, C., Lutters, G., Minguet-Rodriguez, J., Rivera, F., Saraiva, P., Smolik, L., Stephan, F., Apollonio, N., Bosisio, L., Della Marina, R., Giannini, G., Gobbo, B., Ragusa, F., Rothberg, J., Wasserbaech, S., Armstrong, S.R., Bellantoni, L., Elmer, P., Feng, Z., Ferguson, D.P.S., Gao, Y.S., Gonzales, S., Grahl, J., Harton, J.L., Hayes, O.J., Hu, H., McNamara III, P.A., Nachtman, J.M., Orejudos, W., Pan, Y.B., Saadi, Y., Schmitt, M., Scott, I.J., Sharma, V., Turk, J.D., Walsh, A.M., Wu, S.L., Wu, X., Yamartino, J.M., Zheng, M., Zobernig, G., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), ALEPH, Chadelas, Michèle, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, F., Ariztizabal, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, A., Pascual, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, T. H., Burnett, H., Drevermann, R. W., Forty, R., Hagelberg, S., Haywood, J., Hilgart, R., Jacobsen, B., Jost, M., Kasemann, J., Knobloch, E., Lançon, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, T., Mattison, H., Meinhard, S., Menary, T., Meyer, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, J. A., Perla, F., Ranjard, G., Redlinger, L., Rolandi, A., Roth, J., Rothberg, T., Ruan, M., Saich, D., Schlatter, M., Schmelling, W., Tejessy, H., Wachsmuth, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, B., Pietrzyk, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J. C., Brient, G., Fouque, A., Game, J., Harvey, S., Orteu, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, M. I., Parson, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, S., Wasserbaech, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, L., Passalacqua, M., Pepe Altarelli, P., Picchi, B., Altoon, O., Boyle, P., Colrain, A. W., Halley, I., ten Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, D. J., Colling, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, D., Jackson, N. R., Keemer, M., Nuttall, A., Patel, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, S., Papalexiou, P., Payre, Z., Qian, D., Rousseau, P., Schwemling, M., Talby, S., Adlung, H., Becker, W., Blum, D., Brown, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, M., Frank, T., Hansl Kozanecka, J., Lauber, G., Lütjen, G., Lutz, W., Männer, Y., Pan, R., Richter, H., Rotscheidt, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, U., Stiegler, Denis, R. S. t., M., Takashima, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medacalf, I. S., Quazi, J. A., Strong, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, W., Kozanecki, M. C., Lemaire, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, D., Si Mohand, B., Vallage, R. P., Johnson, A. M., Litke, J., Wear, J. G., Ashman, W., Babbage, C. N., Booth, C., Buttar, R. E., Carney, S., Cartwright, F., Combley, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, C., Grupen, L., Mirabito, U., Schäfer, H., Seywerd, G., Gani, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, R. C., Jared, B. W., Leclaire, C., Lishka, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, M., Schmitt, Z. H., Shi, Y. H., Tang, A. M., Walsh, F. V., Weber, M. H., Whitney, Sau Lan, Wu, X., Wu, G., Zobernig, Buskulic, D, Casper, D, Debonis, I, Decamp, D, Ghez, P, Goy, C, Lees, J, Lucotte, A, Minard, M, Odier, P, Pietrzyk, B, Ariztizabal, F, Chmeissani, M, Crespo, J, Efthymiopoulos, I, Fernandez, E, Fernandezbosman, M, Gaitan, V, Garrido, L, Martinez, M, Orteu, S, Pacheco, A, Padilla, C, Palla, F, Pascual, A, Perlas, J, Sanchez, F, Teubert, F, Colaleo, A, Creanza, D, Depalma, M, Farilla, A, Gelao, G, Girone, M, Iaselli, G, Maggi, G, Maggi, M, Marinelli, N, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Bonvicini, G, Cattaneo, M, Comas, P, Coyle, P, Drevermann, H, Engelhardt, A, Forty, R, Frank, M, Hagelberg, R, Harvey, J, Jacobsen, R, Janot, P, Jost, B, Kneringer, E, Knobloch, J, Lehraus, I, Markou, C, Martin, E, Mato, P, Minten, A, Miquel, R, Oest, T, Palazzi, P, Pater, J, Pusztaszeri, J, Ranjard, F, Rensing, P, Rolandi, L, Schlatter, D, Schmelling, M, Schneider, O, Tejessy, W, Tomalin, I, Venturi, A, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Barres, A, Boyer, C, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, J, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Rossignol, J, Saadi, F, Fearnley, T, Hansen, J, Hansen, P, Nilsson, B, Kyriakis, A, Simopoulou, E, Siotis, I, Vayaki, A, Zachariadou, K, Blondel, A, Bonneaud, G, Brient, J, Bourdon, P, Passalacqua, L, Rouge, A, Rumpf, M, Tanaka, R, Valassi, A, Verderi, M, Videau, H, Candlin, D, Parsons, M, Focardi, E, Parrini, G, Corden, M, Delfino, M, Georgiopoulos, C, Jaffe, D, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G, Pepealtarelli, M, Dorris, S, Halley, A, Tenhave, I, Knowles, I, Lynch, J, Morton, W, Oshea, V, Raine, C, Reeves, P, Scarr, J, Smith, K, Smith, M, Thompson, A, Thomson, F, Thorn, S, Turnbull, R, Becker, U, Braun, O, Geweniger, C, Graefe, G, Hanke, P, Hepp, V, Kluge, E, Putzer, A, Rensch, B, Schmidt, M, Sommer, J, Stenzel, H, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, D, Cameron, W, Colling, D, Dornan, P, Konstantinidis, N, Moneta, L, Moutoussi, A, Nash, J, Sanmartin, G, Sedgbeer, J, Stacey, A, Dissertori, G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C, Brodbeck, T, Colrain, P, Crawford, G, Finch, A, Foster, F, Hughes, G, Sloan, T, Whelan, E, Williams, M, Galla, A, Greene, A, Kleinknecht, K, Quast, G, Raab, J, Renk, B, Sander, H, Wanke, R, Vangemmeren, P, Zeitnitz, C, Aubert, J, Bencheikh, A, Benchouk, C, Bonissent, A, Bujosa, G, Calvet, D, Carr, J, Diaconu, C, Etienne, F, Thulasidas, M, Nicod, D, Payre, P, Rousseau, D, Talby, M, Abt, I, Assmann, R, Bauer, C, Blum, W, Brown, D, Dietl, H, Dydak, F, Ganis, G, Gotzhein, C, Jakobs, K, Kroha, H, Lutjens, G, Lutz, G, Manner, W, Moser, H, Richter, R, Rosadoschlosser, A, Schael, S, Settles, R, Seywerd, H, Stdenis, R, Wolf, G, Alemany, R, Boucrot, J, Callot, O, Cordier, A, Courault, F, Davier, M, Duflot, L, Grivaz, J, Heusse, P, Jacquet, M, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Musolino, G, Nikolic, I, Park, H, Park, I, Schune, M, Simion, S, Veillet, J, Videau, I, Abbaneo, D, Azzurri, P, Bagliesi, G, Batignani, G, Bettarini, S, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, M, Ciulli, V, Dellorso, R, Fantechi, R, Ferrante, I, Fidecaro, F, Foa, L, Forti, F, Giassi, A, Giorgi, M, Gregorio, A, Ligabue, F, Lusiani, A, Marrocchesi, P, Messineo, A, Rizzo, G, Sanguinetti, G, Sciaba, A, Spagnolo, P, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Verdini, P, Walsh, J, Betteridge, A, Blair, G, Bryant, L, Cerutti, F, Gao, Y, Green, M, Johnson, D, Medcalf, T, Mir, L, Perrodo, P, Strong, J, Bertin, V, Botterill, D, Clifft, R, Edgecock, T, Haywood, S, Edwards, M, Maley, P, Norton, P, Thompson, J, Blochdevaux, B, Colas, P, Emery, S, Kozanecki, W, Lancon, E, Lemaire, M, Locci, E, Marx, B, Perez, P, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Trabelsi, A, Vallage, B, Johnson, R, Kim, H, Litke, A, Mcneil, M, Taylor, G, Beddall, A, Booth, C, Boswell, R, Cartwright, S, Combley, F, Dawson, I, Koksal, A, Letho, M, Newton, W, Rankin, C, Thompson, L, Bohrer, A, Brandt, S, Cowan, G, Feigl, E, Grupen, C, Lutters, G, Minguetrodriguez, J, Rivera, F, Saraiva, P, Smolik, L, Stephan, F, Apollonio, M, Bosisio, L, Dellamarina, R, Giannini, G, Gobbo, B, Ragusa, F, Rothberg, J, Wasserbaech, S, Armstrong, S, Bellantoni, L, Elmer, P, Feng, Z, Ferguson, D, Gonzalez, S, Grahl, J, Harton, J, Hayes, O, Hu, H, Mcnamara, P, Nachtman, J, Orejudos, W, Pan, Y, Saadi, Y, Schmitt, M, Scott, I, Sharma, V, Turk, J, Walsh, A, Wu, S, Wu, X, Yamartino, J, Zheng, M, Zobernig, G, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Deschizeaux, B, Quattromini, M, Huang, D, Lou, J, Qiao, C, Xu, D, Atwood, W, Bauerdick, L, Blucher, E, Boudreau, J, Burnett, T, Hilgart, J, Kasemann, M, Lohse, T, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Miotto, A, Redlinger, G, Roth, A, Ruan, T, Saich, M, Badaud, F, Elfellous, R, Prulhiere, F, Stimpfl, G, Mollerud, R, Badier, J, Fouque, G, Gamess, A, Rosowsky, A, Veitch, E, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Baldini, R, Dettorrepiazzoli, B, Picchi, P, Altoon, B, Boyle, O, Maitland, W, Brandl, B, Geiges, R, Maumary, Y, Stahl, A, Belk, A, Dugeay, S, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Wright, A, Jackson, D, Keemer, N, Nuttall, M, Patel, A, Snow, S, Barczewski, T, Roehn, S, Schmidt, H, Steeg, F, Walther, S, Wolf, B, Bernard, V, Drinkard, J, Papalexiou, S, Qian, Z, Schwemling, P, Adlung, S, Becker, H, Cattaneo, P, Dehning, B, Hanslkozanecka, T, Lauber, J, Rotscheidt, H, Schroder, J, Schwarz, A, Stierlin, U, Stiegler, U, Takashima, M, Thomas, J, Chen, X, Zhang, Z, Zomer, F, Amendolia, S, Bottigli, U, Bradaschia, C, Gatto, C, Mannelli, E, Carter, J, March, P, Quazi, I, West, L, Fisher, S, Jones, T, Salmon, D, Loucatos, S, Monnier, E, Perrier, F, Mohand, D, Wear, J, Ashman, J, Babbage, W, Buttar, C, Carney, R, Hatfield, F, Martin, J, Parker, D, Barberio, E, Mirabito, L, Schafer, U, Cinabro, D, Conway, J, Cowen, D, Jared, R, Leclaire, B, Lishka, C, Shi, Z, Tang, Y, Weber, F, Whitney, M, Lees, Jp, Minard, Mn, Crespo, Jm, Mir, Lm, Atwood, Wb, Bauerdick, Lat, Burnett, Th, Forty, Rw, Lusiani, Alberto, Moser, Hg, Perlas, Ja, Rolandi, Luigi, Bencheikh, Am, Montret, Jc, Hansen, Jd, Hansen, Jr, Hansen, Ph, Brient, Jc, Candlin, Dj, Parsons, Mi, Murtas, Gp, Halley, Aw, Lynch, Jg, Morton, Wt, Scarr, Jm, Turnbull, Rm, Kluge, Ee, Belk, At, Binnie, Dm, Colling, Dj, Dornan, Pj, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Keemer, Nr, Snow, Sw, Whelan, Ep, Sander, Hg, Walther, Sm, Aubert, Jj, Grivaz, Jf, Kim, Dw, Lutz, Am, Schune, Mh, Veillet, Jj, Amendolia, Sr, Ciocci, Ma, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Verdini, Pg, Carter, Jm, Green, Mg, March, Pv, Strong, Ja, West, Lr, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Lemaire, Mc, Renardy, Jf, Schuller, Jp, Johnson, Rp, Litke, Am, Ashman, Jg, Booth, Cn, Carney, Re, Thompson, Lf, Cowen, Df, Ferguson, Dp, Harton, Jl, Jared, Rc, Leclaire, Bw, Pan, Yb, Pater, Jr, Shi, Zh, Tang, Yh, Walsh, Am, Weber, Fv, Whitney, Mh, Wu, Sl, and Denis Richard/C 8997 2012 Forti Francesco/H 3035 2011 Ferrante Isidoro/F 1017 2012, RI Perrier Frederic/A 5953 2011 ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S. t.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Measurement method, Physics and Astronomy (miscellaneous), Higher education, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Process (engineering), business.industry, Visibility (geometry), Library science, Plan (drawing), 01 natural sciences, ALEPH detector, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, business, Dissemination, Particle Physics - Experiment, Open archives, Lepton
Abstract: The mean lifetime of the \tau lepton is measured in a sample of 25700 \tau pairs collected in 1992 with the ALEPH detector at LEP. A new analysis of the 1-1 topology events is introduced. In this analysis, the dependence of the impact parameter sum distribution on the daughter track momenta is taken into account, yielding improved precision compared to other impact parameter sum methods. Three other analyses of the one- and three-prong \tau decays are updated with increased statistics. The measured lifetime is 293.5 \pm 3.1 \pm 1.7 \fs. Including previous (1989--1991) ALEPH measurements, the combined \tau lifetime is 293.7 \pm 2.7 \pm 1.6 \fs.

39. AN INVESTIGATION INTO INTERMITTENCY

Author: DECAMP D, DESCHIZEAUX B, GOY C, LEES JP, MINARD MN, ALEMANY R, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, MIR LM, PACHECO A, CATANESI MG, CREANZA D, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LIN J, LOU J, QIAO C, RUAN T, WANG T, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BIRD F, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BROWN D, BURNETT TH, DREVERMANN H, FORTY RW, GRAB C, HAGELBERG R, HAYWOOD S, HILGART J, JOST B, KASEMANN M, KNOBLOCH J, LACOURT A, LANCON E, LEHRAUS I, LOHSE T, MARCHIORO A, MARTINEZ M, MATO P, MENARY S, MINTEN A, MIOTTO A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, RANJARD F, REDLINGER G, ROTH A, ROTHBERG J, ROTSCHEIDT H, SAICH M, SCHLATTER D, SCHMELLING M, TAKASHIMA M, TEJESSY W, WACHSMUTH H, WASSERBAECH S, WIEDENMANN W, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BADAUD F, BARDADINOTWINOWSKA M, BENCHEIKH AM, ELFELLOUS R, FALVARD A, GAY P, GUICHENEY C, HARVEY J, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PRORIOL J, PRULHIERE F, STIMPFL G, HANSEN JD, HANSEN PH, MOLLERUD R, NILSSON BS, EFTHYMIOPOULOS I, SIMOPOULOU E, VAYAKI A, BADIER J, BLONDEL A, BONNEAUD G, BOUROTTE J, BRAEMS F, BRIENT JC, FOUQUE G, GAMESS A, GUIRLET R, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, VEITCH E, MONETA L, PARRINI G, CORDEN M, GEORGIOPOULOS C, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, NICOLETTI G, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ZOGRAFOU P, ALTOON B, BOYLE O, HALLEY AW, TENHAVE I, HEARNS JL, LYNCH JG, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, DORNAN PJ, DUGEAY S, GREENE AM, HASSARD JF, LIESKE NM, PATTON SJ, PAYNE DG, PHILLIPS MJ, SEDGBEER JK, TAYLOR G, TOMALIN IR, WRIGHT AG, GIRTLER P, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, KEEMER NR, NUTTALL M, PATEL A, ROWLINGSON BS, SLOAN T, SNOW SW, WHELAN EP, BARCZEWSKI T, KLEINKNECHT K, RAAB J, RENK B, ROEHN S, SANDER HG, SCHMIDT H, STEEG F, WALTHER SM, WOLF B, ALBANESE JP, AUBERT JJ, BENCHOUK C, BERNARD V, BONISSENT A, COURVOISIER D, ETIENNE F, PAPALEXIOU S, PAYRE P, PIETRZYK B, QIAN Z, TALBY M, BECKER H, BLUM W, CATTANEO P, COWAN G, DEHNING B, DIETL H, DYDAK F, FERNANDEZBOSMAN M, HANSLKOZANECKA T, JAHN A, KOZANECKI W, LANGE E, LAUBER J, LUTJENS G, LUTZ G, MANNER W, PAN Y, RICHTER R, SCHRODER J, SCHWARZ AS, SETTLES R, STIERLIN U, DENIS RS, THOMAS J, WOLF G, BERTIN V, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GANIS G, GRIVAZ JF, HEUSSE P, JANOT P, KIM DW, LEDIBERDER F, LEFRANCOIS J, LUTZ AM, VEILLET JJ, VIDEAU I, ZHANG Z, ZOMER F, ABBANEO D, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, CARPINELLI M, CIOCCI MA, DELLORSO R, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GATTO C, GIASSI A, GIORGI MA, MANNELLI EB, MARROCHESI PS, MESSINEO A, PALLA F, SANGUINETTI G, STEINBERGER J, TENCHINI R, TONELLI G, TRIGGIANI G, VANNINI C, VENTURI A, VERDINI PG, WALSH J, CARTER JM, GREEN MG, MARCH PV, MEDCALF T, QUAZI IS, STRONG JA, THOMAS RM, WEST LR, WILDISH T, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, BLOCHDEVAUX B, COLAS P, KLOPFENSTEIN C, LOCCI E, LOUCATOS S, MONNIER E, PEREZ P, PERLAS JA, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, SCHWINDLING J, VALLAGE B, ASHMAN JG, BOOTH CN, BUTTAR C, CARNEY R, CARTWRIGHT S, COMBLEY F, DINSDALE M, DOGRU M, HATFIELD F, MARTIN J, PARKER D, REEVES P, THOMPSON LF, BARBERIO E, BRANDT S, BURKHARDT H, GRUPEN C, MEINHARD H, MIRABITO L, SCHAFER U, SEYWERD H, GIANNINI G, GOBBO B, RAGUSA F, ROLANDI L, STIEGLER U, BELLANTONI L, CINABRO D, CONWAY JS, COWEN DF, FENG Z, FERGUSON DPS, GAO YS, GRAHL J, HARTON JL, JACOBSEN JE, JARED RC, JOHNSON RP, LECLAIRE BW, PAN YB, PATER JR, SAADI Y, SHARMA V, SHI ZH, TANG YH, WALSH AM, WEAR JA, WEBER FV, WHITNEY MH, WU SL, ZOBERNIG G., LUSIANI, Alberto, LIGABUE, FRANCO, Decamp, D, Deschizeaux, B, Goy, C, Lees, Jp, Minard, Mn, Alemany, R, Crespo, Jm, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, Lm, Pacheco, A, Catanesi, Mg, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, Wb, Bauerdick, Lat, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Brown, D, Burnett, Th, Drevermann, H, Forty, Rw, Grab, C, Hagelberg, R, Haywood, S, Hilgart, J, Jost, B, Kasemann, M, Knobloch, J, Lacourt, A, Lancon, E, Lehraus, I, Lohse, T, Lusiani, Alberto, Marchioro, A, Martinez, M, Mato, P, Menary, S, Minten, A, Miotto, A, Miquel, R, Moser, Hg, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A, Rothberg, J, Rotscheidt, H, Saich, M, Schlatter, D, Schmelling, M, Takashima, M, Tejessy, W, Wachsmuth, H, Wasserbaech, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadinotwinowska, M, Bencheikh, Am, Elfellous, R, Falvard, A, Gay, P, Guicheney, C, Harvey, J, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Stimpfl, G, Hansen, Jd, Hansen, Ph, Mollerud, R, Nilsson, B, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Fouque, G, Gamess, A, Guirlet, R, Orteu, S, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, Dj, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Passalacqua, L, Pepealtarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Turnbull, Rm, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Patel, A, Rowlingson, B, Sloan, T, Snow, Sw, Whelan, Ep, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, Hg, Schmidt, H, Steeg, F, Walther, Sm, Wolf, B, Albanese, Jp, Aubert, Jj, Benchouk, C, Bernard, V, Bonissent, A, Courvoisier, D, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Talby, M, Becker, H, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Hanslkozanecka, T, Jahn, A, Kozanecki, W, Lange, E, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Denis, R, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Kim, Dw, Lediberder, F, Lefrancois, J, Lutz, Am, Veillet, Jj, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, Ma, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Gatto, C, Giassi, A, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Marrochesi, P, Messineo, A, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, Pg, Walsh, J, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Quazi, I, Strong, Ja, Thomas, Rm, West, Lr, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perlas, Ja, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Schwindling, J, Vallage, B, Ashman, Jg, Booth, Cn, Buttar, C, Carney, R, Cartwright, S, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, Lf, Barberio, E, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Mirabito, L, Schafer, U, Seywerd, H, Giannini, G, Gobbo, B, Ragusa, F, Rolandi, L, Stiegler, U, Bellantoni, L, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Ferguson, Dp, Grahl, J, Harton, Jl, Jacobsen, Je, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Pater, Jr, Saadi, Y, Sharma, V, Shi, Zh, Tang, Yh, Walsh, Am, Wear, Ja, Weber, Fv, Whitney, Mh, Wu, Sl, Zobernig, G., Lees, J, Minard, M, Crespo, J, Mir, L, Catanesi, M, Atwood, W, Bauerdick, L, Burnett, T, Forty, R, Lusiani, A, Moser, H, Bencheikh, A, Montret, J, Hansen, J, Hansen, P, Brient, J, Candlin, D, Murtas, G, Halley, A, Hearns, J, Lynch, J, Morton, W, Scarr, J, Turnbull, R, Kluge, E, Belk, A, Binnie, D, Dornan, P, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Tomalin, I, Wright, A, Bowdery, C, Brodbeck, T, Finch, A, Keemer, N, Snow, S, Whelan, E, Sander, H, Walther, S, Albanese, J, Aubert, J, Grivaz, J, Kim, D, Lutz, A, Veillet, J, Amendolia, S, Ciocci, M, Giorgi, M, Ligabue, F, Mannelli, E, Verdini, P, Carter, J, Green, M, March, P, Strong, J, Thomas, R, West, L, Botterill, D, Clifft, R, Edgecock, T, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Perlas, J, Renardy, J, Schuller, J, Ashman, J, Booth, C, Thompson, L, Cowen, D, Ferguson, D, Harton, J, Jacobsen, J, Jared, R, Johnson, R, Leclaire, B, Pater, J, Shi, Z, Tang, Y, Walsh, A, Wear, J, Weber, F, Whitney, M, Wu, S, Zobernig, G, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, J., Boudreau, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lan�on, I., Lehrau, T., Lohse, A., Lusiani, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, M., Saich, D., Schlatter, M., Schmelling, M., Takashima, W., Tejessy, H., Wachsmuth, S., Wasserbaech, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, F., Badaud, M., Bardadin Otwinowska, A. M., Bencheikh, R., Fellou, A., Falvard, P., Gay, C., Guicheney, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhi�re, G., Stimpfl, J. D., Hansen, P. H., Hansen, R., M�llerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Roug�, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, L., Moneta, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, M., Talby, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., L�tjen, G., Lutz, W., M�nner, Y., Pan, R., Richter, J., Schr�der, A. S., Schwarz, R., Settle, U., Stierlin, Denis, R. S. t., J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Diberder, J., Lefran�oi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Fo�, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrochesi, A., Messineo, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, U., Sch�fer, H., Seywerd, G., Giannini, B., Gobbo, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, and G., Zobernig
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), RANGE, Hadron, Parton, Elementary particle, DECAYS, Gluon, Moment (physics), Transverse mass, Rapidity, High Energy Physics::Experiment, Parton shower, ANNIHILATION, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: The results of an investigation based on ALEPH data, e+ e- --> hadrons at square-root s = 91 GeV, into fluctuations in rapidity space are presented. It is found that the behaviour of the factorial moments is well represented by the Lund parton shower model. An estimate is made of the scale of fluctuations needed to describe the data. Differential moments are introduced and are used to demonstrate that within the average represented by the traditional factorial moments the pattern of fluctu10.1007/BF01483869ations is itself a strong function of rapidity. This pattern is shown to be primarily associated with the emission of hard gluons. The implied structure between the hadron clusters and partons is explored by the use of transverse mass moments. It is concluded that the principal features of the one-dimensional factorial moments, differential moments and transverse mass moments have their origin in the O(alpha(s)) matrix element, kinematic boundaries and the method of selection of the event axis.

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