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10 results on '"Hearns, J L"'

1. Measurement of the absolute luminosity with the ALEPH detector

Author

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. -P., Minard, M. -N., Alemany, R., Crespo, J. M., Delfino, M., Fernandez, E., Gaitan, V., Garrido, Ll., Mir, Ll. M., Pacheco, A., Catanesi, M. G., Creanza, D., de Palma, 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. B., Bauerdick, L. A. T., Bird, F., Blucher, E., Bonvicini, G., Bossi, F., Boudreau, J., Brown, D., Burnett, T. H., Drevermann, H., Forty, R. W., Grab, C., Hagelberg, R., Haywood, S., Hilgart, J., Jost, B., Kasemann, M., Knobloch, J., Lacourt, A., Lançon, E., Lehraus, I., Lohse, T., Lusiani, A., Marchioro, A., Martinez, M., Mato, P., Menary, S., Minten, A., Miotto, A., Miquel, R., Moser, H. -G., 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., Bardadin-Otwinowska, M., 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., Petersen, G., Efthymiopoulos, I., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., 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., Candlin, D. J., 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., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Passalacqua, L., Pepe-Altarelli, M., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., ten Have, I., Hearns, J. L., 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, D. M., Cameron, W., Cattaneo, M., Dornan, P. 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., Rowlingson, B. S., Sloan, T., 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, J. -J., 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., Fernandez-Bosman, M., Hansl-Kozanecka, T., Jahn, A., Kozanecki, W., Lange, E., Lauber, J., Lütjens, G., Lutz, G., Männer, W., Pan, Y., Richter, R., Schröder, J., Schwarz, A. S., Settles, R., Stierlin, U., Denis, R. St., Thomas, J., Wolf, G., Bertin, V., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Kim, D. W., Le Diberder, F., 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, F., Sanguinetti, G., Steinberger, J., Tenchini, R., 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, D. 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, S., Monnier, E., Perez, P., Perlas, J. A., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Schwindling, J., Vallage, B., Ashman, J. G., Booth, C. N., Buttar, C., Carney, R., Cartwright, S., Combley, F., Dinsdale, M., Dogru, M., Hatfield, F., Martin, J., Parker, D., Reeves, P., Thompson, L. F., Bach, E., Barberio, E., Brandt, S., Burkhardt, H., Gillessen, G., Grupen, C., Heitner, G., Meinhard, H., Mirabito, L., Schäfer, U., Seywerd, H., Stupperich, C., Trier, H., Zeuner, V., Giannini, G., Gobbo, B., Ragusa, F., Rolandi, L., Stiegler, U., Bellantoni, L., Chen, X., 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., Pan, Y. B., 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., and ALEPH Collaboration

Published
1992
Full Text
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2. An investigation into intermittency

Author

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. -P., Minard, M. -N., Alemany, R., Crespo, J. M., Delfino, M., Fernandez, E., Gaitan, V., Garrido, Ll., Mir, Ll. M., Pacheco, A., Catanesi, M. G., Creanza, D., de Palma, 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. B., Bauerdick, L. A. T., Bird, F., Blucher, E., Bonvicini, G., Bossi, F., Boudreau, J., Brown, D., Burnett, T. H., Drevermann, H., Forty, R. W., Grab, C., Hagelberg, R., Haywood, S., Hilgart, J., Jost, B., Kasemann, M., Knobloch, J., Lacourt, A., Lançon, E., Lehraus, I., Lohse, T., Lusiani, A., Marchioro, A., Martinez, M., Mato, P., Menary, S., Minten, A., Miotto, A., Miquel, R., Moser, H. -G., 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., Bardadin-Otwinowska, M., 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., Hansen, J. D., Hansen, P. H., Møllerud, R., Nilsson, B. S., Efthymiopoulos, I., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., 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., Candlin, D. J., 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., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Nicoletti, G., Passalacqua, L., Pepe-Altarelli, M., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., ten Have, I., Hearns, J. L., 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, D. M., Cameron, W., Cattaneo, M., Dornan, P. 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., Rowlingson, B. S., Sloan, T., 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., Albanese, J. -P., Aubert, J. -J., 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., Fernandez-Bosman, M., Hansl-Kozanecka, T., Jahn, A., Kozanecki, W., Lange, E., Lauber, J., Lütjens, G., Lutz, G., Männer, W., Pan, Y., Richter, R., Schröder, J., Schwarz, A. S., Settles, R., Stierlin, U., Denis, R. St., Thomas, J., Wolf, G., Bertin, V., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Kim, D. W., Le Diberder, F., 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., Marrochesi, P. S., Messineo, A., Palla, F., Sanguinetti, G., Steinberger, J., Tenchini, R., 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, D. 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, S., Monnier, E., Perez, P., Perlas, J. A., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Schwindling, J., Vallage, B., Ashman, J. G., Booth, C. N., Buttar, C., Carney, R., Cartwright, S., Combley, F., Dinsdale, M., Dogru, M., Hatfield, F., Martin, J., Parker, D., Reeves, P., Thompson, L. F., Barberio, E., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Mirabito, L., Schäfer, U., Seywerd, H., Giannini, G., Gobbo, B., Ragusa, F., Rolandi, L., 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., Pan, Y. B., 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., and ALEPH Collaboration

Published
1992
Full Text
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3. Improved measurements of electroweak parameters fromZ decays into fermion pairs

Author

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. -P., Minard, M. -N., Alemany, R., Crespo, J. M., Delfino, M., Fernandez, E., Gaitan, V., Garrido, Ll., Mir, Ll. M., Pacheco, A., Catanesi, M. G., Creanza, D., de Palma, 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. B., Bauerdick, L. A. T., Bird, F., Blucher, E., Bonyicini, G., Bossi, F., Boudreau, J., Brown, D., Burnett, T. H., Drevermann, H., Forty, R. W., Grab, C., Hagelberg, R., Haywood, S., Hilgart, J., Jost, B., Kasemann, M., Knobloch, J., Lacourt, A., Lançon, E., Lehraus, I., Lohse, T., Lusiani, A., Marchioro, A., Martinez, M., Mato, P., Menary, S., Minten, A., Miotto, A., Miquel, R., Moser, H. -G., Nash, J., Palazzi, P., Ranjard, F., Redlinger, G., Roth, A., Rothberg, J., Rotscheidt, H., Saich, M., Denis, R. St., Schlatter, D., Takashima, M., Talby, M., Tejessy, W., Wachsmuth, H., Wasserbaech, S., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., El Fellous, R., Falvard, A., 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., Nilsson, B. S., Efthymiopoulos, I., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., 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., Candlin, D. J., 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., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Nicoletti, G., Passalacqua, L., Pepe-Altarelli, M., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., ten Have, I., Hearns, J. L., 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, D. M., Cameron, W., Cattaneo, M., Dornan, P. 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., Rowlingson, B. S., Sloan, T., Snow, S. W., Whelan, E. P., Barczewski, T., Kleinknecht, K., Raab, J., Renk, B., Roehn, S., Sander, H. -G., Schmelling, M., Schmidt, H., Steeg, F., Walther, S. M., Wolf, B., Albanese, J. -P., Aubert, J. -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., Fernandez-Bosman, M., Hansl-Kozanecka, T., Jahn, A., Kozanecki, W., Lange, E., Lauber, J., Lütjens, G., Lutz, G., Männer, W., Pan, Y., Richter, R., Schröder, J., Schwarz, A. S., Settles, R., Stierlin, U., Thomas, J., Wolf, G., Bertin, V., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Kim, D. W., Le Diberder, F., 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., Moneta, L., Palla, F., Sanguinetti, G., Steinberger, J., Tenchini, R., 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, D. 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, S., Monnier, E., Perez, P., Perlas, J. A., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Schwindling, J., Vallage, B., Ashman, J. G., Booth, C. N., Buttar, C., Carney, R., Cartwright, S., Combley, F., Dinsdale, M., Dogru, M., Hatfield, F., Martin, J., Parker, D., Reeves, P., Thompson, L. F., Barberio, E., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Mirabito, L., Schäfer, U., Seywerd, H., Apollinari, G., Giannini, G., Gobbo, B., Liello, F., Ragusa, F., Rolandi, L., 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., Le Claire, B. W., Pan, Y. B., 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., and ALEPH Collaboration

Published
1992
Full Text
View/download PDF

4. Measurement of electroweak parameters fromZ decays into fermion pairs

Author

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. -P., Minard, M. -N., Alemany, R., Crespo, J. M., Delfino, M., Fernandez, E., Gaitan, V., Garrido, Ll., Mato, P., Miquel, R., Mir, Ll. M., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., Creanza, D., de Palma, 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, W. B., Bird, F., Blucher, E., Bonvicini, G., Bossi, F., Bourotte, J., Brown, D., Burnett, T. H., Drevermann, H., Dydak, F., Forty, R. W., Grab, C., Hagelberg, R., Haywood, S., Jost, B., Kasemann, M., Kellner, G., Knobloch, J., Lacourt, A., Lehraus, I., Lohse, T., Lüke, 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., von Rüden, W., Denis, R. St., Schlatter, D., Takashima, M., Talby, M., Taureg, H., Tejessy, W., Wachsmuth, H., Wasserbaech, S., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Falvard, A., Fellous, R. El, Gay, P., Henrard, P., Jousset, J., Michel, B., Montret, J-C., Pallin, D., Perret, P., Proriol, J., Prulhière, F., Hansen, J. D., Hansen, J. R., Hansen, P. H., Møllerud, R., Nilsson, B. S., Petersen, G., Efthymiopoulos, I., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., Braems, F., Brient, J. C., Fouque, G., Gamess, A., Guirlet, R., Rosowsky, A., Rougé, A., Rumpf, M., Tanaka, R., Videau, H., Videau, I., Candlin, D. J., 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., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Massimo Brancaccio, F., Murtas, F., Murtas, G. P., Nicoletti, G., Pepe-Altarelli, M., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., ten Have, I., Hearns, J. L., 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., Kluge, E. E., Maumary, Y., Panter, M., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Belk, A. T., Beuselinck, R., Binnie, D. M., Cameron, W., Cattaneo, M., Dornan, P. J., Dugeay, S., Greene, A. M., Hassard, J. F., Patton, S. J., Sedgbeer, J. K., Taylor, G., Tomalin, I. R., Wright, A. G., Girtler, P., Kneringer, E., Kuhn, D., Rudolph, G., Bowdery, C. K., Brodbeck, T. J., Finch, A. J., Foster, F., Hughes, G., Keemer, N. R., Nuttall, M., Rowlingson, B. S., Sloan, T., Snow, S. W., Barczewski, T., Bauerdick, L. A. T., Kleinknecht, K., Renk, B., Roehn, S., Sander, H. G., Schmelling, M., Steeg, F., Albanese, J-P., Aubert, J-J., Benchouk, C., Bernard, V., Bonissent, A., Courvoisier, D., Etienne, F., Papalexiou, S., Payre, P., Puietrzyk, B., Qian, Z., Blum, W., Cattaneo, P., Cowan, G., Dehning, B., Dietl, H., Fernandez-Bosman, M., Frank, M., Jahn, A., Lange, E., Lütjens, G., Lutz, G., Männer, W., Moser, H-G., Pan, Y., Richter, R., Schwarz, A. S., Settles, R., Stiegler, U., Stierlin, U., Thomas, J., Bertin, V., de Bouard, G., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Journé, V., Kim, D. W., Lefrançois, J., Lutz, A. M., Veillet, J. -J., Zhang, Z., Zomer, F., Amendolia, S. R., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, U., Bradaschia, C., Ciocci, M. A., 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., Palla, F., Sanguinetti, G., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Carter, J. M., Green, M. G., March, P. V., Medcalf, T., Saich, M. R., Strong, J. A., Thomas, R. M., Wildish, T., Botterill, D. R., Clifft, R. W., Edgecock, T. R., Edwards, M., Fisher, S. M., Harvey, J., Jones, T. J., Norton, P. R., Salmon, D. P., Thompson, J. C., Bloch-Devaux, B., Colas, P., Klopfenstein, C., Lançon, E., Locci, E., Loucatos, S., Mirabito, L., Monnier, E., Perez, P., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Ashman, J. G., Booth, C. N., Combley, F., Dinsdale, M., Martin, J., Parker, D., Thompson, L. F., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Neugebauer, E., Schäfer, U., Seywerd, H., Apollinari, G., Giannini, G., Gobbo, B., Liello, F., Milotti, E., Rolandi, L., Bellantoni, L., Boudreau, J. F., Cinabro, D., Conway, J. S., Cowen, D. F., DeWeerd, A. J., Feng, Z., Ferguson, D. P. S., Gao, Y. S., Harton, J. L., Hilgart, J., Jacobsen, J. E., Jared, R. C., Johnson, R. P., LeClaire, B. W., Pan, Y. B., Parker, T., Pater, J. R., Saadi, Y., Sharma, V., Wear, J. A., Weber, F. V., Lan Wu, Sau, Zobernig, G., and ALEPH Collaboration

Published
1990
Full Text
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5. Measurement of the $B-\overline{B}$ mixing at the Z

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, M L, 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, 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 L, 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, 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, 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 S, 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 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, 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, Zhou, Z L, and Zobernig, G

Subjects
Particle Physics - Experiment
Published
1990

6. Measurement of electroweak parameters from Z decays into fermion pairs

Author

Décamp, D, Deschizeaux, B, Giy, 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, M L, 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, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, W B, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Bourotte, J, 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, Taureg, Hans, 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, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Nilsson, B S, Petersen, G, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Braems, F, Brient, J C, Fouque, G, Gamess, A, Guirlet, R, Rosowsky, A, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Videau, I, Candlin, D J, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Stimpfl, G, 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, Pepé-Altarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J L, 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, Kluge, E E, Maumary, Y, Panter, M, 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, Patton, S J, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Rowlingson, B S, Sloan, Terence, Snow, S W, Barczewski, T, Bauerdick, L A T, Kleinknecht, K, Renk, B, Roehn, S, Sander, H G, Schmelling, M, 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, Frank, M, Jahn, A, Lange, E, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Schwarz, A, Settles, Ronald, Stiegler, U, Stierlin, U, Thomas, J, 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, Zhang, Z, Zomer, F, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ciocci, M A, 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, Palla, Fabrizio, Sanguinetti, G, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Carter, J M, Green, M G, March, P V, Medcalf, T, Saich, M R, Strong, J A, Thomas, R M, Wildish, T, Botterill, David R, Clifft, R W, Edgecock, T R, Edwards, M, Fisher, S M, Harvey, J, Jones, T J, Norton, P R, Salmon, D P, Thompson, J C, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Lançon, E, Locci, E, Loucatos, Sotirios S, Mirabito, L, Monnier, E, Pérez, P, Perrier, F, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Ashman, John Gavin, Booth, C N, Combley, F, Dinsdale, M, Martín, J, Parker, D, Thompson, L F, Brandt, S, Burkhardt, H, Grupen, Claus, Meinhard, H, Neugebauer, E, Schäfer, U, Seywerd, H C J, Stupperich, K, Apollinari, G, Giannini, G, Gobbo, B, Liello, F, Milotti, E, Rolandi, Luigi, 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, Harton, J L, Hilgart, J M, Jacobsen, J E, Jared, R C, Johnson, R P, LeClaire, B W, Pan Yi Bin, Parker, T, Pater, J R, Saadi, Y, Sharma, V, Wear, J A, Weber, F V, Wu Sau Lan, and Zobernig, G

Subjects
Physics, Coupling constant, Particle physics, Physics and Astronomy (miscellaneous), media_common.quotation_subject, Electron–positron annihilation, Electroweak interaction, Weinberg angle, Fermion, Asymmetry, Nuclear physics, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Lepton, media_common
Abstract

We report on the properties of theZ resonance from 62 500Z decays into fermion pairs collected with the ALEPH detector at LEP, the Large Electron-Positron storage ring at CERN. We findMZ=(91.193±0.016exp±0.030LEP) GeV, ΓZ=(2497±31) MeV, σhad0=(41.86±0.66)nb, and for the partial widths Γinv=(489±24) MeV, Γhad(1754±27) MeV, Γee=(85.0±1.6)MeV, Γμμ=(80.0±2.5) MeV, and Γττ=(81.3±2.5) MeV, all in good agreement with the Standard Model. Assuming lepton universality and using a lepton sample without distinction of the final state we measure Γu=(84.3±1.3) MeV. The forward-backward asymmetry in leptonic decays is used to determine the vector and axial-vector weak coupling constants of leptors,gv2(MZ2)=(0.12±0.12)×10−2 andgA2(MZ2)=0.2528±0.0040. The number of light neutrino species isNν=2.91±0.13; the electroweak mixing angle is sin2θW(MZ2)=0.2291±0.0040.

Published
1990

7. Search For Neutralino Production In Z Decays

Author

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. -P., Minard, M. -N., Crespo, J. M., Delfino, M., Fernandez, E., Mato, P., Miquel, R., Mir, Ll. M., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., de Palma, 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, W. B., Bird, F., Blucher, E., Brown, D., Burnett, T. H., Drevermann, H., Dydak, F., Forty, R. W., Garrido, Ll., Grab, C., Hagelberg, R., Haywood, S., Jost, B., Kasemann, M., Kellner, G., Knobloch, J., Lacourt, A., Lehraus, I., Lohse, T., Lüke, D., Marchioro, A., Martinez, M., May, J., Menary, S., Minten, A., Miotto, A., Palazzi, P., Pepe-Altarelli, M., Ranjard, F., Roth, A., Rothberg, J., Rotscheidt, H., von Rüden, W., St. Denis, R., Schlatter, D., Takashima, M., Talby, M., Taureg, H., Tejessy, W., Wachsmuth, W., Wasserbaech, S., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Falvard, A., Gay, P., Henrard, P., Jousset, J., Michel, B., Montret, J. -C., Pallin, D., Perret, P., Proriol, J., Prulhière, F., Hansen, J. D., Hansen, J. R., Hansen, P. H., Møllerud, R., Nilsson, B. S., Petersen, G., Efthymiopoulos, I., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., Bourotte, J., Braems, F., Brient, J. C., Ciocci, M. A., Fouque, G., Guirlet, R., Rougé, A., Rumpf, M., Tanaka, R., Videau, H., Videau, I., Candlin, D. J., 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., Bossi, F., Campana, P., Capon, G., Chiarella, V., de Ninno, G., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Nicoletti, G., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., Ten Have, I., Hearns, J. L., 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., Kluge, E. E., Maumary, Y., Panter, M., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Belk, A. T., Beuselinck, R., Binnie, D. M., Cameron, W., Cattaneo, M., Dornan, P. J., Dugeay, S., Greene, A. M., Hassard, J. F., Patton, S. 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., Rowlingson, B. S., Sloan, T., Snow, S. W., Barczewski, T., Bauerdick, L. A. T., Kleinknecht, K., Renk, B., Roehn, S., Sander, H. -G., Schmelling, M., Steeg, F., Albanese, J. -P., Aubert, J. -J., 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., Fernandez-Bosman, M., Jahn, A., Lange, E., Lütjens, G., Lutz, G., Männer, W., Moser, H. -G., Pan, Y., Richter, R., Schwarz, A. S., Settles, R., Stiegler, U., Stierlin, U., Thomas, J., Bertin, V., de Bouard, G., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Journé, V., Kim, D. W., Lefrançois, J., Lutz, A. -M., Veillet, J. -J., Zomer, F., Amendolia, S. R., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, U., Bradaschia, C., Ferrante, I., Fidecaro, F., Faà, L., Focardi, E., Forti, F., Giassi, A., Giorgi, M. A., Ligabue, F., Lusiani, A., Mannelli, E. B., Marrocchesi, P. S., Messineo, A., Palla, F., Sanguinetti, G., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Carter, J. M., Green, M. G., March, P. V., Medcalf, T., Saich, M. R., Strong, J. A., Thomas, R. M., Wildish, T., Botterill, D. R., Clifft, R. W., Edgecock, T. R., Edwards, M., Fisher, S. M., Harvey, J., Jones, T. J., Norton, P. R., Salmon, D. P., Thompson, J. C., Bloch-Devaux, B., Colas, P., Klopfenstein, C., Lançon, E., Locci, E., Loucatos, S., Mirabito, L., Monnier, E., Perez, P., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Ashman, J. G., Booth, C. N., Combley, F., Dinsdale, M., Martin, J., Parker, D., Thompson, L. F., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Neugebauer, E., Schäfer, U., Seywerd, H., Gobbo, B., Liello, F., Milotti, E., Rolandi, L., Bellantoni, L., Boudreau, J. F., Cinabro, D., Conway, J. S., Cowen, D. F., Feng, Z., Harton, J. L., Hilgart, J., Jared, R. C., Johnson, R. P., Leclaire, B. W., Pan, Y. B., Parker, T., Pater, J. R., Saadi, Y., Sharma, V., Wear, J. A., Weber, F. V., Sau, Lan, Xue, S. T., Zobernig, G., Decamp, D, Deschizeaux, B, Goy, C, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Mato, P, 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, Brown, D, Burnett, Th, Drevermann, H, Dydak, F, Forty, Rw, 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, Martinez, M, May, J, Menary, S, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdennis, 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, 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, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, 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, 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, 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, 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, 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, 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, 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, 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, Photon, Electron–positron annihilation, High Energy Physics::Phenomenology, Parameter space, Nuclear physics, Neutralino, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton, Minimal Supersymmetric Standard Model
Abstract

Limits on Z decay branching ratios into neutralinos are reported. They were obtained from searches for monojets, acoplanar jets, acoplanar lepton pairs, single photons and acoplanar photon pairs as signaturs for the reactions e+e- → χχ′ and e+e- → χχ′, where χ is the lightest neutralino and χ′ any heavier one. The data sample used for these searches corresponds to about 23 000 events of Z decay into multihadrons, collected at LEP by the ALEPH detector for centre of mass energies at and near the Z peak. The results obtained are used to restrict the parameter space of the minimal supersymmetric standard model.

Published
1990

8. A Search For New Quarks and Leptons From Z0 Decay At Lep

Author

Decamp, D., Deschizeaux, B., Lees, J. -P., Minard, M. -N., Crespo, J. M., Delfino, M., Fernandez, E., Martinez, M., Miquel, R., Mir, Ll. M., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., de Palma, 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, W. B., Bird, F., Blucher, E., Burnett, T. H., Charity, T., Drevermann, H., Garrido, Ll., Grab, C., Hagelberg, R., Haywood, S., Jost, B., Kasemann, M., Kellner, G., Knobloch, J., Lacourt, A., Lehraus, I., Lohse, T., Lüke, D., Marchioro, A., Mato, P., May, J., Minten, A., Miotto, A., Palazzi, P., Pepe-Altarelli, M., Ranjard, F., Roth, A., Rothberg, J., Rotscheidt, H., von Rüden, W., St. Denis, R., Schlatter, D., Takashima, M., Talby, M., Taureg, H., Tejessy, W., Wachsmuth, H., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Falvard, A., Gay, P., Henrard, P., Jousset, J., Michel, B., Montret, J. -C., Pallin, D., Perret, P., Proriol, J., Prulhière, F., Hansen, J. D., Hansen, J. R., Hansen, P. H., Møllerud, R., Petersen, G., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., Bourotte, J., Braems, F., Brient, J. C., Ciocci, M. A., Fouque, G., Guirlet, R., Rougé, A., Rumpf, M., Tanaka, R., Videau, H., Videau, I., Candlin, D. J., Conti, A., Parrini, G., Corden, M., Georgiopoulos, C., Goldman, J. H., 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., de Ninno, G., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Nicoletti, G., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., Ten Have, I., Hearns, J. L., Hughes, I. S., 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., Kluge, E. E., Maumary, Y., Panter, M., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Belk, A. T., Beuselinck, R., Binnie, D. M., Cameron, W., Cattaneo, M., Dornan, P. J., Dugeay, S., Forty, R. W., Greene, A. M., Hassard, J. F., Patton, S. 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., Rowlingson, B. S., Sloan, T., Snow, S. W., Barczewski, T., Bauerdick, L. A. T., Kleinknecht, K., Renk, B., Roehn, S., Sander, H. -G., Schmelling, M., Steeg, F., Albanese, J. -P., Aubert, J. -J., 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., Fernandez-Bosman, M., Hauff, D., Jahn, A., Lange, E., Lütjens, G., Lutz, G., Männer, W., Moser, H. -G., Pan, Y., Richter, R., Schwarz, A. S., Settles, R., Stiegler, U., Stierlin, U., Thomas, J., Waltermann, G., Bertin, V., de Bouard, G., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Journé, V., Kim, D. W., Lefrançois, J., Lutz, A. -M., Veillet, J. -J., Zomer, F., Amendolia, S. R., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, U., Bradaschia, C., 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., Palla, F., Sanguinetti, G., Scapellato, S., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Carter, J. M., Green, M. G., March, P. V., Medcalf, T., Saich, M. R., Strong, J. A., Thomas, R. M., Wildish, T., Botterill, D. R., Clifft, R. W., Edgecock, T. R., Edwards, M., Fisher, S. M., Harvey, J., Jones, T. J., Norton, P. R., Salmon, D. P., Thompson, J. C., Aubourg, E., Bloch-Devaux, B., Colas, P., Klopfenstein, C., Lançon, E., Locci, E., Loucatos, S., Mirabito, L., Monnier, E., Perez, P., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Ashman, J. G., Booth, C. N., Combley, F., Dinsdale, M., Martin, J., Parker, D., Thompson, L. F., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Neugebauer, E., Schäfer, U., Seywerd, H., Gobbo, B., Liello, F., Milotti, E., Ragusa, F., Rolandi, L., Bellantoni, L., Boudreau, J. F., Cinabro, D., Conway, J. S., Cowen, D. F., Feng, Z., Harton, J. L., Hilgart, J., Jared, R. C., Johnson, R. P., Leclaire, B. W., Pan, Y. B., Parker, T., Pater, J. R., Saadi, Y., Sharma, V., Wear, J. A., Weber, F. V., Sau, Lan, Xue, S. T., Zobernig, G., 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
Quark, Physics, Nuclear and High Energy Physics, Aleph, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, 01 natural sciences, Lower limit, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Charged current, Mixing (physics), Lepton
Abstract

A search for Z0 decays into pairs of possible new heavy quarks (t and b′), new heavy charged leptons (L±), stable heavy neutral leptons (νL) and unstable heavy neutral leptons (L0) is performed on data collected by the ALEPH detector corresponding to 11 550 events of Z0→hadrons. The limits on the masses of the heavy quarks are Mt > 45.8 GeV and Mb′ > 46.0 GeV, allowing for both charged-current and flavor-changing neutral-current decays of the b′. If an L± decays into a stable νL, then for MνL MνL. Finally, while the mass of the stable νL is excluded up to 42.7 GeV, the mass of the unstable L0 is excluded up to 45.7 GeV with the mixing parameters |UlL0|2 down to 10−13 at this mass. For 25.0 GeV < ML0 < 42.7 GeV, all values of |UlL0|2 are excluded. All limits are given at 95% CL.

Published
1990

9. Properties of hadronic events in e+e- annihilation at sqrt(s)=91 GeV

Author

Decamp, D., Deschizeaux, B., Lees, J. -P., Minard, M. -N., Crespo, J. M., Delfino, M., Fernandez, E., Martinez, M., Miquel, R., Mir, M. L., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., de Palma, 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, Ll., Grab, C., Hagelberg, R., Haywood, S., Jost, B., Kasemann, M., Kellner, G., Knobloch, J., Lacourt, A., Lehraus, I., Lohse, T., Lüke, D., Marchioro, A., Mato, P., May, J., Mertens, V., Minten, A., Miotto, A., Palazzi, P., Pepe-Altarelli, M., Ranjard, F., Richstein, J., Roth, A., Rothberg, J., Rotscheidt, H., von Rüden, W., St. Denis, R., Schlatter, D., Takashima, M., Talby, M., Taureg, H., Tejessy, W., Wachsmuth, H., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Falvard, A., Gay, P., Henrard, P., Jousset, J., Michel, B., Montret, J. -C., Pallin, D., Perret, P., Prat, J., Proriol, J., Prulhière, F., Bertelsen, H., Hansen, F., Hansen, J. D., Hansen, J. R., Hansen, P. H., Lindahl, A., Madsen, B., Møllerud, R., Nilsson, B. S., Petersen, G., Simopoulou, E., Vayaki, A., Badier, J., Bernard, D., Blondel, A., Bonneaud, G., Bourotte, J., Braems, F., Brient, J. C., Ciocci, M. A., Guirlet, R., Miné, P., Rougé, A., Videau, H., Videau, I., Zwierski, D., Candlin, D. J., Conti, A., Parrini, G., Corden, M., Georgiopoulos, C., Goldman, J. H., 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., de Ninno, G., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Nicoletti, G., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Flavell, A. J., Halley, A. W., Ten Have, I., Hearns, J. L., Hughes, I. S., Lynch, J. G., Martin, D. J., O'Neill, R., Raine, C., Scarr, J. M., Smith, K., Thompson, A. S., Brandl, B., Braun, O., Geiges, R., Geweniger, C., Hanke, P., Hepp, V., Kluge, E. E., Maumary, Y., Panter, M., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Barber, G. J., Belk, A. T., Beuselinck, R., Binnie, D. M., Cameron, W., Cattaneo, M., Dornan, P. J., Dugeay, S., Forty, R. W., Gentry, D. N., Hassard, J. F., Miller, D. G., Price, D. R., Sedgbeer, J. K., Taylor, G., Tomalin, I. R., Girtler, P., Kuhn, D., Rudolph, G., Brodbeck, T. J., Bowdery, C. K., Finch, A. J., Foster, F., Hughes, G., Keemer, N. R., Nuttall, M., Rowlingson, B. S., Sloan, T., Snow, S. W., Barczewski, T., Bauerdick, L. A. T., Kleinknecht, K., Pollmann, D., Renk, B., Roehn, S., Sander, H. -G., Schmelling, M., Steeg, F., Albanese, J. -P., Aubert, J. -J., 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., Fernandez-Bosman, M., Hauff, D., Jahn, A., Lange, E., Lütjens, G., Lutz, G., Männer, W., Moser, H. -G., Pan, Y., Richter, R., Schwarz, A. S., Settles, R., Stiegler, U., Stierlin, U., Stimpfl, G., Thomas, J., Waltermann, G., de Bouard, G., Boucrot, J., Callot, O., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Journé, V., Kim, D. W., Lefrançois, J., Lloyd-Owen, D., Lutz, A. -M., Marotte, P., Veillet, J. -J., Amendolia, S. R., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, U., Bradaschia, C., 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., Palla, F., Sanguinetti, G., Scapellato, S., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Carter, J. M., Green, B. J., Green, M. G., Mckemey, A. K., March, P. V., Medcalf, T., Saich, M. R., Strong, J. A., Thomas, R. M., Wildish, T., Botterill, D. R., Clifft, R. W., Edgecock, T. R., Edwards, M., Fisher, S. M., Harvey, J., Hill, D. L., Jones, T. J., Morrissey, M., Norton, P. R., Salmon, D. P., Thompson, J. C., Bloch-Devaux, B., Colas, P., Klopfenstein, C., Lançon, E., Locci, E., Loucatos, S., Mirabito, L., Monnier, E., Perez, P., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Ashman, J. G., Booth, C. N., Combley, F., Dinsdale, M., Martin, J., Parker, D., Thompson, L. F., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Neugebauer, E., Schäfer, U., Seywerd, H., Stupperich, K., Gobbo, B., Liello, F., Milotti, E., Ragusa, F., Roland, L., Bellantoni, L., Boudreau, J. F., Cinabro, D., Conway, J. S., Cowen, D. F., Feng, Z., Harton, J. L., Hilgart, J., Jared, R. C., Johnson, R. P., Leclaire, B. W., Pan, Y. B., Parker, T., Pater, J. R., Saadi, Y., Sharma, V., Wear, J. A., Weber, F. V., Sau Lan Wu, Xue, S. T., and Zobernig, G.

Published
1990

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