151. Search for particles with unexpected mass and charge in Z decays
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Buskulic, Damir, Schwindling, J, Décamp, D, Goy, C, Lees, J P, Minard, M N, Mours, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, J M, Delfino, M C, Fernández, E, Gaitan, V, Garrido, L, Mattison, T S, Pacheco, A, Padilla, C, Pascual, A, 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, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Bauerdick, L A T, Blucher, E, Bonvicini, G, Boudreau, J, Casper, David William, Drevermann, H, Forty, Roger W, Ganis, G, Gay, C, Hagelberg, R, Harvey, J, Haywood, S, Hilgart, J M, Jacobsen, R, Jost, B, Knobloch, J, Lançon, E, Lehraus, Ivan, Lohse, T, Lusiani, A, Martínez, M, Mato, P, Meinhard, H, Minten, Adolf G, Miquel, R, Moser, H G, Palazzi, P, Perlas, J A, Pusztaszeri, J F, Ranjard, F, Redlinger, G, Rolandi, Luigi, Rothberg, J E, Ruan, T, Saich, M, Schlatter, W D, Schmelling, M, Sefkow, F, Tejessy, W, Wachsmuth, H W, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Badaud, F, Bardadin-Otwinowska, Maria, Bencheikh, A M, El-Fellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Pietrzyk, B, Proriol, J, Prulhière, F, Stimpfl, G, Fearnley, Tom, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Nilsson, B S, Efthymiopoulos, I, Kyriakis, A, Simopoulou, Errietta, Vayaki, Anna, Zachariadou, K, Badier, J, Blondel, A, Bonneaud, G R, Brient, J C, Fouque, G, Orteu, S, Rougé, A, Rumpf, M, Tanaka, R, Verderi, M, Videau, H L, Candlin, D J, Parsons, M I, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Wasserbaech, S R, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, 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, Colrain, P, ten Have, I, Lynch, J G, Maitland, W J, Morton, W T, Raine, C, Scarr, J M, Smith, K, Smith, M G, Thompson, A S, Turnbull, R M, Brandl, B, Braun, O, 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, Colling, D J, Dornan, Peter J, Dugeay, S, Greene, A M, Hassard, J F, Lieske, N M, Nash, J, Patton, S J, Payne, D G, Phillips, M J, Sedgbeer, J K, Tomalin, I R, Wright, A G, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Jackson, D, Keemer, N R, Nuttall, M, Patel, A D, Sloan, Terence, Snow, S W, Whelan, E P, Kleinknecht, K, Raab, J, Renk, B, Sander, H G, Schmidt, H, Steeg, F, Walther, S M, Wanke, R, Wolf, B, Aubert, Jean-Jacques, Benchouk, C, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Qian, Z, Roos, L, Rousseau, D, Schwemling, P, Talby, M, Adlung, S, Assmann, R W, Bauer, C, Blum, Walter, Brown, D, Cattaneo, Paolo Walter, Dehning, Bernd, Dietl, H, Dydak, Friedrich, Fernández-Bosman, M, Frank, M, Halley, A W, Lauber, J, Lütjens, G, Lutz, Gerhard, Männer, W, Richter, R H, Rotscheidt, Herbert, Schröder, J, Schwarz, A S, Settles, Ronald, Seywerd, H C J, Stierlin, U, Stiegler, U, Saint-Denis, R, Takashima, M, Thomas, J, Wolf, G, Boucrot, J, Callot, O, Cordier, A, Davier, M, Duflot, L, Grivaz, J F, Heusse, P, Jaffe, D E, Janot, P, Kim, D W, Le Diberder, F R, Lefrançois, J, Lutz, A M, Schune, M H, Veillet, J J, Videau, I, Zhang, Z, Abbaneo, D, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bozzi, C, 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, Mannelli, E B, Marrocchesi, P S, Messineo, A, Palla, Fabrizio, Rizzo, G, Sanguinetti, G, Spagnolo, P, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P G, Walsh, J, Betteridge, A P, Carter, J M, Green, M G, March, P V, Mir, L M, Medcalf, T, Quazi, I S, Strong, J A, West, L R, 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, Duarte, H, Kozanecki, Witold, Lemaire, M C, Locci, E, Monnier, E, Pérez, P, Perrier, F, Rander, J, Renardy, J F, Rosowsky, A, Roussarie, A, Schuller, J P, Si Mohand, D, Vallage, B, Johnson, R P, Litke, A M, Taylor, G, Wear, J, Ashman, John Gavin, Babbage, W, Booth, C N, Buttar, C M, Carney, R E, Cartwright, S L, Combley, F, Hatfield, F, Reeves, P, Thompson, L F, Barbiero, E, Böhrer, A, Brandt, S, Cowan, G D, Grupen, Claus, Lutters, G, Rivera, F, Schäfer, U, Della Marina, R, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Chen, W, Cinabro, D, Conway, J S, Cowen, D F, Feng, Z, Ferguson, D P S, Gao, Y S, Grahl, J, Harton, J L, Jared, R C, LeClaire, B W, Lishka, C, Miotto, A, Pan Yi Bin, Pater, J R, Saadi, Y, Sharma, V, Schmitt, M, Shi, Z H, Walsh, A M, Weber, F V, Whitney, M H, Wu Sau Lan, Wu, X, 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, 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), Buskulic, D, Decamp, D, Goy, C, Lees, Jp, Minard, Mn, Mours, B, Pietrzyk, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, Jm, Delfino, M, Fernandez, E, Fernandezbosman, M, Gaitan, V, Garrido, L, Mattison, T, Pacheco, A, Padilla, C, 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, Chai, Y, Hu, H, Huang, D, Huang, X, Lin, J, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, L, Zhao, W, Bauerdick, Lat, Blucher, E, Bonvicini, G, Boudreau, J, Casper, D, Drevermann, H, Forty, Rw, Ganis, G, Gay, C, Hagelberg, R, Harvey, J, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Knobloch, J, Lehraus, I, Lohse, T, Lusiani, Alberto, Martinez, M, Mato, P, Meinhard, H, Minten, A, Miotto, A, Miquel, R, Moser, Hg, Palazzi, P, Perlas, Ja, Pusztaszeri, Jf, Ranjard, F, Redlinger, G, Rolandi, Luigi, 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, Elfellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Prulhiere, F, Saadi, F, 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, Orteu, S, Rouge, A, Rumpf, M, Tanaka, R, Verderi, M, 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, Bossi, F, 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, Colrain, P, Tenhave, I, Lynch, Jg, Maitland, W, Morton, Wt, Raine, C, Reeves, P, Scarr, Jm, Smith, K, Smith, Mg, Thompson, A, Turnbull, Rm, Brandl, B, Braun, O, 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, Nash, J, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Girtler, P, 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, Kleinknecht, K, Raab, J, Renk, B, Sander, Hg, Schmidt, H, Steeg, F, Walther, Sm, Wanke, R, Wolf, B, Aubert, Jj, Bencheikh, Am, Benchouk, C, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Nicod, D, Papalexiou, S, Payre, P, Roos, L, Rousseau, D, Schwemling, P, Talby, M, Adlung, S, Assmann, R, Bauer, C, Blum, W, Brown, D, Cattaneo, P, Dehning, B, Dietl, H, Dydak, F, Frank, M, Halley, Aw, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Richter, R, Rotscheidt, H, Schroder, J, Schwarz, A, Settles, R, Seywerd, H, Stierlin, U, Stiegler, U, Stdenis, R, Wolf, G, Boucrot, J, Callot, O, Cordier, A, Davier, M, Duflot, L, Grivaz, Jf, Heusse, P, Jaffe, De, Janot, P, Kim, Dw, Lediberder, F, Lefrancois, J, Lutz, Am, Schune, Mh, Veillet, Jj, Videau, I, Zhang, Z, Abbaneo, D, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, Ma, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Gregorio, A, Ligabue, Franco, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Spagnolo, P, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, Pg, Walsh, J, Betteridge, Ap, Carter, Jm, Green, Mg, March, Pv, Mir, Lm, 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, Duarte, H, Kozanecki, W, Lancon, E, Lemaire, Mc, Locci, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Rosowsky, A, 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, Thompson, Lf, Barberio, E, Bohrer, A, Brandt, S, Cowan, G, Grupen, C, Lutters, G, Rivera, F, Schafer, U, Smolik, L, Dellamarina, R, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Chen, W, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Ferguson, Dp, Gao, Y, Grahl, J, Harton, Jl, Jared, Rc, Leclaire, Bw, Lishka, C, Pan, Yb, Pater, Jr, Saadi, Y, Sharma, V, Schmitt, M, Shi, Zh, Walsh, Am, Weber, Fv, Wu, Sl, Wu, X, Zheng, M, Zobernig, G., D., Buskilic, D., Decamp, C., Goy, J. P., Lee, M. N., Minard, B., Mour, B., Pietrzyk, R., Alemany, F., Ariztizabal, P., Coma, J. M., Crespo, M., Delfino, E., Fernandez, M., Fernandez Bosman, V., Gaitan, Garrido, L. l., T., Mattison, A., Pacheco, C., Padilla, A., Pascual, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, N., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Chai, H., Hu, D., Huang, X., Huang, J., Lin, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, L., Zhang, W., Zhao, L. A. T., Bauerdick, E., Blucher, G., Bonvicini, J., Boudreau, D., Casper, H., Drevermann, R. W., Forty, G., Gani, C., Gay, R., Hagelberg, J., Harvey, S., Haywood, J., Hilgart, R., Jacobsen, B., Jost, J., Knobloch, I., Lehrau, T., Lohse, A., Lusiani, M., Martinez, P., Mato, H., Meinhard, A., Mitten, A., Miotto, R., Miquel, H. G., Moser, P., Palazzi, J. A., Perla, J. F., Pusztaszeri, F., Ranjard, G., Redlinger, L., Rolandi, 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, R., El Fellou, A., Falvard, P., Gay, C., Guicheney, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, F., Podlyski, J., Proriol, F., Prulhière, F., Saadi, 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, S., Orteu, A., Rougé, M., Rumpf, R., Tanaka, M., Verderi, 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, F., Bossi, 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., Colrain, I., ten Have, J. G., Lynch, W., Maitland, W. T., Morton, C., Raine, P., Reeve, J. M., Scarr, K., Smith, M. G., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, 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, J., Nash, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, I. R., Tomalin, A. G., Wright, P., Girtler, 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, K., Kleinknecht, J., Raab, B., Renk, H. G., Sander, H., Schmidt, F., Steeg, S. M., Walther, R., Wanke, B., Wolf, J. J., Aubert, A. M., Bencheikh, C., Benchouk, A., Bonissent, J., Carr, P., Coyle, J., Drinkard, F., Etienne, D., Nicod, S., Papalexiou, P., Payre, L., Roo, D., Rousseau, P., Schwemling, M., Talby, S., Adlung, R., Assmann, C., Bauer, W., Blum, D., Brown, P., Catteneo, B., Dehning, H., Dietl, F., Dydak, M., Frank, A. W., Halley, J., Lauber, G., Lütjen, G., Lutz, W., Männer, R., Richter, H., Rotscheidt, J., Schröder, A. S., Schwarz, R., Settle, H., Seywerd, U., Stierlin, U., Stiegler, Denis, R. S. t., G., Wolf, J., Boucrot, O., Callot, A., Cordier, M., Davier, L., Duflot, J. F., Grivaz, Heusse, P. h., D. E., Jaffe, P., Janot, D. W., Kim, F., Le Diberder, J., Lefrançoi, A. M., Lutz, M. H., Schune, J. J., Veillet, I., Videau, Z., Zhang, D., Abbaneo, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bozzi, G., Calderini, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, A., Gregorio, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, F., Palla, G., Rizzo, G., Sanguinetti, P., Spagnolo, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, A. P., Betteridge, J. M., Carter, M. G., Green, P. V., March, Mir, L. l. M., 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, H., Duarte, W., Kozanecki, E., Lançon, M. C., Lemaire, E., Locci, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Rosowsky, A., Roussarie, J. P., Schuller, J., Schwindling, D., Si 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, L. F., Thompson, E., Barberio, A., Böhrer, S., Brandt, G., Cowan, C., Grupen, G., Lutter, F., Rivera, U., Schäfer, L., Smolik, R., Della Marina, G., Giannini, B., Gobbo, F., Ragusa, L., Bellantoni, W., Chen, 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, A. M., Walsh, F. V., Weber, Sau Lan, Wu, X., Wu, M., Zheng, G., Zobernig, B., D'Ettorre Piazzoli, Bosisio, Luciano, Gregorio, Anna, Giannini, Gianrossano, Lees, J, Minard, M, Crespo, J, Bauerdick, L, Forty, R, Lusiani, A, Moser, H, Perlas, J, Pusztaszeri, J, Rolandi, L, Montret, J, Hansen, J, Hansen, P, Brient, J, Candlin, D, Parsons, M, Murtas, G, Lynch, J, Morton, W, Scarr, J, Smith, M, Turnbull, R, Kluge, E, Belk, A, Binnie, D, Colling, D, Dornan, P, Greene, A, Hassard, J, Lieske, N, 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, Bencheikh, A, Halley, A, Grivaz, J, Jaffe, D, Kim, D, Lutz, A, Schune, M, Veillet, J, Ciocci, M, Giorgi, M, Ligabue, F, Mannelli, E, Verdini, P, Betteridge, A, Carter, J, Green, M, March, P, Mir, L, 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, Pan, Y, Pater, J, Shi, Z, Walsh, A, Weber, F, Wu, S, and Zobernig, G
- Subjects
Nuclear and High Energy Physics ,Particle physics ,Aleph ,Electron–positron annihilation ,Hadron ,Tracking (particle physics) ,01 natural sciences ,law.invention ,ALEPH Experiment ,Nuclear physics ,law ,0103 physical sciences ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Nuclear Experiment ,010306 general physics ,Collider ,Physics ,Luminosity (scattering theory) ,010308 nuclear & particles physics ,lcsh:QC1-999 ,Charged particle ,Pair production ,High Energy Physics::Experiment ,lcsh:Physics ,Particle Physics - Experiment - Abstract
During 1989 and 1990 over 180 000 hadronic and leptonic events, corresponding to 8 pb-1 of luminosity, were collected by the ALEPH detector in a scan of the Z peak at the e+e- collider LEP. This letter reports the results of a search in these data for particles with unexpected mass and charge by measurement of the ionization energy loss of charged tracks in the ALEPH TPC central tracking detector. The mass limits for the pair production of fractionally charged particles and of heavy, long lived charged particles are extended to 43 GeV/c2 at 90% confidence level. If single production of a heavy particle is considered, the mass limit is extended to more than 70 GeV/c2. 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; St.Denis, Richard/C-8997-2012; Forti, Francesco/H-3035-2011; Ferrante, Isidoro/F-1017-2012
- Published
- 1993