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Measurement of the Tau Lepton Polarisation at LEP2

A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value P_tau = -0.164 +/- 0.125 is consistent...

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Detalles Bibliográficos
Autores principales: Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany-Fernandez, R., Allmendinger, T., Allport, P.P., Amaldi, U., Amapane, N., Amato, Sandra F., Anashkin, E., Andreazza, A., Andringa, S., Anjos, N., Antilogus, Pierre, Apel, W-D., Arnoud, Y., Ask, S., Asman, B., Augustin, Jean-Eudes, Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barbier, R., Bardin, D., Barker, G.J., Baroncelli, Antonio, Battaglia, M., Baubillier, M., Becks, K-H., Begalli, M., Behrmann, A., Ben-Haim, Eli, Benekos, N., Benvenuti, A., Berat, C., Berggren, Mikael, Bertrand, D., Besancon, M., Besson, N., Bloch, D., Blom, M., Bluj, Michal, Bonesini, Maurizio, Boonekamp, M., Booth, P.S.L., Borisov, G., Botner, Olga, Bouquet, B., Bowcock, T.J.V., Boyko, I., Bracko, Marko, Brenner, R., Brodet, E., Bruckman, P., Brunet, J.M., Buschbeck, B., Buschmann, P., Calvi, M., Camporesi, Tiziano, Canale, V., Carena, F., Castro, Nuno Filipe, Cavallo, F., Chapkin, M., Charpentier, Ph., Checchia, Paolo, Chierici, R., Chliapnikov, P., Chudoba, J., Chung, Suh-Urk, Cieslik, K., Collins, P., Contri, Roberto, Cosme, G., Cossutti, Fabio, Costa, M.J., Crennell, D., Cuevas, J., D'Hondt, J., da Silva, T., Da Silva, W., Dedovich, D., Della Ricca, Giuseppe, De Angelis, Alessandro, De Boer, W., De Clercq, C., De Lotto, Barbara, De Maria, N., De Min, A., de Paula, L., Di Ciaccio, L., Di Simone, A., Doroba, K., Eigen, G., Ekelof, Tord, Ellert, Mattias, Elsing, M., Espirito Santo, Maria Catarina, Fanourakis, George K., Feindt, Michael, Fernandez, J., Ferrer, A., Ferro, F., Flagmeyer, U., Foeth, H., Fokitis, E., Fulda-Quenzer, F., Fuster, J., Gandelman, Miriam, Garcia, C., Gavillet, Philippe, Gazis, Evangelos, Gomez-Ceballos, G., Goncalves, P., Graziani, E., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hallgren, A., Hamacher, Klaus, Hamilton, K., Haug, S., Hauler, F., Hedberg, Vincent, Hennecke, M., Herr, H., Hoffman, J., Holmgren, S-O., Holt, P.J., Houlden, M.A., Jackson, John Neil, Jarlskog, Goran, Jarry, P., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Jungermann, L., Kapusta, Frederic, Katsanevas, S., Katsoufis, E., Kernel, Gabrijel, Kerzel, U., King, B.T., Kjaer, N.J., Kluit, Peter, Kokkinias, P., Kourkoumelis, C., Kouznetsov, O., Krumstein, Z., Kucharczyk, M., Lamsa, J., Leder, G., Ledroit, F., Leinonen, L., Leitner, R., Lemonne, Jacques, Lepeltier, V., Lesiak, T., Liebig, W., Liko, D., Lipniacka, A., Lopes, J.H., Lopez, J.M., Loukas, D., Lutz, Pierre, Lyons, Louis, MacNaughton, J., Malek, A., Maltezos, S., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J-C., Mariotti, C., Markou, Athanasios, Martinez-Rivero, C., Masik, J., Mastroyiannopoulos, N., Matorras, Francisco, Matteuzzi, C., Mazzucato, F., Mazzucato, M., Nulty, R.Mc, Meroni, C., Migliore, E., Mitaroff, Winfried A., Mjoernmark, U., Moa, T., Moch, M., Monge, R., Montenegro, J., Moraes, D., Moreno, S., Morettini, P., Mueller, U., Muenich, K., Mulders, M., Mundim Filho, Luiz Martins, Murray, W., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Navarria, F., Nawrocki, K., Nicolaidou, R., Oblakowska-Mucha, A., Obraztsov, V., Olshevski, A., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Palacios, J.P., Palka, Henryk, Papadopoulou, Th.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Peralta, L., Perepelitsa, V., Perrotta, Andrea, Petrolini, Alessandro, Piedra, Jonatan, Pieri, L., Pierre, Francois, Pimenta, M., Piotto, E., Poireau, V., Pol, M.E., Polok, G., Pozdniakov, V., Pukhaeva, N., Pullia, A., Rames, J., Read, A., Rebecchi, P., Rehn, J., Reid, D., Reinhardt, R., Renton, Peter, Richard, F., Ridky, Jan, Rivero, M., Rodriguez, D., Romero, A., Ronchese, P., Roudeau, P., Rovelli, T., Ruhlmann, Vanina, Ryabtchikov, D., Sadovsky, A., Salmi, L., Salt, J., Sander, C., Savoy-Navarro, A., Schwickerath, U., Segar, A., Sekulin, R., Siebel, Martin, Sisakian, A., Smadja, G., Smirnova, O., Sokolov, A., Sopczak, A., Sosnowski, R., Spassov, T., Stanitzki, M., Stocchi, A., Strauss, J., Stugu, B., Szczekowski, M., Szeptycka, M., Szumlak, T., Tabarelli de Fatis, T., Taffard, A.C., Tegenfeldt, F., Timmermans, Jan, Tkatchev, L., Tobin, M., Todorovova, S., Tome, B., Tonazzo, A., Tortosa, P., Travnicek, Petr, Treille, D., Tristram, G., Trochimczuk, M., Troncon, Clara, Turluer, M-L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Uvarov, V., Valenti, Giovanni, Van Dam, P., Van Eldik, J., van Remortel, N., Van Vulpen, I., Vegni, G., Veloso, F., Venus, W., Verdier, Patrice, Verzi, V., Vilanova, D., Vitale, Lorenzo, Vrba, V., Wahlen, H., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J., Wilkinson, G., Winter, M., Witek, M., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, Danilo, Zhuravlov, V., Zimine, N.I., Zintchenko, Alexandre
Lenguaje:eng
Publicado: 2007
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2007.10.022
http://cds.cern.ch/record/1061356
Descripción
Sumario:A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value P_tau = -0.164 +/- 0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV.