Measurement of the W-pair cross-section and of the W mass in e(+)e(-) interactions at 172 GeV

Autor: Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G. D., Alemany, R., Allport, P. P., Almehed, S., Amaldi, U., Amato, S., Andersson, P., Andreazza, A., Antilogus, P., Apel, W. -D, Arnoud, Y., Åsman, B., Augustin, J-E, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D. Y., Barker, G., Baroncelli, A., Barring, O., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. -H, Begalli, M., Beilliere, P., Belokopytov, Y., Belous, K., Benvenuti, A. C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bianchi, F., Bigi, M., Bilenky, M. S., Billoir, P., Bizouard, M. -A, Bloch, D., Blume, M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P. S. L., Borgland, A. W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Bozovic, I., Bozzo, M., Branchini, P., Brand, K. D., Brenke, T., Brenner, R. A., Brown, R., Bruckman, P., Brunet, J. -M, Bugge, L., Buran, T., Burgsmueller, T., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camacho Rozas, A. J., Camporesi, T., Canale, V., Canepa, M., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerruti, Ch, Chabaud, V., Chalanda, N., Charpentier, Ph, Chaussard, L., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cindro, V., Collins, P., Colomer, M., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J. -H, Crawley, H. B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Dalmagne, B., Damgaard, G., Dauncey, P. D., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., Angelis, A., Boer, W., Brabandere, S., Clercq, C., La Vaissiere, C., Lotto, B., Min, A., Paula, L., Dijkstra, H., Di Ciaccio, L., Di Diodato, A., Djannati, A., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Drees, K. -A, Dris, M., Duperrin, A., Durand, J. -D, Edsall, D., Ehret, R., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J. -P, Erzen, B., Espirito Santo, M., Falk, E., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrari, P., Ferrer, A., Fichet, S., Firestone, A., Fischer, P. -A, Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Franek, B., Frodesen, A. G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, Ph, Gazis, E. N., Gele, D., Gerber, J. -P, Ghodbane, N., Glege, F., Gokieli, R., Golob, B., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gorski, M., Gouz, Yu, Gracco, V., Grahl, J., Graziani, E., Green, C., Grefrath, A., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hajduk, Z., Hallgren, A., Hamacher, K., Harris, F. J., Hedberg, V., Heising, S., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Heuser, J. -M, Higon, E., Holmgren, S. -O, Holt, P. J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J. N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, Ch, Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Jonsson, L., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klapp, O., Klein, H., Kluit, P., Knoblauch, D., Kokkinias, P., Koratzinos, M., Korcyl, K., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Kronkvist, I., Krumstein, Z., Kubinec, P., Kucewicz, W., Kurvinen, K., Lacasta, C., Lamsa, J. W., Lanceri, L., Lane, D. W., Langefeld, P., Lapin, V., Laugier, J. -P, Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Legan, C. K., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J. G., Lopes, J. H., Lopez, J. M., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J. R., Maio, A., Malek, A., Malmgren, T. G. M., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J. -C, Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti I Garcia, S., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Medbo, J., Meroni, C., Meyer, W. T., Miagkov, A., Michelotto, M., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Moreau, X., Morettini, P., Muenich, K., Mulders, M., Mundim, L. M., Murray, W. J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Nieuwenhuizen, M., Nikolaenko, V., Nikolenko, M., Niss, P., Nomerotski, A., Normand, A., Nygren, A., Oberschulte-Beckmann, W., Obraztsov, V., Olshevski, A. G., Onofre, A., Orava, R., Orazi, G., Ortuno, S., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palka, H., Papadopoulou, T. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Pegoraro, M., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Reinhardt, R., Renton, P. B., Resvanis, L. K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E. I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwickerath, U., Schyns, M. A. E., Scuri, F., Seager, P., Sedykh, Y., Segar, A. M., Sekulin, R., Shellard, R. C., Sheridan, A., Silvestre, R., Simonetto, F., Sisakian, A. N., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Solovianov, O., Sopczak, A., Sosnowski, R., Souza-Santos, D., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stampfer, D., Stanescu, C., Stanic, S., Stapnes, S., Stavitski, I., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., Bernardo Tomé, Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M. -L, Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Apeldoorn, G. W., Dam, P., Doninck, W. K., Eldik, J., Lysebetten, A., Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Verzi, V., Vilanova, D., Vincent, P., Vishnevsky, N., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wetherell, A. M., Wicke, D., Wickens, J. H., Wilkinson, G. R., Williams, W. S. C., Winter, M., Witek, M., Wlodek, T., Wolf, G., Yi, J., Yushchenko, O., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zucchelli, G. C., Zumerle, G.
Přispěvatelé: Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-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), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-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), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G, Alemany, R, Allport, P, Almehed, S, Amaldi, U, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W, Arnoud, Y, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Barring, O, Bates, M, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Beilliere, P, Belokopytov, Y, Belous, K, Benvenuti, A, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, M, Billoir, P, Bizouard, M, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P, Borgland, A, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Bozovic, I, Bozzo, M, Branchini, P, Brand, K, Brenke, T, Brenner, R, Brown, R, Bruckman, P, Brunet, J, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho Rozas, A, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, C, Castillo Gimenez, M, Cattai, A, Cavallo, F, Cerruti, C, Chabaud, V, Chalanda, N, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G, Chen, M, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J, Crawley, H, Crennell, D, Crosetti, G, Cuevas Maestro, J, Czellar, S, Dalmagne, B, Damgaard, G, Dauncey, P, Davenport, M, da Silva, W, Deghorain, A, della Ricca, G, Delpierre, P, Demaria, N, de Angelis, A, de Boer, W, de Brabandere, S, de Clercq, C, de la Vaissiere, C, de Lotto, B, de Min, A, de Paula, L, Dijkstra, H, di Ciaccio, L, di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K, Dris, M, Duperrin, A, Durand, J, Edsall, D, Ehret, R, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, J, Erzen, B, Espirito Santo, M, Falk, E, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Gerber, J, Ghodbane, N, Glege, F, Gokieli, R, Golob, B, Goncalves, P, Gonzalez Caballero, I, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gunther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F, Hedberg, V, Heising, S, Henriques, R, Hernandez, J, Herquet, P, Herr, H, Hessing, T, Heuser, J, Higon, E, Holmgren, S, Holt, P, Holthuizen, D, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Jonsson, L, Jonsson, P, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klapp, O, Klein, H, Kluit, P, Knoblauch, D, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kreuter, C, Kronkvist, I, Krumstein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K, Lacasta, C, Lamsa, J, Lanceri, L, Lane, D, Langefeld, P, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Legan, C, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopes, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Malmgren, T, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Marti i Garcia, S, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Medbo, J, Meroni, C, Meyer, W, Miagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Moreau, X, Morettini, P, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Navarria, F, Navas, S, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, A, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Orazi, G, Ortuno, S, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palka, H, Papadopoulou, T, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P, Read, A, Rebecchi, P, Redaelli, N, Regler, M, Reid, D, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Rosenberg, E, Rosinsky, P, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Sekulin, R, Shellard, R, Sheridan, A, Silvestre, R, Simonetto, F, Sisakian, A, Skaali, T, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Solovianov, O, Sopczak, A, Sosnowski, R, Souza-Santos, D, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, S, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L, Todorov, T, Todorova, S, Toet, D, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A, Turluer, M, Tyapkin, I, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, van Apeldoorn, G, van Dam, P, van Doninck, W, van Eldik, J, van Lysebetten, A, van Vulpen, I, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vincent, P, Vishnevsky, N, Vitale, L, Vlasov, E, Vodopyanov, A, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, A, Wicke, D, Wickens, J, Wilkinson, G, Williams, W, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zucchelli, G, Zumerle, G
Jazyk: angličtina
Rok vydání: 1998
Předmět:
Zdroj: Scopus-Elsevier
CIÊNCIAVITAE
European Physical Journal C: Particles and Fields
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 1998, 2, pp.581-595
European Physical Journal C: Particles and Fields, 1998, 2, pp.581-595. ⟨10.1007/s100520050163⟩
BASE-Bielefeld Academic Search Engine
ISSN: 1434-6044
1434-6052
Popis: From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the branching fraction ${\mathrm Br}({\mathrm W} \rightarrow {\mathrm q}\bar{\mathrm q})$ was measured to be $0.660^{+0.036}_{-0.037} (\mathrm{stat.}) \pm 0.009 (\mathrm{syst.})$ and the cross-section for the doubly resonant process $\mathrm{e^+ e^- \rightarrow W^+ W^-}$ to be $11.58^{+1.44}_{-1.35} (\mathrm{stat.}) \pm 0.32 (\mathrm{syst.})$ pb. The mass of the W boson, obtained from direct reconstruction of the invariant mass of the fermion pairs in the decays $\mathrm{ WW \rightarrow \ell\nu q \bar{q}}$ and $\mathrm{ WW \rightarrow q\bar{q}q\bar{q}}$, was determined to be $m_{\mathrm W} = \: 80.22 \: \pm \: 0.41 (\mathrm{stat.}) \: \pm 0.04 (\mathrm{syst.}) \: \pm 0.05 (\mathrm{int.}) \: \pm 0.03 (\mathrm{LEP})\: \mathrm{GeV}/c^2$, where ``int.'' denotes the uncertainty from interconnection effects like colour reconnection and Bose-Einstein interference. Combined with the W mass obtained from the cross-sections measured by DELPHI at threshold, a value of $m_{\mathrm W} = \: 80.33 \: \pm \: 0.30 (\mathrm{stat.}) \: \pm 0.05 ({\mathrm syst.}) \: \pm \: 0.03 (\mathrm{int.}) \: \pm \: 0.03 (\mathrm{LEP}) \: \mathrm{GeV}/c^2$ was found.
Databáze: OpenAIRE
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