Measurement of the W mass in e(+)e(-) collisions at production threshold

Barate, R; Buskulic, D; Decamp, D; Ghez, P; Goy, C; Lees, Jp; Lucotte, A; Minard, Mn; Nief, Jy; Pietrzyk, B; Casado, Mp; Chmeissani, M; Comas, P; Crespo, Jm; Delfino, M; Fernandez, E; Fernandezbosman, M; Garrido, L; Juste, A; Martinez, M; Miquel, R; Mir, Lm; Orteu, S; Padilla, C; Park, Ic; Pascual, A; Perlas, Ja; Riu, I; Sanchez, F; Teubert, F; Colaleo, A; Creanza, D; Depalma, M; Gelao, G; Iaselli, G; Maggi, G; Maggi, M; Marinelli, N; Nuzzo, S; Ranieri, A; Raso, G; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Tricomi, A; Zito, G; Huang, X; Lin, J; Ouyang, Q; Wang, T; Xie, Y; Xu, R; Xue, S; Zhang, J; Zhang, L; Zhao, W; Abbaneo, D; Alemany, R; Bazarko, Ao; Becker, U; Brightthomas, P; Cattaneo, M; Cerutti, F; Drevermann, H; Forty, Rw; Frank, M; Hagelberg, R; Harvey, J; Janot, P; Jost, B; Kneringer, E; Knobloch, J; Lehraus, I; Lutters, G; Mato, P; Minten, A; Moneta, L; Pacheco, A; Pusztaszeri, Jf; Ranjard, F; Rensing, P; Rizzo, G; Rolandi, L; Schlatter, D; Schmitt, M; Schneider, O; Tejessy, W; Tomalin, Ir; Wachsmuth, H; Wagner, A; Ajaltouni, Z; Barres, A; Boyer, C; Falvard, A; Ferdi, C; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Perret, P; Podlyski, F; Proriol, J; Rosnet, P; Rossignol, Jm; Fearnley, T; Hansen, Jb; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Rensch, B; Waananen, A; Daskalakis, G; Kyriakis, A; Markou, C; Simopoulou, E; Vayaki, A; Blondel, A; Brient, Jc; Machefert, F; Rouge, A; Rumpf, M; Valassi, A; Videau, H; Focardi, E; Parrini, G; Zachariadou, K; Corden, M; Georgiopoulos, C; Jaffe, De; Antonelli, A; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Casper, D; Chiarella, V; Felici, G; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, Gp; Passalacqua, L; Pepealtarelli, M; Curtis, L; Dorris, Sj; Halley, Aw; Knowles, Ig; Lynch, Jg; Oshea, V; Raine, C; Scarr, Jm; Smith, K; Teixeiradias, P; Thompson, As; Thomson, E; Thomson, F; Turnbull, Rm; Geweniger, C; Graefe, G; Hanke, P; Hansper, G; Hepp, V; Kluge, Ee; Putzer, A; Schmidt, M; Sommer, J; Tittel, K; Werner, S; Wunsch, M; Beuselinck, R; Binnie, Dm; Cameron, W; Dornan, Pj; Girone, M; Goodsir, S; Martin, Eb; Morawitz, P; Moutoussi, A; Nash, J; Sedgbeer, Jk; Stacey, Am; Williams, Md; Dissertori, G; Ghete, Vm; Girtler, P; Kuhn, D; Rudolph, G; Betteridge, Ap; Bowdery, Ck; Colrain, P; Crawford, G; Finch, Aj; Foster, F; Hughes, G; Jones, Rw; Sloan, T; Whelan, Ep; Williams, Mi; Hoffmann, C; Jakobs, K; Kleinknecht, K; Quast, G; Renk, B; Rohne, E; Sander, Hg; Vangemmeren, P; Zeitnitz, C; Aubert, Jj; Benchouk, C; Bonissent, A; Bujosa, G; Calvet, D; Carr, J; Coyle, P; Diaconu, C; Konstantinidis, N; Leroy, O; Motsch, F; Payre, P; Rousseau, D; Talby, M; Sadouki, A; Thulasidas, M; Tilquin, A; Trabelsi, K; Aleppo, M; Ragusa, F; Berlich, R; Blum, W; Buscher, V; Dietl, H; Dydak, F; Ganis, G; Gotzhein, C; Kroha, H; Lutjens, G; Lutz, G; Manner, W; Moser, Hg; Richter, R; Rosadoschlosser, A; Schael, S; Settles, R; Seywerd, H; Stdenis, R; Stenzel, H; Wiedenmann, W; Wolf, G; Boucrot, J; Callot, O; Chen, S; Cordier, A; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Hocker, A; Jacholkowska, A; Jacquet, M; Kim, Dw; Lediberder, F; Lefrancois, J; Lutz, Am; Nikolic, I; Schune, Mh; Simion, S; Tournefier, E; Veillet, Jj; Videau, I; Zerwas, D; Azzurri, P; Bagliesi, G; Batignani, G; Bettarini, S; Bozzi, C; Calderini, G; Carpinelli, M; Ciocci, Ma; Ciulli, V; Dellorso, R; Fantechi, R; Ferrante, I; Giassi, A; Gregorio, A; Ligabue, F; Lusiani, A; Marrocchesi, Ps; Messineo, A; Palla, F; Sanguinetti, G; Sciaba, A; Spagnolo, P; Steinberger, J; Tenchini, R; Tonelli, G; Vannini, C; Venturi, A; Verdini, Pg; Blair, Ga; Bryant, Lm; Chambers, Jt; Gao, Y; Green, Mg; Medcalf, T; Perrodo, P; Strong, Ja; Vonwimmerspergtoeller, Jh; Botterill, Dr; Clifft, Rw; Edgecock, Tr; Haywood, S; Maley, P; Norton, Pr; Thompson, Jc; Wright, Ae; Blochdevaux, B; Colas, P; Fabbro, B; Kozanecki, W; Lancon, E; Lemaire, Mc; Locci, E; Perez, P; Rander, J; Renardy, Jf; Rosowsky, A; Roussarie, A; Schuller, Jp; Schwindling, J; Trabelsi, A; Vallage, B; Black, Sn; Dann, Jh; Kim, Hy; Litke, Am; Mcneil, Ma; Taylor, G; Booth, Cn; Boswell, R; Brew, Caj; Cartwright, S; Combley, F; Kelly, Ms; Lehto, M; Newton, Wm; Reeve, J; Thompson, Lf; Affholderbach, K; Bohrer, A; Brandt, S; Cowan, G; Foss, J; Grupen, C; Saraiva, P; Smolik, L; Stephan, F; Apollonio, M; Bosisio, L; Dellamarina, R; Giannini, G; Gobbo, B; Musolino, G; Putz, J; Rothberg, J; Wasserbaech, S; Williams, Rw; Armstrong, Sr; Charles, E; Elmer, P; Ferguson, Dps; Gao, Ys; Gonzalez, S; Greening, Tc; Hayes, Oj; Hu, H; Jin, S; Mcnamara, Pa; Nachtman, Jm; Nielsen, J; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Ij; Walsh, J; Wu, Sl; Wu, X; Yamartino, Jm; Zobernig, G

doi:10.1016/S0370-2693(97)00460-7

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In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e(+)e(-) collisions was observed for the first time by the LEP experiments. An integrated luminosity of 11 pb(-1) was recorded in the ALEPH detector, in which WW candidate events were observed. In 6 events both Ws decay leptonically. In 16 events, one W decays leptonically, the other into hadrons. In the channel where both Ws decay into hadrons, a signal was separated from the large background by means of several multi-variate analyses. The W pair cross-section is measured to be sigma(ww) = 4.23 +/- 0.73(stat.) +/- 0.19(syst.) pb. From this cross-section, the W mass is derived within the framework of the Standard Model: m(w) = 80.14 +/- 0.34(stat.) +/- 0.09(syst.) +/- 0.03(LEP energy) GeV/c(2) (C) 1997 Published by Elsevier Science B.V. RI ANTONELLI, ANTONELLA/C-6238-2011; Jones, Roger/H-5578-2011; Wang, Chi/G-9004-2011; Passalacqua, Luca/F-5127-2011; Murtas, Fabrizio/B-5729-2012; St.Denis, Richard/C-8997-2012; Sanchez, Federico/F-5809-2012; Ferrante, Isidoro/F-1017-2012

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11384/7112

Titolo:	Measurement of the W mass in e(+)e(-) collisions at production threshold
Autori interni:	LIGABUE, FRANCO ROLANDI, LUIGI LUSIANI, Alberto
Data di pubblicazione:	1997
Rivista:	PHYSICS LETTERS. SECTION B
Abstract:	In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e(+)e(-) collisions was observed for the first time by the LEP experiments. An integrated luminosity of 11 pb(-1) was recorded in the ALEPH detector, in which WW candidate events were observed. In 6 events both Ws decay leptonically. In 16 events, one W decays leptonically, the other into hadrons. In the channel where both Ws decay into hadrons, a signal was separated from the large background by means of several multi-variate analyses. The W pair cross-section is measured to be sigma(ww) = 4.23 +/- 0.73(stat.) +/- 0.19(syst.) pb. From this cross-section, the W mass is derived within the framework of the Standard Model: m(w) = 80.14 +/- 0.34(stat.) +/- 0.09(syst.) +/- 0.03(LEP energy) GeV/c(2) (C) 1997 Published by Elsevier Science B.V. RI ANTONELLI, ANTONELLA/C-6238-2011; Jones, Roger/H-5578-2011; Wang, Chi/G-9004-2011; Passalacqua, Luca/F-5127-2011; Murtas, Fabrizio/B-5729-2012; St.Denis, Richard/C-8997-2012; Sanchez, Federico/F-5809-2012; Ferrante, Isidoro/F-1017-2012
Handle:	http://hdl.handle.net/11384/7112
Appare nelle tipologie:	1.1 Articolo in rivista

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