Measurement of the W mass in $e^+ e^-$ collisions at 183 GeV

Mostrar otras versiones (1)

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 57 pb$^{-1}$ collected with the ALEPH detector in 1997 at a centre-of-mass energy of 183 GeV. The invariant mass distributions of reweighted Monte Carlo events...

Descripción completa

Detalles Bibliográficos
Autores principales: Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, Martin, F, Merle, E, Minard, M N, Pietrzyk, B, Alemany, R, Casado, M P, Chmeissani, M, Crespo, J M, Fernández, E, Fernández-Bosman, M, Garrido, L, Graugès-Pous, E, Juste, A, Martínez, M, Merino, G, Miquel, R, Mir, L M, Morawitz, P, Pacheco, A, Park, I C, Riu, I, Colaleo, A, Creanza, D, De Palma, M, Gelao, G, Iaselli, Giuseppe, Maggi, G, Maggi, M, 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, Becker, U, Boix, G, Cattaneo, M, Ciulli, V, Dissertori, G, Drevermann, H, Forty, Roger W, Frank, M, Gianotti, F, Halley, A W, Hansen, J B, Harvey, J, Janot, P, Jost, B, Lehraus, Ivan, Leroy, O, Loomis, C, Maley, P, Mato, P, Minten, Adolf G, Moutoussi, A, Ranjard, F, Rolandi, Luigi, Rousseau, D, Schlatter, W D, Schmitt, M, Schneider, O, Tejessy, W, Teubert, F, Tomalin, I R, Tournefier, E, Vreeswijk, M, Ajaltouni, Ziad J, Badaud, F, Chazelle, G, Deschamps, O, Dessagne, S, Falvard, A, Ferdi, C, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, J C, Pallin, D, Perret, P, Podlyski, F, Hansen, J D, Hansen, J R, Hansen, P H, Nilsson, B S, Rensch, B, Wäänänen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, Errietta, Vayaki, Anna, Blondel, A, Brient, J C, Machefert, F P, Rougé, A, Swynghedauw, M, Tanaka, R, Valassi, Andrea, Videau, H L, Focardi, E, Parrini, G, Zachariadou, K, Cavanaugh, R J, Corden, M, Georgiopoulos, C H, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Passalacqua, L, Pepé-Altarelli, M, Chalmers, M, Curtis, L, Lynch, J G, Negus, P, O'Shea, V, Räven, B, Raine, C, Smith, D, Teixeira-Dias, P, Thompson, A S, Ward, J J, Buchmüller, O L, Dhamotharan, S, Geweniger, C, Hanke, P, Hansper, G, Hepp, V, Kluge, E E, Onk, A L, Putzer, A, Schmidt, G, Sommer, J, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, David M, Cameron, W, Dornan, Peter J, Girone, M, Goodsir, S M, Marinelli, N, Martin, E B, Nash, J, Nowell, J, Sedgbeer, J K, Spagnolo, P, Thomson, E, Williams, M D, Ghete, V M, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Betteridge, A P, Bowdery, C K, Buck, P G, Colrain, P, Crawford, G, Ellis, G, Finch, A J, Foster, F, Hughes, G, Jones, R W L, Robertson, N A, Williams, M, Van Gemmeren, P, Giehl, I, Hölldorfer, F, Hoffmann, C, Jakobs, K, Kleinknecht, K, Kröcker, M, Nürnberger, H A, Quast, G, Renk, B, Rohne, E, Sander, H G, Schmeling, S, Wachsmuth, H W, Zeitnitz, C, Ziegler, T, Aubert, Jean-Jacques, Benchouk, C, Bonissent, A, Carr, J, Coyle, P, Ealet, A, Fouchez, D, Motsch, F, Payre, P, Talby, M, Thulasidas, M, Tilquin, A, Aleppo, M, Antonelli, M, Ragusa, F, Berlich, R, Büscher, V, Dietl, H, Ganis, G, Hüttmann, K, Lütjens, G, Mannert, C, Männer, W, Moser, H G, Schael, S, Settles, Ronald, Seywerd, H C J, Stenzel, H, Wiedenmann, W, Wolf, G, Boucrot, J, Callot, O, Chen, S, Davier, M, Duflot, L, Grivaz, J F, Heusse, P, Jacholkowska, A, Kado, M, Kim, D W, Lefrançois, J, Serin, L, Veillet, J J, Videau, I, De Vivie de Régie, J B, Zerwas, D, Azzurri, P, Bagliesi, G, Bettarini, S, Boccali, T, Bozzi, C, Calderini, G, Dell'Orso, R, D'Onofrio, G, Fantechi, R, Ferrante, I, Giassi, A, Gregorio, A, Ligabue, F, Lusiani, A, Marrocchesi, P S, Messineo, A, Palla, Fabrizio, Rizzo, G, Sanguinetti, G, Sciabà, A, Sguazzoni, G, Tenchini, Roberto, Vannini, C, Venturi, A, Verdini, P G, Blair, G A, Chambers, J T, Coles, J, Cowan, G D, Green, M G, Hutchcroft, D E, Jones, L T, Medcalf, T, Strong, J A, Von Wimmersperg-Töller, J H, Botterill, David R, Clifft, R W, Edgecock, T R, Norton, P R, Thompson, J C, Wright, A E, Bloch-Devaux, B, Colas, P, Fabbro, B, Faïf, G, Lançon, E, Lemaire, M C, Locci, E, Pérez, P, Przysiezniak, H, Rander, J, Renardy, J F, Rosowsky, A, Trabelsi, A, Tuchming, B, Vallage, B, Black, S N, Dann, J H, Kim, H Y, Konstantinidis, N P, Litke, A M, McNeil, M A, Taylor, G, Booth, C N, Cartwright, S L, Combley, F, Hodgson, P N, Kelly, M S, Lehto, M H, Thompson, L F, Affholderbach, K, Böhrer, A, Brandt, S, Foss, J, Grupen, Claus, Misiejuk, A, Prange, G, Sieler, U, Smolik, L, Stephan, F, Giannini, G, Gobbo, B, Pütz, J, Rothberg, J E, Wasserbaech, S R, Williams, R W, Armstrong, S R, Charles, E, Elmer, P, Ferguson, D P S, Gao, Y, González, S, Greening, T C, Hayes, O J, Hu, H, Jin, S, Mamier, G, McNamara, P A, Nachtman, J M, Nielsen, J, Orejudos, W, Pan, Y B, Saadi, Y, Scott, I J, Vogt, M, Walsh, J, Wu Sau Lan, Wu, X, Zobernig, G
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/382023
Descripción
Sumario:The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 57 pb$^{-1}$ collected with the ALEPH detector in 1997 at a centre-of-mass energy of 183 GeV. The invariant mass distributions of reweighted Monte Carlo events are fitted separately to the experimental distributions in the $qqbarqqbar$ and all $l\nuqqbar$ channels to give the following W masses: $m_{W}^{hadronic} = 80.461 \pm 0.177(stat.) \pm 0.045(syst.) \pm 0.056(theory) GeV/c^2$, $m_{W}^{semileptonic} = 80.326 \pm 0.184(stat.) \pm 0.040(syst.) GeV/c^2$ where the theory error represents the possible effects of final state interactions. The combination of these two measurements, including the LEP energy calibration uncertainty, gives $m_{W} = 80.393 \pm 0.128(stat.)\pm 0.041(syst.) \pm 0.028(theory)\pm 0.021(LEP) GeV/c^2.

Ejemplares similares