Indirect measurement of $\sin^2 θ_W$ (or $M_W$) using $μ^+μ^-$ pairs from $γ^*/Z$ bosons produced in $p\bar{p}$ collisions at a center-of-momentum energy of 1.96 TeV

Autor: Collaboration, CDF, Aaltonen, T, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, JA, Arisawa, T, Artikov, A, Asaadi, J, Ashmanskas, W, Auerbach, B, Aurisano, A, Azfar, F, Badgett, W, Bae, T, Barbaro-Galtieri, A, Barnes, VE, Barnett, BA, Barria, P, Bartos, P, Bauce, M, Bedeschi, F, Behari, S, Bellettini, G, Bellinger, J, Benjamin, D, Beretvas, A, Bhatti, A, Bland, KR, Blumenfeld, B, Bocci, A, Bodek, A, Bortoletto, D, Boudreau, J, Boveia, A, Brigliadori, L, Bromberg, C, Brucken, E, Budagov, J, Budd, HS, Burkett, K, Busetto, G, Bussey, P, Butti, P, Buzatu, A, Calamba, A, Camarda, S, Campanelli, M, Canelli, F, Carls, B, Carlsmith, D, Carosi, R, Carrillo, S, Casal, B, Casarsa, M, Castro, A, Catastini, P, Cauz, D, Cavaliere, V, Cavalli-Sforza, M, Cerri, A, Cerrito, L, Chen, YC, Chertok, M, Chiarelli, G, Chlachidze, G, Cho, K, Chokheli, D, Clark, A, Clarke, C, Convery, ME, Conway, J, Corbo, M, Cordelli, M, Cox, CA, Cox, DJ, Cremonesi, M, Cruz, D, Cuevas, J, Culbertson, R, d'Ascenzo, N, Datta, M, Barbaro, PD, Demortier, L, Marchese, L, Deninno, M, Devoto, F, D'Errico, M, Canto, AD, Ruzza, BD, Dittmann, JR, D'Onofrio, M, Donati, S, Dorigo, M, Driutti, A, Ebina, K, Edgar, R, Elagin, A, Erbacher, R, Errede, S, Esham, B, Farrington, S, Ramos, JPF, Field, R, Flanagan, G, Forrest, R, Franklin, M, Freeman, JC, Frisch, H, Funakoshi, Y, Galloni, C, Garfinkel, AF, Garosi, P, Gerberich, H, Gerchtein, E, Giagu, S, Giakoumopoulou, V, Gibson, K, Ginsburg, CM, Giokaris, N, Giromini, P, Giurgiu, G, Glagolev, V, Glenzinski, D, Gold, M, Goldin, D, Golossanov, A, Gomez, G, Gomez-Ceballos, G, Goncharov, M, López, OG, Gorelov, I, Goshaw, AT, Goulianos, K, Gramellini, E, Grinstein, S, Grosso-Pilcher, C, Group, RC, Costa, JGD, Hahn, SR, Han, JY, Happacher, F, Hara, K, Hare, M, Harr, RF, Harrington-Taber, T, Hatakeyama, K, Hays, C, Heinrich, J, Herndon, M, Hocker, A, Hong, Z, Hopkins, W, Hou, S, Hughes, RE, Husemann, U, Hussein, M, Huston, J, Introzzi, G, Iori, M, Ivanov, A, James, E, Jang, D, Jayatilaka, B, Jeon, EJ, Jindariani, S, Jones, M, Joo, KK, Jun, SY, Junk, TR, Kambeitz, M, Kamon, T, Karchin, PE, Kasmi, A, Kato, Y, Ketchum, W, Keung, J, Kilminster, B, Kim, DH, Kim, HS, Kim, JE, Kim, MJ, Kim, SB, Kim, SH, Kim, YK, Kim, YJ, Kimura, N, Kirby, M, Knoepfel, K, Kondo, K, Kong, DJ, Konigsberg, J, Kotwal, AV, Kreps, M, Kroll, J, Kruse, M, Kuhr, T, Kurata, M, Laasanen, AT, Lammel, S, Lancaster, M, Lannon, K, Latino, G, Lee, HS, Lee, JS, Leo, S, Leone, S, Lewis, JD, Limosani, A, Lipeles, E, Lister, A, Liu, H, Liu, Q, Liu, T, Lockwitz, S, Loginov, A, Lucà, A, Lucchesi, D, Lueck, J, Lujan, P, Lukens, P, Lungu, G, Lys, J, Lysak, R, Madrak, R, Maestro, P, Malik, S, Manca, G, Manousakis-Katsikakis, A, Margaroli, F, Marino, P, Martínez, M, Matera, K, Mattson, ME, Mazzacane, A, Mazzanti, P, McNulty, R, Mehta, A, Mehtala, P, Mesropian, C, Miao, T, Mietlicki, D, Mitra, A, Miyake, H, Moed, S, Moggi, N, Moon, CS, Moore, R, Morello, MJ, Mukherjee, A, Muller, T, Murat, P, Mussini, M, Nachtman, J, Nagai, Y, Naganoma, J, Nakano, I, Napier, A, Nett, J, Neu, C, Nigmanov, T, Nodulman, L, Noh, SY, Norniella, O, Oakes, L, Oh, SH, Oh, YD, Oksuzian, I, Okusawa, T, Orava, R, Ortolan, L, Pagliarone, C, Palencia, E, Palni, P, Papadimitriou, V, Parker, W, Pauletta, G, Paulini, M, Paus, C, Phillips, TJ, Piacentino, G, Pianori, E, Pilot, J, Pitts, K, Plager, C, Pondrom, L, Poprocki, S, Potamianos, K, Prokoshin, F, Pranko, A, Ptohos, F, Punzi, G, Ranjan, N, Fernández, IR, Renton, P, Rescigno, M, Rimondi, F, Ristori, L, Robson, A, Rodriguez, T, Rolli, S, Ronzani, M, Roser, R, Rosner, JL, Ruffini, F, Ruiz, A, Russ, J, Rusu, V, Sakumoto, WK, Sakurai, Y, Santi, L, Sato, K, Saveliev, V, Savoy-Navarro, A, Schlabach, P, Schmidt, EE, Schwarz, T, Scodellaro, L, Scuri, F, Seidel, S, Seiya, Y, Semenov, A, Sforza, F, Shalhout, SZ, Shears, T, Shepard, PF, Shimojima, M, Shochet, M, Shreyber-Tecker, I, Simonenko, A, Sliwa, K, Smith, JR, Snider, FD, Sorin, V, Song, H, Stancari, M, Denis, RS, Stentz, D, Strologas, J, Sudo, Y, Sukhanov, A, Suslov, I, Takemasa, K, Takeuchi, Y, Tang, J, Tecchio, M, Teng, PK, Thom, J, Thomson, E, Thukral, V, Toback, D, Tokar, S, Tollefson, K, Tomura, T, Tonelli, D, Torre, S, Torretta, D, Totaro, P, Trovato, M, Ukegawa, F, Uozumi, S, Vázquez, F, Velev, G, Vellidis, C, Vernieri, C, Vidal, M, Vilar, R, Vizán, J, Vogel, M, Volpi, G, Wagner, P, Wallny, R, Wang, SM, Waters, D, III, WCW, Whiteson, D, Wicklund, AB, Wilbur, S, Williams, HH, Wilson, JS, Wilson, P, Winer, BL, Wittich, P, Wolbers, S, Wolfe, H, Wright, T, Wu, X, Wu, Z, Yamamoto, K, Yamato, D, Yang, T, Yang, UK, Yang, YC, Yao, WM, Yeh, GP, Yi, K, Yoh, J, Yorita, K, Yoshida, T, Yu, GB, Yu, I, Zanetti, AM, Zeng, Y, Zhou, C, Zucchelli, S
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: PHYSICAL REVIEW D. 89(7)
ISSN: 1550-2368
1550-7998
Popis: Drell-Yan lepton pairs are produced in the process $p\bar{p} \rightarrow \mu^+\mu^- + X$ through an intermediate $\gamma^*/Z$ boson. The forward-backward asymmetry in the polar-angle distribution of the $\mu^-$ as a function of the invariant mass of the $\mu^+\mu^-$ pair is used to obtain the effective leptonic determination $\sin^2 \theta^{lept}_{eff}$ of the electroweak-mixing parameter $\sin^2 \theta_W$, from which the value of $\sin^2 \theta_W$ is derived assuming the standard model. The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to 9.2 fb-1 of integrated luminosity from $p\bar{p}$ collisions at a center-of-momentum energy of 1.96 TeV, and is the full CDF Run II data set. The value of $\sin^2 \theta^{lept}_{eff}$ is found to be 0.2315 +- 0.0010, where statistical and systematic uncertainties are combined in quadrature. When interpreted within the context of the standard model using the on-shell renormalization scheme, where $\sin^2 \theta_W = 1 - M_W^2/M_Z^2$, the measurement yields $\sin^2 \theta_W$ = 0.2233 +- 0.0009, or equivalently a W-boson mass of 80.365 +- 0.047 GeV/c^2. The value of the W-boson mass is in agreement with previous determinations in electron-positron collisions and at the Tevatron collider.
Databáze: OpenAIRE