Measurement of top quark polarization in t(t)over-bar lepton+jets final states

Autor: Abazov, VM, Abbott, B, Acharya, BS, Adams, M, Adams, T, Agnew, JP, Alexeev, GD, Alkhazov, G, Alton, A, Askew, A, Atkins, S, Augsten, K, Aushev, V, Aushev, Y, Avila, C, Badaud, F, Bagby, L, Baldin, B, Bandurin, DV, Banerjee, S, Barberis, E, Baringer, P, Bartlett, JF, Bassler, U, Bazterra, V, Bean, A, Begalli, M, Bellantoni, L, Beri, SB, Bernardi, G, Bernhard, R, Bertram, I, Besancon, M, Beuselinck, R, Bhat, PC, Bhatia, S, Bhatnagar, V, Blazey, G, Blessing, S, Bloom, K, Boehnlein, A, Boline, D, Boos, EE, Borissov, G, Borysova, M, Brandt, A, Brandt, O, Brochmann, M, Brock, R, Bross, A, Brown, D, Bu, XB, Buehler, M, Buescher, V, Bunichev, V, Burdin, S, Buszello, CP, Camacho-Perez, E, Casey, BCK, Castilla-Valdez, H, Caughron, S, Chakrabarti, S, Chan, KM, Chandra, A, Chapon, E, Chen, G, Cho, SW, Choi, S, Choudhary, B, Cihangir, S, Claes, D, Clutter, J, Cooke, M, Cooper, WE, Corcoran, M, Couderc, F, Cousinou, M-C, Cuth, J, Cutts, D, Das, A, Davies, G, de Jong, SJ, De La Cruz-Burelo, E, Deliot, F, Demina, R, Denisov, D, Denisov, SP, Desai, S, Deterre, C, DeVaughan, K, Diehl, HT, Diesburg, M, Ding, PF, Dominguez, A, Dubey, A, Dudko, LV, Duperrin, A, Dutt, S, Eads, M, Edmunds, D, Ellison, J, Elvira, VD, Enari, Y, Evans, H, Evdokimov, A, Evdokimov, VN, Faure, A, Feng, L, Ferbel, T, Fiedler, F, Filthaut, F, Fisher, W, Fisk, HE, Fortner, M, Fox, H, Franc, J, Fuess, S, Garbincius, PH, Garcia-Bellido, A, Garcia-Gonzalez, JA, Gavrilov, V, Geng, W, Gerber, CE, Gershtein, Y, Ginther, G, Gogota, O, Golovanov, G, Grannis, PD, Greder, S, Greenlee, H, Grenier, G, Gris, Ph, Grivaz, J-F, Grohsjean, A, Grunendahl, S, Grunewald, MW, Guillemin, T, Gutierrez, G, Gutierrez, P, Haley, J, Han, L, Harder, K, Harel, A, Hauptman, JM, Hays, J, Head, T, Hebbeker, T, Hedin, D, Hegab, H, Heinson, AP, Heintz, U, Hensel, C, Heredia-De La Cruz, I, Herner, K, Hesketh, G, Hildreth, MD, Hirosky, R, Hoang, T, Hobbs, JD, Hoeneisen, B, Hogan, J, Hohlfeld, M, Holzbauer, JL, Howley, I, Hubacek, Z, Hynek, V, Iashvili, I, Ilchenko, Y, Illingworth, R, Ito, AS, Jabeen, S, Jaffre, M, Jayasinghe, A, Jeong, MS, Jesik, R, Jiang, P, Johns, K, Johnson, E, Johnson, M, Jonckheere, A, Jonsson, P, Joshi, J, Jung, AW, Juste, A, Kajfasz, E, Karmanov, D, Katsanos, I, Kaur, M, Kehoe, R, Kermiche, S, Khalatyan, N, Khanov, A, Kharchilava, A, Kharzheev, YN, Kiselevich, I, Kohli, JM, Kozelov, AV, Kraus, J, Kumar, A, Kupco, A, Kurca, T, Kuzmin, VA, Lammers, S, Lebrun, P, Lee, HS, Lee, SW, Lee, WM, Lei, X, Lellouch, J, Li, D, Li, H, Li, L, Li, QZ, Lim, JK, Lincoln, D, Linnemann, J, Lipaev, VV, Lipton, R, Liu, H, Liu, Y, Lobodenko, A, Lokajicek, M, de Sa, R Lopes, Luna-Garcia, R, Lyon, AL, Maciel, AKA, Madar, R, Magana-Villalba, R, Malik, S, Malyshev, VL, Mansour, J, Martinez-Ortega, J, McCarthy, R, McGivern, CL, Meijer, MM, Melnitchouk, A, Menezes, D, Mercadante, PG, Merkin, M, Meyer, A, Meyer, J, Miconi, F, Mondal, NK, Mulhearn, M, Nagy, E, Narain, M, Nayyar, R, Neal, HA, Negret, JP, Neustroev, P, Nguyen, HT, Nunnemann, T, Orduna, J, Osman, N, Pal, A, Parashar, N, Parihar, V, Park, SK, Partridge, R, Parua, N, Patwa, A, Penning, B, Perfilov, M, Peters, Y, Petridis, K, Petrillo, G, Petroff, P, Pleier, M-A, Podstavkov, VM, Popov, AV, Prewitt, M, Price, D, Prokopenko, N, Qian, J, Quadt, A, Quinn, B, Ratoff, PN, Razumov, I, Ripp-Baudot, I, Rizatdinova, F, Rominsky, M, Ross, A, Royon, C, Rubinov, P, Ruchti, R, Sajot, G, Sanchez-Hernandez, A, Sanders, MP, Santos, AS, Savage, G, Savitskyi, M, Sawyer, L, Scanlon, T, Schamberger, RD, Scheglov, Y, Schellman, H, Schott, M, Schwanenberger, C, Schwienhorst, R, Sekaric, J, Severini, H, Shabalina, E, Shary, V, Shaw, S, Shchukin, AA, Shkola, O, Simak, V, Skubic, P, Slattery, P, Snow, GR, Snow, J, Snyder, S, Soldner-Rembold, S, Sonnenschein, L, Soustruznik, K, Stark, J, Stefaniuk, N, Stoyanova, DA, Strauss, M, Suter, L, Svoisky, P, Titov, M, Tokmenin, VV, Tsai, Y-T, Tsybychev, D, Tuchming, B, Tully, C, Uvarov, L, Uvarov, S, Uzunyan, S, Van Kooten, R, van Leeuwen, WM, Varelas, N, Varnes, EW, Vasilyev, IA, Verkheev, AY, Vertogradov, LS, Verzocchi, M, Vesterinen, M, Vilanova, D, Vokac, P, Wahl, HD, Wang, MHLS, Warchol, J, Watts, G, Wayne, M, Weichert, J, Welty-Rieger, L, Williams, MRJ, Wilson, GW, Wobisch, M, Wood, DR, Wyatt, TR, Xie, Y, Yamada, R, Yang, S, Yasuda, T, Yatsunenko, YA, Ye, W, Ye, Z, Yin, H, Yip, K, Youn, SW, Yu, JM, Zennamo, J, Zhao, TG, Zhou, B, Zhu, J, Zielinski, M, Zieminska, D, Zivkovic, L, Collaboration, D0
Přispěvatelé: Science and Technology Facilities Council (STFC)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: PHYSICAL REVIEW D
Popis: We present a measurement of top quark polarization in t ¯ t pair production in p ¯ p collisions at √ s = 1.96 TeV using data corresponding to 9.7 fb − 1 of integrated luminosity recorded with the D0 detector at the Fermilab Tevatron Collider. We consider final states containing a lepton and at least three jets. The polarization is measured through the distribution of lepton angles along three axes: the beam axis, the helicity axis, and the transverse axis normal to the t ¯ t production plane. This is the first measurement of top quark polarization at the Tevatron using lepton + jet final states and the first measurement of the transverse polarization in t ¯ t production. The observed distributions are consistent with standard model predictions of nearly no polarization.
Databáze: OpenAIRE