Evidence for a mass dependent forward-backward asymmetry in top quark pair production Academic Article uri icon

abstract

  • We present a new measurement of the inclusive forward-backward tt production asymmetry and its rapidity and mass dependence. The measurements are performed with data corresponding to an integrated luminosity of 5.3fb -1 of pp collisions at s=1.96TeV, recorded with the CDF-II Detector at the Fermilab Tevatron. Significant inclusive asymmetries are observed in both the laboratory frame and the tt rest frame, and in both cases are found to be consistent with CP conservation under interchange of t and t. In the tt rest frame, the asymmetry is observed to increase with the tt rapidity difference, y, and with the invariant mass M tt of the tt system. Fully corrected parton-level asymmetries are derived in two regions of each variable, and the asymmetry is found to be most significant at large y and Mtt. For Mtt?450GeV/c2, the parton-level asymmetry in the tt rest frame is Att=0.4750.114 compared to a next-to-leading order QCD prediction of 0.0880.013. 2011 American Physical Society.

published proceedings

  • Physical Review D

altmetric score

  • 38.44

author list (cited authors)

  • Aaltonen, T., lvarez Gonzlez, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., ... Zucchelli, S.

citation count

  • 284

complete list of authors

  • Aaltonen, T||Álvarez González, B||Amerio, S||Amidei, D||Anastassov, A||Annovi, A||Antos, J||Apollinari, G||Appel, JA||Apresyan, A||Arisawa, T||Artikov, A||Asaadi, J||Ashmanskas, W||Auerbach, B||Aurisano, A||Azfar, F||Badgett, W||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Barria, P||Bartos, P||Bauce, M||Bauer, G||Bedeschi, F||Beecher, D||Behari, S||Bellettini, G||Bellinger, J||Benjamin, D||Beretvas, A||Bhatti, A||Binkley, M||Bisello, D||Bizjak, I||Bland, KR||Blumenfeld, B||Bocci, A||Bodek, A||Bortoletto, D||Boudreau, J||Boveia, A||Brau, B||Brigliadori, L||Brisuda, A||Bromberg, C||Brucken, E||Bucciantonio, M||Budagov, J||Budd, HS||Budd, S||Burkett, K||Busetto, G||Bussey, P||Buzatu, A||Calancha, C||Camarda, S||Campanelli, M||Campbell, M||Canelli, F||Canepa, A||Carls, B||Carlsmith, D||Carosi, R||Carrillo, S||Carron, 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||Chlebana, F||Cho, K||Chokheli, D||Chou, JP||Chung, WH||Chung, YS||Ciobanu, CI||Ciocci, MA||Clark, A||Compostella, G||Convery, ME||Conway, J||Corbo, M||Cordelli, M||Cox, CA||Cox, DJ||Crescioli, F||Cuenca Almenar, C||Cuevas, J||Culbertson, R||Dagenhart, D||d’Ascenzo, N||Datta, M||de Barbaro, P||De Cecco, S||De Lorenzo, G||Dell’Orso, M||Deluca, C||Demortier, L||Deng, J||Deninno, M||Devoto, F||d’Errico, M||Di Canto, A||Di Ruzza, B||Dittmann, JR||D’Onofrio, M||Donati, S||Dong, P||Dorigo, M||Dorigo, T||Ebina, K||Elagin, A||Eppig, A||Erbacher, R||Errede, D||Errede, S||Ershaidat, N||Eusebi, R||Fang, HC||Farrington, S||Feindt, M||Fernandez, JP||Ferrazza, C||Field, R||Flanagan, G||Forrest, R||Frank, MJ||Franklin, M||Freeman, JC||Funakoshi, Y||Furic, I||Gallinaro, M||Galyardt, J||Garcia, JE||Garfinkel, AF||Garosi, P||Gerberich, H||Gerchtein, E||Giagu, S||Giakoumopoulou, V||Giannetti, P||Gibson, K||Ginsburg, CM||Giokaris, N||Giromini, P||Giunta, M||Giurgiu, G||Glagolev, V||Glenzinski, D||Gold, M||Goldin, D||Goldschmidt, N||Golossanov, A||Gomez, G||Gomez-Ceballos, G||Goncharov, M||González, O||Gorelov, I||Goshaw, AT||Goulianos, K||Gresele, A||Grinstein, S||Grosso-Pilcher, C||Group, RC||Guimaraes da Costa, J||Gunay-Unalan, Z||Haber, C||Hahn, SR||Halkiadakis, E||Hamaguchi, A||Han, JY||Happacher, F||Hara, K||Hare, D||Hare, M||Harr, RF||Hatakeyama, K||Hays, C||Heck, M||Heinrich, J||Herndon, M||Hewamanage, S||Hidas, D||Hocker, A||Hopkins, W||Horn, D||Hou, S||Hughes, RE||Hurwitz, M||Husemann, U||Hussain, N||Hussein, M||Huston, J||Introzzi, G||Iori, M||Ivanov, A||James, E||Jang, D||Jayatilaka, B||Jeon, EJ||Jha, MK||Jindariani, S||Johnson, W||Jones, M||Joo, KK||Jun, SY||Junk, TR||Kamon, T||Karchin, PE||Kato, Y||Ketchum, W||Keung, J||Khotilovich, V||Kilminster, B||Kim, DH||Kim, HS||Kim, HW||Kim, JE||Kim, MJ||Kim, SB||Kim, SH||Kim, YK||Kimura, N||Kirby, M||Klimenko, S||Kondo, K||Kong, DJ||Konigsberg, J||Kotwal, AV||Kreps, M||Kroll, J||Krop, D||Krumnack, N||Kruse, M||Krutelyov, V||Kuhr, T||Kurata, M||Kwang, S||Laasanen, AT||Lami, S||Lammel, S||Lancaster, M||Lander, RL||Lannon, K||Lath, A||Latino, G||Lazzizzera, I||LeCompte, T||Lee, E||Lee, HS||Lee, JS||Lee, SW||Leo, S||Leone, S||Lewis, JD||Lin, C-J||Linacre, J||Lindgren, M||Lipeles, E||Lister, A||Litvintsev, DO||Liu, C||Liu, Q||Liu, T||Lockwitz, S||Lockyer, NS||Loginov, A||Lucchesi, D||Lueck, J||Lujan, P||Lukens, P||Lungu, G||Lys, J||Lysak, R||Madrak, R||Maeshima, K||Makhoul, K||Maksimovic, P||Malik, S||Manca, G||Manousakis-Katsikakis, A||Margaroli, F||Marino, C||Martínez, M||Martínez-Ballarín, R||Mastrandrea, P||Mathis, M||Mattson, ME||Mazzanti, P||McFarland, KS||McIntyre, P||McNulty, R||Mehta, A||Mehtala, P||Menzione, A||Mesropian, C||Miao, T||Mietlicki, D||Mitra, A||Miyake, H||Moed, S||Moggi, N||Mondragon, MN||Moon, CS||Moore, R||Morello, MJ||Morlock, J||Movilla Fernandez, P||Mukherjee, A||Muller, Th||Murat, P||Mussini, M||Nachtman, J||Nagai, Y||Naganoma, J||Nakano, I||Napier, A||Nett, J||Neu, C||Neubauer, MS||Nielsen, J||Nodulman, L||Norniella, O||Nurse, E||Oakes, L||Oh, SH||Oh, YD||Oksuzian, I||Okusawa, T||Orava, R||Ortolan, L||Pagan Griso, S||Pagliarone, C||Palencia, E||Papadimitriou, V||Paramonov, AA||Patrick, J||Pauletta, G||Paulini, M||Paus, C||Pellett, DE||Penzo, A||Phillips, TJ||Piacentino, G||Pianori, E||Pilot, J||Pitts, K||Plager, C||Pondrom, L||Potamianos, K||Poukhov, O||Prokoshin, F||Pronko, A||Ptohos, F||Pueschel, E||Punzi, G||Pursley, J||Rahaman, A||Ramakrishnan, V||Ranjan, N||Redondo, I||Renton, P||Rescigno, M||Rimondi, F||Ristori, L||Robson, A||Rodrigo, T||Rodriguez, T||Rogers, E||Rolli, S||Roser, R||Rossi, M||Rubbo, F||Ruffini, F||Ruiz, A||Russ, J||Rusu, V||Safonov, A||Sakumoto, WK||Sakurai, Y||Santi, L||Sartori, L||Sato, K||Saveliev, V||Savoy-Navarro, A||Schlabach, P||Schmidt, A||Schmidt, EE||Schmidt, MP||Schmitt, M||Schwarz, T||Scodellaro, L||Scribano, A||Scuri, F||Sedov, A||Seidel, S||Seiya, Y||Semenov, A||Sforza, F||Sfyrla, A||Shalhout, SZ||Shears, T||Shepard, PF||Shimojima, M||Shiraishi, S||Shochet, M||Shreyber, I||Simonenko, A||Sinervo, P||Sissakian, A||Sliwa, K||Smith, JR||Snider, FD||Soha, A||Somalwar, S||Sorin, V||Squillacioti, P||Stancari, M||Stanitzki, M||St. Denis, R||Stelzer, B||Stelzer-Chilton, O||Stentz, D||Strologas, J||Strycker, GL||Sudo, Y||Sukhanov, A||Suslov, I||Takemasa, K||Takeuchi, Y||Tang, J||Tecchio, M||Teng, PK||Thom, J||Thome, J||Thompson, GA||Thomson, E||Ttito-Guzmán, P||Tkaczyk, S||Toback, D||Tokar, S||Tollefson, K||Tomura, T||Tonelli, D||Torre, S||Torretta, D||Totaro, P||Trovato, M||Tu, Y||Ukegawa, F||Uozumi, S||Varganov, A||Vázquez, F||Velev, G||Vellidis, C||Vidal, M||Vila, I||Vilar, R||Vogel, M||Volpi, G||Wagner, P||Wagner, RL||Wakisaka, T||Wallny, R||Wang, SM||Warburton, A||Waters, D||Weinberger, M||Wester, WC||Whitehouse, B||Whiteson, D||Wicklund, AB||Wicklund, E||Wilbur, S||Wick, F||Williams, HH||Wilson, JS||Wilson, P||Winer, BL||Wittich, P||Wolbers, S||Wolfe, H||Wright, T||Wu, X||Wu, Z||Yamamoto, K||Yamaoka, J||Yang, T||Yang, UK||Yang, YC||Yao, W-M||Yeh, GP||Yi, K||Yoh, J||Yorita, K||Yoshida, T||Yu, GB||Yu, I||Yu, SS||Yun, JC||Zanetti, A||Zeng, Y||Zucchelli, S

publication date

  • June 2011