Bibcode
Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; König, A.; Krammer, M.; Krätschmer, I.; Liko, D.; Matsushita, T.; Mikulec, I.; Rabady, D.; Rad, N.; Rahbaran, B.; Rohringer, H.; Schieck, J.; Schöfbeck, R.; Strauss, J.; Treberer-Treberspurg, W.; Waltenberger, W.; Wulz, C.-E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Alderweireldt, S.; Cornelis, T.; de Wolf, E. A.; Janssen, X.; Knutsson, A.; Lauwers, J.; Luyckx, S.; van de Klundert, M.; van Haevermaet, H.; van Mechelen, P.; van Remortel, N.; van Spilbeeck, A.; Abu Zeid, S.; Blekman, F.; D'Hondt, J.; Daci, N.; de Bruyn, I.; Deroover, K.; Heracleous, N.; Keaveney, J.; Lowette, S.; Moortgat, S.; Moreels, L.; Olbrechts, A.; Python, Q.; Strom, D.; Tavernier, S.; van Doninck, W.; van Mulders, P.; van Parijs, I.; Brun, H.; Caillol, C.; Clerbaux, B.; de Lentdecker, G.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Karapostoli, G.; Lenzi, T.; Léonard, A.; Maerschalk, T.; Marinov, A.; Randle-Conde, A.; Seva, T.; Vander Velde, C.; Vanlaer, P.; Yonamine, R.; Zenoni, F.; Zhang, F.; Benucci, L.; Cimmino, A.; Crucy, S.; Dobur, D.; Fagot, A.; Garcia, G.; Gul, M.; McCartin, J.; Ocampo Rios, A. A.; Poyraz, D.; Ryckbosch, D.; Salva, S.; Sigamani, M. et al.
Referencia bibliográfica
Physics Letters B, Volume 760, p. 365-386.
Fecha de publicación:
9
2016
Número de citas
18
Número de citas referidas
11
Descripción
The charge asymmetry in t t ‾ events is measured using dilepton
final states produced in pp collisions at the LHC at √{ s} = 8TeV.
The data sample, collected with the CMS detector, corresponds to an
integrated luminosity of 19.5fb-1. The measurements are
performed using events with two oppositely charged leptons (electrons or
muons) and two or more jets, where at least one of the jets is
identified as originating from a bottom quark. The charge asymmetry is
measured from differences in kinematic distributions, unfolded to the
parton level, of positively and negatively charged top quarks and
leptons. The t t ‾ and leptonic inclusive charge asymmetries are
found to be 0.011 ± 0.011(stat) ± 0.007(syst) and 0.003
± 0.006(stat) ± 0.003(syst), respectively. These results,
as well as charge asymmetry measurements made as a function of the
invariant mass, rapidity, and transverse momentum of the t t ‾
system, are in agreement with predictions of the standard model.