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.; Knünz, V.; König, A.; Krammer, M.; Krätschmer, I.; Liko, D.; Matsushita, T.; Mikulec, I.; Rabady, D.; 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.; Ochesanu, S.; Rougny, R.; 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.; Moreels, L.; Olbrechts, A.; Python, Q.; Strom, D.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Onsem, G. P.; Van Parijs, I.; Barria, P.; Caillol, C.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Fasanella, G.; Favart, L.; Gay, A. P. R.; Grebenyuk, A.; Lenzi, T.; Léonard, A.; Maerschalk, T.; Marinov, A.; Perniè, L.; Randle-conde, A.; Reis, T.; Seva, T.; Vander Velde, C.; Vanlaer, P.; Yonamine, R.; Zenoni, F.; Zhang, F.; Beernaert, K.; Benucci, L.; Cimmino, A.; Crucy, S.; Dobur, D.; Fagot, A.; Garcia, G.; Gul, M.; Mccartin, J. et al.
Bibliographical reference
Physics Letters B, Volume 757, p. 154-179.
Advertised on:
6
2016
Citations
10
Refereed citations
9
Description
The t t bar charge asymmetry is measured in proton-proton collisions at
a centre-of-mass energy of 8 TeV. The data, collected with the CMS
experiment at the LHC, correspond to an integrated luminosity of 19.7
fb-1. Selected events contain an electron or a muon and four
or more jets, where at least one jet is identified as originating from
b-quark hadronization. The inclusive charge asymmetry is found to be
0.0010 ± 0.0068 (stat) ± 0.0037 (syst). In addition,
differential charge asymmetries as a function of rapidity, transverse
momentum, and invariant mass of the t t bar system are studied. For the
first time at the LHC, the measurements are also performed in a reduced
fiducial phase space of top quark pair production, with an integrated
result of - 0.0035 ± 0.0072 (stat) ± 0.0031 (syst). All
measurements are consistent within two standard deviations with zero
asymmetry as well as with the predictions of the standard model.