Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/13470
Title: Measurement of the integrated and differential t t production cross sections for high- p T top quarks in pp collisions at s =8 TeV
Authors: Khachatryan, V
Sirunyan, AM
Tumasyan, A
Adam, W
Asilar, E
Bergauer, T
Brandstetter, J
Brondolin, E
Dragicevic, M
Erö, J
Flechl, M
Friedl, M
Frühwirth, R
Ghete, VM
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
Strauss, J
Treberer-Treberspurg, W
Waltenberger, W
Wulz, CE
Mossolov, V
Shumeiko, N
Suarez Gonzalez, J
Alderweireldt, S
Cornelis, T
De Wolf, EA
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
Issue Date: 2016
Publisher: American Physical Society
Citation: Physical Review D, 94(7): pp. 1-25, (2016)
Abstract: The cross section for pair production of top quarks (tt) with high transverse momenta is measured in pp collisions, collected with the CMS detector at the LHC with s=8 TeV in data corresponding to an integrated luminosity of 19.7 fb-1. The measurement is performed using lepton+jets events, where one top quark decays semileptonically, while the second top quark decays to a hadronic final state. The hadronic decay is reconstructed as a single, large-radius jet, and identified as a top quark candidate using jet substructure techniques. The integrated cross section and the differential cross sections as a function of top quark pT and rapidity are measured at particle level within a fiducial region related to the detector-level requirements and at parton level. The particle-level integrated cross section is found to be σtt=0.499±0.035(stat+syst)±0.095(theo)±0.013(lumi) pb for top quark pT>400 GeV. The parton-level measurement is σtt=1.44±0.10(stat+syst)±0.29(theo)±0.04(lumi) pb. The integrated and differential cross section results are compared to predictions from several event generators.
URI: http://bura.brunel.ac.uk/handle/2438/13470
DOI: http://dx.doi.org/10.1103/PhysRevD.94.072002
ISSN: 1550-7998
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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