Bibcode
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.; Krätschmer, I.; Liko, D.; Matsushita, T.; Mikulec, I.; Rabady, D.; Rad, N.; Rahbaran, B.; Rohringer, H.; Schieck, J.; Strauss, J.; Waltenberger, W.; Wulz, C.-E.; Dvornikov, O.; Makarenko, V.; Mossolov, V.; Gonzalez, J. Suarez; Zykunov, V.; Shumeiko, N.; Alderweireldt, S.; De Wolf, E. A.; Janssen, X.; Lauwers, J.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Van Spilbeeck, A.; Zeid, S. Abu; Blekman, F.; D'Hondt, J.; Daci, N.; De Bruyn, I.; Deroover, K.; Lowette, S.; Moortgat, S.; Moreels, L.; Olbrechts, A.; Python, Q.; Skovpen, K.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Karapostoli, G.; Lenzi, T.; Léonard, A.; Luetic, J.; Maerschalk, T.; Marinov, A.; Randle-conde, A.; Seva, T.; Velde, C. Vander; Vanlaer, P.; Vannerom, D.; Yonamine, R.; Zenoni, F.; Zhang, F.; Cimmino, A.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Salva, S.; Schöfbeck, R.; Tytgat, M.; Van Driessche, W.; Yazgan, E.; Zaganidis, N.; Bakhshiansohi, H.; Beluffi, C.; Bondu, O.; Brochet, S. et al.
Bibliographical reference
Journal of High Energy Physics, Volume 2017, Issue 10, article id. #6, 42 pp.
Advertised on:
10
2017
Citations
12
Refereed citations
11
Description
A measurement of the cross section for top quark-antiquark (
t\overline{t} ) pairs produced in association with a photon in
proton-proton collisions at √{s}=8 TeV is presented. The analysis
uses data collected with the CMS detector at the LHC, corresponding to
an integrated luminosity of 19.7 fb1. The signal is defined
as the production of a t\overline{t} pair in association with a photon
having a transverse energy larger than 25 GeV and an absolute
pseudorapidity smaller than 1.44. The measurement is performed in the
fiducial phase space corresponding to the semileptonic decay chain of
the t\overline{t} pair, and the cross section is measured relative to
the inclusive t\overline{t} pair production cross section. The fiducial
cross section for associated t\overline{t} pair and photon production is
found to be 127 ±27 (stat+syst) fb per semileptonic final state.
The measured value is in agreement with the theoretical prediction.
[Figure not available: see fulltext.]