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Measurement of the t[bar over t] production cross section in the all-jets final state in pp collisions at √s = 8 TeV

Author(s)
Apyan, Aram; Barbieri, Richard Alexander; Baty, Austin Alan; Bierwagen, Katharina; Busza, Wit; Cali, Ivan Amos; Demiragli, Zeynep; Di Matteo, Leonardo; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Gulhan, Doga Can; Iiyama, Yutaro; Innocenti, Gian Michele; Klute, Markus; Kovalskyi, Dmytro; Lai, Yue Shi; Lee, Y.-J.; Levin, Andrew Michael; Luckey Jr, P David; Marini, Andrea Carlo; McGinn, Christopher Francis; Mironov, Camelia Maria; Niu, Xinmei; Paus, Christoph M. E.; Ralph, Duncan Kelley; Roland, Christof E; Roland, Gunther M; Salfeld-Nebgen, Jakob Maxillian Henry; Stephans, George S. F.; Sumorok, Konstanty C; Varma, Mukund Madhav; Velicanu, Dragos Alexandru; Veverka, Jan; Wang, J.; Wyslouch, Boleslaw; Yang, Mingming; Wyslouch, Victoria; Wang, Ta-Wei,Ph. D.Massachusetts Institute of Technology.; ... Show more Show less
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Abstract
The cross section for t[bar over t] production in the all-jets final state is measured in pp collisions at a centre-of-mass energy of 8 TeV at the LHC with the CMS detector, in data corresponding to an integrated luminosity of 18.4 fb[superscript −1]. The inclusive cross section is found to be 275.6±6.1(stat)±37.8(syst)±7.2(lumi) \,pb. The normalized differential cross sections are measured as a function of the top quark transverse momenta, pT, and compared to predictions from quantum chromodynamics. The results are reported at detector, parton, and particle levels. In all cases, the measured top quark pT spectra are significantly softer than theoretical predictions.
Date issued
2016-03
URI
http://hdl.handle.net/1721.1/106555
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
Khachatryan, V. et al. “Measurement of the T[bar over T] Production Cross Section in the All-Jets Final State in Pp Collisions at √s = 8 TeV” The European Physical Journal C 76.3 (2016): n. pag. © 2016 CERN for the benefit of the CMS collaboration
Version: Final published version
ISSN
1434-6044
1434-6052

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