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Measurement of the top quark mass using proton-proton data at √(s) = 7 and 8 TeV

Author(s)
Apyan, Aram; Barbieri, Richard Alexander; Baty, Austin Alan; Bierwagen, Katharina; Brandt, Stephanie Akemi; 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, Yen-Jie; Levin, Andrew Michael; Luckey Jr, P David; Marini, Andrea Carlo; McGinn, Christopher Francis; Mironov, Camelia Maria; Narayanan, Siddharth Madhavan; 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.; Wang, Ta-Wei; Wyslouch, Stanislaw; Wyslouch, Victoria; Yang, Mingming, Ph. D. Massachusetts Institute of Technology; ... Show more Show less
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Abstract
A new set of measurements of the top quark mass are presented, based on the proton-proton data recorded by the CMS experiment at the LHC at √s = 8 TeV responding to a luminosity of 19.7 fb[superscript −1]. The top quark mass is measured using the lepton+ jets, all-jets and dilepton decay channels, giving values of 172.35 ± 0.16(stat)±0.48(syst) GeV, 172.32±0.25( stat)±0.59(syst)  GeV, and 172.82±0.19(stat)±1.22(syst) GeV, respectively. When combined with the published CMS results at √s = 7 TeV, they provide a top quark mass measurement of 172.44±0.13(stat)±0.47(syst) GeV. The top quark mass is also studied as a function of the event kinematical properties in the lepton + jets decay channel. No indications of a kinematic bias are observed and the collision data are consistent with a range of predictions from current theoretical models of t[bar over t] production.
Date issued
2016-04
URI
http://hdl.handle.net/1721.1/110623
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
Khachatryan, V. et al. “Measurement of the Top Quark Mass Using Proton-Proton Data at √(S) = 7 and 8 TeV.” Physical Review D 93.7 (2016): n. pag. © 2016 CERN, for the CMS Collaboration
Version: Final published version
ISSN
2470-0010
2470-0029

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