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

CMS Collaboration

Research output: Contribution to journalArticleResearchpeer-review

59 Citations (Scopus)

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 corresponding to a luminosity of 19.7 fb−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 tt¯ production.
Original languageEnglish
Article number072004
Number of pages37
JournalPhysical Review D
Volume93
Issue number7
DOIs
Publication statusPublished - 2016
Externally publishedYes

Keywords

  • Quarks
  • Quark production
  • Production

Cite this