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Measurement of the top quark mass using proton-proton data at $\sqrt{s}$ = 7 and 8 TeV


CMS Collaboration; Canelli, F; Chiochia, V; Kilminster, B; Robmann, P; et al (2016). Measurement of the top quark mass using proton-proton data at $\sqrt{s}$ = 7 and 8 TeV. Physical review. D, 93(7):072004.

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 $\sqrt{s}$ = 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 $\sqrt{s}$ = 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 $t\overline{t}$ production.

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 $\sqrt{s}$ = 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 $\sqrt{s}$ = 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 $t\overline{t}$ production.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Date:2016
Deposited On:09 Jan 2017 09:19
Last Modified:08 Mar 2017 10:39
Publisher:American Physical Society
ISSN:2470-0010
Publisher DOI:https://doi.org/10.1103/PhysRevD.93.072004

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