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

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. Furthermore, 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.
Authors:
 [1]
  1. Yerevan Physics Institute, Yerevan (Armenia). et al.
Publication Date:
Report Number(s):
FERMILAB-PUB-15-472-CMS; CMS-TOP-14-022; CERN-PH-EP-2015-234; arXiv:1509.04044
Journal ID: ISSN 2470-0010; PRVDAQ; 1393269
Grant/Contract Number:
AC02-07CH11359
Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 93; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
CMS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1246194
Alternate Identifier(s):
OSTI ID: 1248039

Khachatryan, Vardan. Measurement of the top quark mass using proton-proton data at $\sqrt{s}$ = 7 and 8 TeV. United States: N. p., Web. doi:10.1103/PhysRevD.93.072004.
Khachatryan, Vardan. Measurement of the top quark mass using proton-proton data at $\sqrt{s}$ = 7 and 8 TeV. United States. doi:10.1103/PhysRevD.93.072004.
Khachatryan, Vardan. 2016. "Measurement of the top quark mass using proton-proton data at $\sqrt{s}$ = 7 and 8 TeV". United States. doi:10.1103/PhysRevD.93.072004.
@article{osti_1246194,
title = {Measurement of the top quark mass using proton-proton data at $\sqrt{s}$ = 7 and 8 TeV},
author = {Khachatryan, Vardan},
abstractNote = {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. Furthermore, 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.},
doi = {10.1103/PhysRevD.93.072004},
journal = {Physical Review D},
number = 7,
volume = 93,
place = {United States},
year = {2016},
month = {4}
}