Measurement of the top quark mass using proton-proton data at √s = 7 and 8 TeV
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 19.7fb−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¯t production. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000115830Publication status
publishedExternal links
Journal / series
Physical Review DVolume
Pages / Article No.
Publisher
American Physical SocietySubject
Top quark; MassOrganisational unit
03381 - Pauss, Felicitas (emeritus)
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)
More
Show all metadata