In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2012, No. 12 ( 2012-12)
Abstract:
The mass of the top quark is measured using a sample of $ \mathrm{t}\overline{\mathrm{t}} $ candidate events with one electron or muon and at least four jets in the final state, collected by CMS in pp collisions at $ \sqrt{s}=7 $ TeV at the LHC. A total of 5174 candidate events is selected from data corresponding to an integrated luminosity of 5.0 fb −1 . For each event the mass is reconstructed from a kinematic fit of the decay products to a $ \mathrm{t}\overline{\mathrm{t}} $ hypothesis. The top-quark mass is determined simultaneously with the jet energy scale (JES), constrained by the known mass of the W boson in $ \mathrm{q}\overline{\mathrm{q}} $ decays, to be 173.49 ± 0.43 (stat. + JES) ±0.98 (syst.) GeV.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP12(2012)105
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2012
detail.hit.zdb_id:
2027350-2
