Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-TOP-15-002 | ||
| Measurement of the top-quark mass from the b jet energy spectrum | ||
| CMS Collaboration | ||
| September 2015 | ||
| Abstract: The top-quark mass is measured using the peak position of the energy distribution of b jets produced from top-quark decays. The analysis is based on a recent theoretical proposal. The measurement is carried out selecting $ \mathrm{ t \overline{t} } $ events with one electron and one muon in the final state in proton-proton collision data at $ \sqrt{s}=$ 8 TeV, corresponding to an integrated luminosity of 19.7 fb$^{-1}$. The fitted peak position of the observed energy distribution is calibrated using simulated events and translated to a top-quark mass measurement using relativistic kinematics, with the result $ m_{ \mathrm{t} }= $ 172.29 $\pm$ 1.17 (stat.) $\pm$ 2.66 (syst.) GeV. | ||
| Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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