Compact Muon Solenoid
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| CMS-PAS-TOP-14-002 | ||
| Measurement of the top-quark mass in t t-bar events with all-jets final states in pp collisions at sqrt(s)=8 TeV | ||
| CMS Collaboration | ||
| 2014 | ||
| Abstract: The mass of the top quark is measured using a sample of $\rm{t}\bar{\rm t}$ candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at $\sqrt{s}=8$~TeV in 2012 and corresponds to an integrated luminosity of 18.2~fb$^{-1}$. For each event, a kinematic fit of the jets to a $\rm{t}\bar{\rm t}$ hypothesis is performed to reconstruct W-boson and top-quark candidates. From the fit results, the top-quark mass is simultaneously determined with an overall jet energy scale factor (JSF), constrained by the known mass of the W boson in $\rm{q}\bar{\rm q}$ decays. The top-quark mass is measured to be .08\pm 0.36\,\text{(stat.+JSF)} \pm 0.83\,\text{(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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