Measurement of the top-quark mass in all-jets tt̄ events in pp collisions at √s = 7 TeV

doi:10.1140/EPJC/S10052-014-2758-X

Abstract:

The mass of the top quark is measured using a sample of $t\bar{t}$ 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 $\sqrt{s}$ = 7 TeV in 2011 and corresponds to an integrated luminosity of 3.54 inverse femtobarns. The mass is reconstructed for each event employing a kinematic fit of the jets to a $t\bar{t}$ hypothesis. The top-quark mass is measured to be 173.49 $\pm$ 0.69 (stat.) $\pm$ 1.21 (syst.) GeV. A combination with previously published measurements in other decay modes by CMS yields a mass of 173.54 $\pm$ 0.33 (stat.) $\pm$ 0.96 (syst.) GeV.

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Measurement of the top-quark mass in all-jets tt̄ events in pp collisions at √s = 7 TeV

Citations

Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV

First combination of Tevatron and LHC measurements of the top-quark mass

Measurement of the top quark mass using proton-proton data at √s=7 and 8 TeV

String formation beyond leading colour

Top-pair production and decay at NLO matched with parton showers

References

Geant4—a simulation toolkit

Review of Particle Physics

PYTHIA 6.4 Physics and Manual

The anti-$k_t$ jet clustering algorithm

The CMS experiment at the CERN LHC

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