The top-quark mass is measured in proton-proton collisions at TeX using a data sample corresponding to an integrated luminosity of 5.0 fb−1 collected by the CMS experiment at the LHC. The measurement is performed in the dilepton decay channel TeX , where ℓ=e,μ. Candidate top-quark decays are selected by requiring two leptons, at least two jets, and imbalance in transverse momentum. The mass is reconstructed with an analytical matrix weighting technique using distributions derived from simulated samples. Using a maximum-likelihood fit, the top-quark mass is determined to be 172.5±0.4 (stat.)±1.5 (syst.) GeV.

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, E. Aguilo, et al. (2012). Measurement of the top-quark mass in $\mathrm{t}\overline{\mathrm{t}}$ events with dilepton final states in pp collisions at $\sqrt{s}=7\ \mbox{TeV}$. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 72, 2202-1-2202-21 [10.1140/epjc/s10052-012-2202-z].

Measurement of the top-quark mass in $\mathrm{t}\overline{\mathrm{t}}$ events with dilepton final states in pp collisions at $\sqrt{s}=7\ \mbox{TeV}$

BONACORSI, DANIELE;BRAIBANT, SYLVIE;BRIGLIADORI, LUCA;CAPILUPPI, PAOLO;CASTRO, ANDREA;CUFFIANI, MARCO;FANFANI, ALESSANDRA;FASANELLA, DANIELE;GUIDUCCI, LUIGI;MENEGHELLI, MARCO;NAVARRIA, FRANCESCO LUIGI;PRIMAVERA, FEDERICA;ROSSI, ANTONIO MARIA;ROVELLI, TIZIANO;SIROLI, GIAN PIERO;
2012

Abstract

The top-quark mass is measured in proton-proton collisions at TeX using a data sample corresponding to an integrated luminosity of 5.0 fb−1 collected by the CMS experiment at the LHC. The measurement is performed in the dilepton decay channel TeX , where ℓ=e,μ. Candidate top-quark decays are selected by requiring two leptons, at least two jets, and imbalance in transverse momentum. The mass is reconstructed with an analytical matrix weighting technique using distributions derived from simulated samples. Using a maximum-likelihood fit, the top-quark mass is determined to be 172.5±0.4 (stat.)±1.5 (syst.) GeV.
2012
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, E. Aguilo, et al. (2012). Measurement of the top-quark mass in $\mathrm{t}\overline{\mathrm{t}}$ events with dilepton final states in pp collisions at $\sqrt{s}=7\ \mbox{TeV}$. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 72, 2202-1-2202-21 [10.1140/epjc/s10052-012-2202-z].
S. Chatrchyan;V. Khachatryan;A. M. Sirunyan;A. Tumasyan;W. Adam;E. Aguilo;T. Bergauer;M. Dragicevic;J. Erö;C. Fabjan;M. Friedl;R. Frühwirth;V. M. Ghet...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/145291
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