A first measurement of the top quark mass in the decay channel t → (W → ℓν) (b → J/ψ + X → μ+μ− + X) is presented. The analysis uses events selected from the proton-proton collisions recorded by the CMS detector at the LHC at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of 19.7 fb−1, with 666 t t ¯ and single top quark candidate events containing a reconstructed J/ψ candidate decaying into an oppositely-charged muon pair. The mass of the (J/ψ + ℓ) system, where ℓ is an electron or a muon from W boson decay, is used to extract a top quark mass of 173.5 ± 3.0 (stat) ± 0.9 (syst) GeV.

The CMS collaboration, N., Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Asilar, E., et al. (2016). Measurement of the mass of the top quark in decays with a J/ψ meson in pp collisions at 8 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2016(12), 1-39 [10.1007/JHEP12(2016)123].

Measurement of the mass of the top quark in decays with a J/ψ meson in pp collisions at 8 TeV

BATTILANA, CARLO;BONACORSI, DANIELE;BRAIBANT, SYLVIE;CAMPANINI, RENATO;CAPILUPPI, PAOLO;CASTRO, ANDREA;CODISPOTI, GIUSEPPE;CUFFIANI, MARCO;FANFANI, ALESSANDRA;FASANELLA, DANIELE;GUIDUCCI, LUIGI;NAVARRIA, FRANCESCO LUIGI;ROSSI, ANTONIO MARIA;ROVELLI, TIZIANO;SIROLI, GIAN PIERO;TOSI, NICOLÒ;
2016

Abstract

A first measurement of the top quark mass in the decay channel t → (W → ℓν) (b → J/ψ + X → μ+μ− + X) is presented. The analysis uses events selected from the proton-proton collisions recorded by the CMS detector at the LHC at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of 19.7 fb−1, with 666 t t ¯ and single top quark candidate events containing a reconstructed J/ψ candidate decaying into an oppositely-charged muon pair. The mass of the (J/ψ + ℓ) system, where ℓ is an electron or a muon from W boson decay, is used to extract a top quark mass of 173.5 ± 3.0 (stat) ± 0.9 (syst) GeV.
2016
The CMS collaboration, N., Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Asilar, E., et al. (2016). Measurement of the mass of the top quark in decays with a J/ψ meson in pp collisions at 8 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2016(12), 1-39 [10.1007/JHEP12(2016)123].
The CMS collaboration, Null; Khachatryan, V; Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragic...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/596131
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