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Abstract: A first measurement of the top quark mass in the decay channel t ? (W ? ??) (b ? J/? + X ? ?+?? + 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 tt¯tt¯ and single top quark candidate events containing a reconstructed J/? candidate decaying into an oppositely-charged muon pair. The mass of the (J/? + ?) system, where ? 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.
Fuente: Journal of High Energy Physics, Vol. 2016, Num. 12, Art. Num. 123
Publisher: Springer Verlag
Publication date: 01/12/2016
No. of pages: 39
Publication type: Article
DOI: 10.1007/JHEP12(2016)123
ISSN: 1126-6708,1029-8479
Publication Url: https://doi.org/10.1007/JHEP12(2016)123
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KHACHATRYAN, VLADIMIR
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
JUAN RAMON CASTIÑEIRAS DE SAA
ESTEBAN CURRAS RIVERA
MARCOS FERNANDEZ GARCIA
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
CELSO MARTINEZ RIVERO
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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