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Abstract: The double-differential cross sections of promptly produced J/? and ?(2S) mesons are measured in pp collisions at vs = 7??TeV, as a function of transverse momentum pT and absolute rapidity |y|. The analysis uses J/? and ?(2S) dimuon samples collected by the CMS experiment, corresponding to integrated luminosities of 4.55 and 4.90 fb-1, respectively. The results are based on a two-dimensional analysis of the dimuon invariant mass and decay length, and extend to pT = 120 and 100 GeV for the J/? and ?(2S), respectively, when integrated over the interval |y| < 1.2. The ratio of the ?(2S) to J/? cross sections is also reported for |y| < 1.2, over the range 10 < pT < 100??GeV. These are the highest pT values for which the cross sections and ratio have been measured.
Fuente: Phys. Rev. Lett. Vol. 114, Num. 19, Pag. 191802 (2015)
Publisher: American Physical Society
Publication date: 01/05/2015
No. of pages: 16
Publication type: Artículo de Revista
DOI: 10.1103/PhysRevLett.114.191802
ISSN: 0031-9007,1079-7114
Spanish project: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01
Publication Url: https://doi.org/10.1103/PhysRevLett.114.191802
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KHACHATRYAN, VLADIMIR
JAVIER ANDRES BROCHERO CIFUENTES
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
GERVASIO GOMEZ GRAMUGLIO
ALBERTO GRAZIANO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
RAFAEL JOSE MARCO DE LUCAS
CELSO MARTINEZ RIVERO
FRANCISCO MATORRAS WEINIG
FRANCISCA JAVIELA MUÑOZ SANCHEZ
JONATAN PIEDRA GOMEZ
MARIA TERESA RODRIGO ANORO
ANA YAIZA RODRIGUEZ MARRERO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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