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Measurement of J/? and ?(2S) Prompt Double-Differential Cross Sections in pp Collisions at vs = 7??TeV

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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Phys. Rev. Lett. Vol. 114, Num. 19, Pag. 191802 (2015)

Editorial: American Physical Society

 Fecha de publicación: 01/05/2015

Nº de páginas: 16

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.114.191802

ISSN: 0031-9007,1079-7114

Proyecto español: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01

Url de la publicación: https://doi.org/10.1103/PhysRevLett.114.191802

Autores/as

KHACHATRYAN, VLADIMIR

JAVIER ANDRES BROCHERO CIFUENTES

MARCOS FERNANDEZ GARCIA

ALBERTO GRAZIANO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO