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Measurements of jet multiplicity and differential production cross sections of Z + jets events in proton-proton collisions at vs = 7??TeV

Abstract: Measurements of differential cross sections are presented for the production of a Z boson and at least one hadronic jet in proton-proton collisions at vs = 7??TeV, recorded by the CMS detector, using a data sample corresponding to an integrated luminosity of 4.9 fb-1. The jet multiplicity distribution is measured for up to six jets. The differential cross sections are measured as a function of jet transverse momentum and pseudorapidity for the four highest transverse momentum jets. The distribution of the scalar sum of jet transverse momenta is also measured as a function of the jet multiplicity. The measurements are compared with theoretical predictions at leading and next-to-leading order in perturbative QCD.

 Fuente: Phys. Rev. D, Vol. 91, Num. 5, Pag. 052008 (2015)

 Editorial: American Physical Society

 Fecha de publicación: 01/03/2015

 Nº de páginas: 26

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevD.91.052008

 ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

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

 Url de la publicación: https://doi.org/10.1103/PhysRevD.91.052008

Autoría

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