Jet properties in PbPb and pp collisions at √sNN = 5.02 TeV

• Autor(a) principal: Sirunyan, A. M.
• Data de Publicação: 2018
• Outros Autores: Silveira, Gustavo Gil da, CMS Collaboration
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/179642
• topic: Aceleradores de partículas; Plasma de quarks e gluons; Colisao de ions pesados; Heavy Ion Experiments; Heavy-ion collision; Jet physics; Quark gluon plasma

Abstract: Modi cations of the properties of jets in PbPb collisions, relative to those in pp collisions, are studied at a nucleon-nucleon center-of-mass energy of p sNN = 5:02TeV via correlations of charged particles with the jet axis in relative pseudorapidity ( ), relative azimuth ( ), and relative angular distance from the jet axis r = p ( )2 + ( )2. This analysis uses data collected with the CMS detector at the LHC, corresponding to integrated luminosities of 404 b1 and 27.4 pb1 for PbPb and pp collisions, respectively. Charged particle number densities, jet fragmentation functions, and jet shapes are presented as a function of PbPb collision centrality and charged-particle track transverse momentum, providing a di erential description of jet modi cations due to interactions with the quarkgluon plasma.