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Abstract: Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02TeV are studied as a function of the pseudorapidity separation (??) of the particle pair at small relative azimuthal angle (|??|/3). The correlations are decomposed into a jet component that dominates the short-range correlations (|??|<1), and a component that persists at large ?? and may originate from collective behavior of the produced system. The events are classified in terms of the multiplicity of the produced particles. Finite azimuthal anisotropies are observed in high-multiplicity events. The second and third Fourier components of the particle-pair azimuthal correlations, V2 and V3, are extracted after subtraction of the jet component. The single-particle anisotropy parameters v2 and v3 are normalized by their laboratory frame midrapidity value and are studied as a function of ?c.m.. The normalized v2 distribution is found to be asymmetric about ?c.m.=0, with smaller values observed at forward pseudorapidity, corresponding to the direction of the proton beam, while no significant pseudorapidity dependence is observed for the normalized v3 distribution within the statistical uncertainties.
Fuente: Phys. Rev. C, Vol. 96, Num. 1, Pag. 014915 (2017)
Editorial: American Physical Society
Fecha de publicación: 01/07/2017
Nº de páginas: 21
Tipo de publicación: Artículo de Revista
DOI: 10.1103/PhysRevC.96.014915
ISSN: 0556-2813,1089-490X,2469-9985,2469-9993
Url de la publicación: https://doi.org/10.1103/PhysRevC.96.014915
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KHACHATRYAN, VLADIMIR
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
JUAN RAMON CASTIÑEIRAS DE SAA
PABLO DE CASTRO MANZANO
MARCOS FERNANDEZ GARCIA
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
RAFAEL JOSE MARCO DE LUCAS
CELSO MARTINEZ RIVERO
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
MARIA TERESA RODRIGO ANORO
ANA YAIZA RODRIGUEZ MARRERO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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