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Multiparticle correlation studies in pPb collisions at ?sNN=8.16 TeV

Abstract: The second- and third-order azimuthal anisotropy Fourier harmonics of charged particles produced in pPb collisions, at ?sNN=8.16TeV, are studied over a wide range of event multiplicities. Multiparticle correlations are used to isolate global properties stemming from the collision overlap geometry. The second-order ?elliptic? harmonic moment is obtained with high precision through four-, six-, and eight-particle correlations and, for the first time, the third-order ?triangular? harmonic moment is studied using four-particle correlations. A sample of peripheral PbPb collisions at ?sNN=5.02TeV that covers a similar range of event multiplicities as the pPb results is also analyzed. Model calculations of initial-state fluctuations in pPb and PbPb collisions can be directly compared to the high-precision experimental results. This work provides new insight into the fluctuation-driven origin of the v3 coefficients in pPb and PbPb collisions, and into the dominating overall collision geometry in PbPb collisions at the earliest stages of heavy ion interactions.

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

 Fuente: Phys. Rev. C 101, 014912 (2020)

Editorial: American Physical Society

 Fecha de publicación: 01/01/2020

Nº de páginas: 17

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevC.101.014912

ISSN: 0556-2813,1089-490X,2469-9985,2469-9993

Url de la publicación: https://doi.org/10.1103/PhysRevC.101.014912