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Title: Multiparticle Collectivity from Initial State Correlations in High Energy Proton-Nucleus Collisions

Abstract

Qualitative features of multiparticle correlations in light-heavy ion (p +A) collisions at RHIC and LHC are reproduced in a simple initial state model of partons in the projectile coherently scattering off localized domains of color charge in the heavy nuclear target. These include i) the ordering of the magnitudes of the azimuthal angle nth Fourier harmonics of two-particle correlations vn{2}, ii) the energy and transverse momentum dependence of the four-particle Fourier harmonic v2{4}, and iii) the energy dependence of four-particle symmetric cumulants measuring correlations between different Fourier harmonics. Similar patterns are seen in an Abelian version of the model, where we observe v2{2} > v2{4} ≈ v2{6} ≈ v2{8} of two, four, six, and eight particle correlations. While such patterns are often interpreted as signatures of collectivity arising from hydrodynamic flow, our results provide an alternative description of the multiparticle correlations seen in p + A collisions.

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1418086
Alternate Identifier(s):
OSTI ID: 1430889
Report Number(s):
BNL-203403-2018-JAAM
Journal ID: ISSN 0031-9007; PRLTAO; 042002
Grant/Contract Number:  
SC0012704; FG02-88ER40388; AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 120 Journal Issue: 4; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Dusling, Kevin, Mace, Mark, and Venugopalan, Raju. Multiparticle Collectivity from Initial State Correlations in High Energy Proton-Nucleus Collisions. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.042002.
Dusling, Kevin, Mace, Mark, & Venugopalan, Raju. Multiparticle Collectivity from Initial State Correlations in High Energy Proton-Nucleus Collisions. United States. doi:10.1103/PhysRevLett.120.042002.
Dusling, Kevin, Mace, Mark, and Venugopalan, Raju. Thu . "Multiparticle Collectivity from Initial State Correlations in High Energy Proton-Nucleus Collisions". United States. doi:10.1103/PhysRevLett.120.042002.
@article{osti_1418086,
title = {Multiparticle Collectivity from Initial State Correlations in High Energy Proton-Nucleus Collisions},
author = {Dusling, Kevin and Mace, Mark and Venugopalan, Raju},
abstractNote = {Qualitative features of multiparticle correlations in light-heavy ion (p +A) collisions at RHIC and LHC are reproduced in a simple initial state model of partons in the projectile coherently scattering off localized domains of color charge in the heavy nuclear target. These include i) the ordering of the magnitudes of the azimuthal angle nth Fourier harmonics of two-particle correlations vn{2}, ii) the energy and transverse momentum dependence of the four-particle Fourier harmonic v2{4}, and iii) the energy dependence of four-particle symmetric cumulants measuring correlations between different Fourier harmonics. Similar patterns are seen in an Abelian version of the model, where we observe v2{2} > v2{4} ≈ v2{6} ≈ v2{8} of two, four, six, and eight particle correlations. While such patterns are often interpreted as signatures of collectivity arising from hydrodynamic flow, our results provide an alternative description of the multiparticle correlations seen in p + A collisions.},
doi = {10.1103/PhysRevLett.120.042002},
journal = {Physical Review Letters},
number = 4,
volume = 120,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevLett.120.042002

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Cited by: 16 works
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    Works referencing / citing this record:

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