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)
- 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. https://doi.org/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. https://doi.org/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 = {Thu Jan 25 00:00:00 EST 2018},
month = {Thu Jan 25 00:00:00 EST 2018}
}
https://doi.org/10.1103/PhysRevLett.120.042002
Web of Science
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