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Title: Systematics of azimuthal anisotropy harmonics in proton–nucleus collisions at the LHC from the Color Glass Condensate

Abstract

Here, simple power counting arguments in the dilute-dense framework of the Color Glass Condensate (CGC) Effective Field Theory predict that even and odd azimuthal anisotropy harmonics of two-particle correlations in proton-nucleus collisions at the LHC will respectively satisfy v 2 2n {2} ∝ N 0 ch and v 2 2n+1 {2} ∝ N ch, where N ch denotes the number of charged particles. We show that these expectations are borne out qualitatively, and even quantitatively, within systematic uncertainties, for v 2 and v 4 in comparisons with data from the ATLAS collaboration. We also observe that ATLAS data for the v 3 azimuthal harmonic are in excellent agreement with our qualitative expectation; quantitative comparisons are numerically challenging at present. The lessons from this study fully complement those gained by the recent comparison of the CGC dilute-dense framework [1] to data from the PHENIX collaboration on small system collisions at RHIC.

Authors:
; ORCiD logo; ORCiD logo;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1481223
Alternate Identifier(s):
OSTI ID: 1493574
Report Number(s):
BNL-211242-2019-JAAM
Journal ID: ISSN 0370-2693; S0370269318308438; PII: S0370269318308438
Grant/Contract Number:  
SC0012704; FG02-88ER40388; AC02-05CH11231
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 788 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Mace, Mark, Skokov, Vladimir V., Tribedy, Prithwish, and Venugopalan, Raju. Systematics of azimuthal anisotropy harmonics in proton–nucleus collisions at the LHC from the Color Glass Condensate. Netherlands: N. p., 2019. Web. doi:10.1016/j.physletb.2018.09.064.
Mace, Mark, Skokov, Vladimir V., Tribedy, Prithwish, & Venugopalan, Raju. Systematics of azimuthal anisotropy harmonics in proton–nucleus collisions at the LHC from the Color Glass Condensate. Netherlands. https://doi.org/10.1016/j.physletb.2018.09.064
Mace, Mark, Skokov, Vladimir V., Tribedy, Prithwish, and Venugopalan, Raju. Tue . "Systematics of azimuthal anisotropy harmonics in proton–nucleus collisions at the LHC from the Color Glass Condensate". Netherlands. https://doi.org/10.1016/j.physletb.2018.09.064.
@article{osti_1481223,
title = {Systematics of azimuthal anisotropy harmonics in proton–nucleus collisions at the LHC from the Color Glass Condensate},
author = {Mace, Mark and Skokov, Vladimir V. and Tribedy, Prithwish and Venugopalan, Raju},
abstractNote = {Here, simple power counting arguments in the dilute-dense framework of the Color Glass Condensate (CGC) Effective Field Theory predict that even and odd azimuthal anisotropy harmonics of two-particle correlations in proton-nucleus collisions at the LHC will respectively satisfy v22n {2} ∝ N0ch and v22n+1 {2} ∝ Nch, where Nch denotes the number of charged particles. We show that these expectations are borne out qualitatively, and even quantitatively, within systematic uncertainties, for v2 and v4 in comparisons with data from the ATLAS collaboration. We also observe that ATLAS data for the v3 azimuthal harmonic are in excellent agreement with our qualitative expectation; quantitative comparisons are numerically challenging at present. The lessons from this study fully complement those gained by the recent comparison of the CGC dilute-dense framework [1] to data from the PHENIX collaboration on small system collisions at RHIC.},
doi = {10.1016/j.physletb.2018.09.064},
url = {https://www.osti.gov/biblio/1481223}, journal = {Physics Letters B},
issn = {0370-2693},
number = C,
volume = 788,
place = {Netherlands},
year = {2019},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.1016/j.physletb.2018.09.064

Citation Metrics:
Cited by: 14 works
Citation information provided by
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Figures / Tables:

Fig. 1 Fig. 1: Diagrammatic representation of the leading order contributions to the a) P-even and b) P-odd parts of the inclusive gluon production cross section; the straight vertical lines represent multiple scattering in the gluon “shockwave” field of the target. The curved vertical line denotes the cut separating the amplitude frommore » the complex conjugate amplitude.« less

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Works referencing / citing this record:

Non-eikonal corrections to multi-particle production in the color glass condensate
journal, July 2019


Non-eikonal corrections to multi-particle production in the color glass condensate
journal, July 2019


Elliptic Flow of Heavy Quarkonia in p A Collisions
journal, May 2019


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.