Systematics of azimuthal anisotropy harmonics in proton–nucleus collisions at the LHC from the Color Glass Condensate.
In: Physics Letters B, Jg. 788 (2019-01-10), S. 161-165
Online
academicJournal
Zugriff:
Abstract 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 n 2 { 2 } ∝ N ch 0 and v 2 n + 1 2 { 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. [ABSTRACT FROM AUTHOR]
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Systematics of azimuthal anisotropy harmonics in proton–nucleus collisions at the LHC from the Color Glass Condensate.
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Autor/in / Beteiligte Person: | Mace, Mark ; Skokov, Vladimir V. ; Tribedy, Prithwish ; Venugopalan, Raju |
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Zeitschrift: | Physics Letters B, Jg. 788 (2019-01-10), S. 161-165 |
Veröffentlichung: | 2019 |
Medientyp: | academicJournal |
ISSN: | 0370-2693 (print) |
DOI: | 10.1016/j.physletb.2018.09.064 |
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