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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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arxiv 1807.00825 v1 pith:NPGBZOE4 submitted 2018-07-02 hep-ph nucl-exnucl-th

Mark Mace , Vladimir V. Skokov , Prithwish Tribedy , Raju Venugopalan This is my paper · ORCID
classification hep-phnucl-exnucl-th
keywords azimuthalcollisionsdataanisotropyatlascollaborationcolorcomparisons
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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} ~ N_{ch}^0 and v^2_{2n+1} ~ 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 [arXiv:1805.09342] to data from the PHENIX collaboration on small system collisions at RHIC.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Hybrid Color Glass Condensate and hydrodynamic description of the Relativistic Heavy Ion Collider small system scan

    nucl-th 2019-08 conditional novelty 6.0 of 10

    A hybrid IP-Glasma and hydrodynamics calculation finds that final-state interactions are required for the RHIC small-system flow data, while the initial CGC momentum anisotropy contributes visibly at low multiplicity.

  2. Elliptic and triangular flows in dAu collisions at 200 GeV in the fusing color string model

    hep-ph 2019-09 conditional novelty 4.0 of 10

    The fusing color string model, calibrated to Pb-Pb with one quenching coefficient, reproduces the d-Au over p-Au ordering of v2 at 200 GeV but predicts too much triangular flow.

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