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Title: Importance of initial and final state effects for azimuthal correlations in p + Pb collisions

Abstract

In this work, we investigate the relative importance of initial and final state effects on azimuthal correlations of gluons in low and high multiplicity p+Pb collisions. To achieve this, we couple Yang-Mills dynamics of pre-equilibrium gluon fields (IP-GLASMA) to a perturbative QCD based parton cascade for the final state evolution (BAMPS) on an event-by-event basis. We find that signatures of both the initial state correlations and final state interactions are seen in azimuthal correlation observables, such as v2 {2PC} (pT), their strength depending on the event multiplicity and transverse momentum. Initial state correlations dominate v2 {2PC} (pT) in low multiplicity events for transverse momenta pT > 2 GeV. Lastly, while final state interactions are dominant in high multiplicity events, initial state correlations affect v2 {2PC} (pT) for pT > 2 GeV as well as the pT integrated v2 {2PC}.

Authors:
 [1];  [1];  [2];  [3];  [4]
+ Show Author Affiliations
  1. Johann Wolfgang Goethe-Universität, Frankfurt (Germany). Institut für Theoretische Physik
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Department
  3. Univ. of Washington, Seattle, WA (United States). Department of Physics
  4. Tsinghua University and Collaborative Innovation Center of Quantum Matter, Beijing (China). Department of Physics
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); BNL Program Development
OSTI Identifier:
1431278
Alternate Identifier(s):
OSTI ID: 1410401
Report Number(s):
BNL-203392-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; TRN: US1802770
Grant/Contract Number:  
SC0012704; FG02-97ER41014; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Greif, Moritz, Greiner, Carsten, Schenke, Bjorn, Schlichting, Soren, and Xu, Zhe. Importance of initial and final state effects for azimuthal correlations in p+Pb collisions. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.96.091504.
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Greif, Moritz, Greiner, Carsten, Schenke, Bjorn, Schlichting, Soren, & Xu, Zhe. Importance of initial and final state effects for azimuthal correlations in p+Pb collisions. United States. https://doi.org/10.1103/PhysRevD.96.091504
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Greif, Moritz, Greiner, Carsten, Schenke, Bjorn, Schlichting, Soren, and Xu, Zhe. Mon . "Importance of initial and final state effects for azimuthal correlations in p+Pb collisions". United States. https://doi.org/10.1103/PhysRevD.96.091504. https://www.osti.gov/servlets/purl/1431278.
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@article{osti_1431278,
title = {Importance of initial and final state effects for azimuthal correlations in p+Pb collisions},
author = {Greif, Moritz and Greiner, Carsten and Schenke, Bjorn and Schlichting, Soren and Xu, Zhe},
abstractNote = {In this work, we investigate the relative importance of initial and final state effects on azimuthal correlations of gluons in low and high multiplicity p+Pb collisions. To achieve this, we couple Yang-Mills dynamics of pre-equilibrium gluon fields (IP-GLASMA) to a perturbative QCD based parton cascade for the final state evolution (BAMPS) on an event-by-event basis. We find that signatures of both the initial state correlations and final state interactions are seen in azimuthal correlation observables, such as v2 {2PC} (pT), their strength depending on the event multiplicity and transverse momentum. Initial state correlations dominate v2 {2PC} (pT) in low multiplicity events for transverse momenta pT > 2 GeV. Lastly, while final state interactions are dominant in high multiplicity events, initial state correlations affect v2 {2PC} (pT) for pT > 2 GeV as well as the pT integrated v2 {2PC}.},
doi = {10.1103/PhysRevD.96.091504},
journal = {Physical Review D},
number = 9,
volume = 96,
place = {United States},
year = {Mon Nov 27 00:00:00 EST 2017},
month = {Mon Nov 27 00:00:00 EST 2017}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.96.091504
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Works referenced in this record:

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journal, October 2016

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