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This content will become publicly available on November 27, 2018

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

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 v 2 {2PC} (p T), their strength depending on the event multiplicity and transverse momentum. Initial state correlations dominate v 2 {2PC} (p T) in low multiplicity events for transverse momenta p T > 2 GeV. Lastly, while final state interactions are dominant in high multiplicity events, initial state correlations affect v 2 {2PC} (p T) for p T > 2 GeV as well as the pT integrated v 2 {2PC}.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4]
  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:
Report Number(s):
BNL-203392-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:
SC0012704; FG02-97ER41014; AC02-05CH11231
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)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); BNL Program Development
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1431278
Alternate Identifier(s):
OSTI ID: 1410401