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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 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:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); 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.
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. doi:10.1103/PhysRevD.96.091504.
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. doi:10.1103/PhysRevD.96.091504. https://www.osti.gov/servlets/purl/1431278.
@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 = {2017},
month = {11}
}

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Cited by: 10 works
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Works referenced in this record:

Initial Energy Density of Gluons Produced in Very-High-Energy Nuclear Collisions
journal, May 2000


Azimuthal anisotropies in p + Pb collisions from classical Yang–Mills dynamics
journal, July 2015


Collective flow and hydrodynamics in large and small systems at the LHC
journal, June 2017

  • Song, Huichao; Zhou, You; Gajdošová, Katarína
  • Nuclear Science and Techniques, Vol. 28, Issue 7
  • DOI: 10.1007/s41365-017-0245-4

Collective Flow and Viscosity in Relativistic Heavy-Ion Collisions
journal, October 2013


Isotropization and Hydrodynamization in Weakly Coupled Heavy-Ion Collisions
journal, October 2015


Thermalization of Gluons with Bose-Einstein Condensation
journal, May 2015


The Color Glass Condensate
journal, November 2010


Do nuclear collisions create a locally equilibrated quark–gluon plasma?
journal, January 2017


Initial state and pre-equilibrium effects in small systems
journal, December 2016


Transport rates and momentum isotropization of gluon matter in ultrarelativistic heavy-ion collisions
journal, August 2007


Evidence of Strong Proton Shape Fluctuations from Incoherent Diffraction
journal, July 2016


“Bottom-up” thermalization in heavy ion collisions
journal, March 2001


Hydrodynamic approaches in relativistic heavy ion reactions
journal, January 2016


Universal attractor in a highly occupied non-Abelian plasma
journal, June 2014


Novel collective phenomena in high-energy proton–proton and proton–nucleus collisions
journal, January 2016

  • Dusling, Kevin; Li, Wei; Schenke, Björn
  • International Journal of Modern Physics E, Vol. 25, Issue 01
  • DOI: 10.1142/S0218301316300022

Multiplicity and transverse momentum dependence of two- and four-particle correlations in pPb and PbPb collisions
journal, July 2013


Initial-State Quantum Fluctuations in the Little Bang
journal, October 2016


Non-perturbative computation of double inclusive gluon production in the Glasma
journal, January 2010

  • Lappi, T.; Srednyak, S.; Venugopalan, R.
  • Journal of High Energy Physics, Vol. 2010, Issue 1
  • DOI: 10.1007/JHEP01(2010)066

Azimuthal harmonics of color fields in a high energy nucleus
journal, May 2015


Collectivity in Small Collision Systems: An Initial-State Perspective
journal, January 2016

  • Schlichting, Sören; Tribedy, Prithwish
  • Advances in High Energy Physics, Vol. 2016
  • DOI: 10.1155/2016/8460349

Imprints of fluctuating proton shapes on flow in proton-lead collisions at the LHC
journal, September 2017


Elliptic Flow and Nuclear Modification Factor in Ultrarelativistic Heavy-Ion Collisions within a Partonic Transport Model
journal, March 2015


Effective kinetic theory for high temperature gauge theories
journal, January 2003


Hydrodynamic Modeling of Heavy-Ion Collisions
journal, April 2013

  • Gale, Charles; Jeon, Sangyong; Schenke, BjÖRn
  • International Journal of Modern Physics A, Vol. 28, Issue 11
  • DOI: 10.1142/S0217751X13400113

Initial Gluon Multiplicity in Heavy-Ion Collisions
journal, February 2001


Mass Ordering of Spectra from Fragmentation of Saturated Gluon States in High-Multiplicity Proton-Proton Collisions
journal, October 2016