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Title: Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions

Abstract

We initiate a holographic study of coupling-dependent heavy ion collisions by analyzing, for the first time, the effects of leading-order, inverse coupling constant corrections. In the dual description, this amounts to colliding gravitational shock waves in a theory with curvature-squared terms. Here, we find that, at intermediate coupling, nuclei experience less stopping and have more energy deposited near the light cone. When the decreased coupling results in an 80% larger shear viscosity, the time at which hydrodynamics becomes a good description of the plasma created from high energy collisions increases by 25%. The hydrodynamic phase of the evolution starts with a wider rapidity profile and smaller entropy.

Authors:
 [1];  [2]
  1. Leiden Univ. (Netherlands). Inst.-Lorentz for Theoretical Physics
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE; Netherlands Organization for Scientific Research (NWO)
OSTI Identifier:
1505743
Alternate Identifier(s):
OSTI ID: 1368624
Grant/Contract Number:  
SC0011090
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 1; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Grozdanov, Sašo, and van der Schee, Wilke. Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions. United States: N. p., 2017. Web. doi:10.1103/physrevlett.119.011601.
Grozdanov, Sašo, & van der Schee, Wilke. Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions. United States. doi:10.1103/physrevlett.119.011601.
Grozdanov, Sašo, and van der Schee, Wilke. Thu . "Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions". United States. doi:10.1103/physrevlett.119.011601. https://www.osti.gov/servlets/purl/1505743.
@article{osti_1505743,
title = {Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions},
author = {Grozdanov, Sašo and van der Schee, Wilke},
abstractNote = {We initiate a holographic study of coupling-dependent heavy ion collisions by analyzing, for the first time, the effects of leading-order, inverse coupling constant corrections. In the dual description, this amounts to colliding gravitational shock waves in a theory with curvature-squared terms. Here, we find that, at intermediate coupling, nuclei experience less stopping and have more energy deposited near the light cone. When the decreased coupling results in an 80% larger shear viscosity, the time at which hydrodynamics becomes a good description of the plasma created from high energy collisions increases by 25%. The hydrodynamic phase of the evolution starts with a wider rapidity profile and smaller entropy.},
doi = {10.1103/physrevlett.119.011601},
journal = {Physical Review Letters},
number = 1,
volume = 119,
place = {United States},
year = {2017},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 1 work
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Figures / Tables:

FIG. 1 FIG. 1: Energy density along the longitudinal coordinate z at different times for narrow (left) and wide shock collisions (right). We present results for infinitely coupled (dashed lines), first-order corrected (dotted lines), and second-order corrected (solid lines) collisions at λGB = −0.2. At intermediate coupling, we observe increased energy densitymore » near the light cones (peaks), which signals less stopping. In the plasma (between peaks), the energy density is flatter, which is caused by a smaller longitudinal pressure due to the larger viscosity.« less

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