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Title: Phenomenological implications of asymmetric AdS 5 shock wave collision studies for heavy ion physics

Abstract

This paper discusses possible phenomenological implications for p+A and A+A collisions of the results of recent numerical AdS/CFT calculations examining asymmetric collisions of planar shocks. In view of the extreme Lorentz contraction, we model highly relativistic heavy ion collisions (HICs) as a superposition of collisions between many near-independent transverse "pixels" with differing incident longitudinal momenta. It was found that also for asymmetric collisions the hydrodynamization time is in good approximation a proper time, just like for symmetric collisions, depending on the geometric mean of the longitudinally integrated energy densities of the incident projectiles. For realistic collisions with fluctuations in the initial energy densities, these results imply a substantial increase in the hydrodynamization time for highly asymmetric pixels. However, even in this case the local hydrodynamization time still is significantly smaller than perturbative results for the thermalization time.

Authors:
; ; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1632915
Alternate Identifier(s):
OSTI ID: 1608955; OSTI ID: 1661368; OSTI ID: 1774165
Grant/Contract Number:  
FG02-05ER41367; SC0011637
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; heavy ion collision; quark-gluon plasma; AdS/CFT; relativistic heavy-ion collisions; strong interaction; heavy ion physics

Citation Formats

Müller, Berndt, Rabenstein, Andreas, Schäfer, Andreas, Waeber, Sebastian, and Yaffe, Laurence G. Phenomenological implications of asymmetric AdS 5 shock wave collision studies for heavy ion physics. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.101.076008.
Müller, Berndt, Rabenstein, Andreas, Schäfer, Andreas, Waeber, Sebastian, & Yaffe, Laurence G. Phenomenological implications of asymmetric AdS 5 shock wave collision studies for heavy ion physics. United States. doi:https://doi.org/10.1103/PhysRevD.101.076008
Müller, Berndt, Rabenstein, Andreas, Schäfer, Andreas, Waeber, Sebastian, and Yaffe, Laurence G. Wed . "Phenomenological implications of asymmetric AdS 5 shock wave collision studies for heavy ion physics". United States. doi:https://doi.org/10.1103/PhysRevD.101.076008.
@article{osti_1632915,
title = {Phenomenological implications of asymmetric AdS 5 shock wave collision studies for heavy ion physics},
author = {Müller, Berndt and Rabenstein, Andreas and Schäfer, Andreas and Waeber, Sebastian and Yaffe, Laurence G.},
abstractNote = {This paper discusses possible phenomenological implications for p+A and A+A collisions of the results of recent numerical AdS/CFT calculations examining asymmetric collisions of planar shocks. In view of the extreme Lorentz contraction, we model highly relativistic heavy ion collisions (HICs) as a superposition of collisions between many near-independent transverse "pixels" with differing incident longitudinal momenta. It was found that also for asymmetric collisions the hydrodynamization time is in good approximation a proper time, just like for symmetric collisions, depending on the geometric mean of the longitudinally integrated energy densities of the incident projectiles. For realistic collisions with fluctuations in the initial energy densities, these results imply a substantial increase in the hydrodynamization time for highly asymmetric pixels. However, even in this case the local hydrodynamization time still is significantly smaller than perturbative results for the thermalization time.},
doi = {10.1103/PhysRevD.101.076008},
journal = {Physical Review D},
number = 7,
volume = 101,
place = {United States},
year = {2020},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: https://doi.org/10.1103/PhysRevD.101.076008

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