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Title: Dynamical initial-state model for relativistic heavy-ion collisions

Abstract

We present a fully three-dimensional model providing initial conditions for energy and net-baryon density distributions in heavy ion collisions at arbitrary collision energy. The model includes the dynamical deceleration of participating nucleons or valence quarks, depending on the implementation. The duration of the deceleration continues until the string spanned between colliding participants is assumed to thermalize, which is either after a fixed proper time, or a uctuating time depending on sampled final rapidities. Energy is deposited in space-time along the string, which in general will span a range of space-time rapidities and proper times. We study various observables obtained directly from the initial state model, including net-baryon rapidity distributions, 2-particle rapidity correlations, as well as the rapidity decorrelation of the transverse geometry. Their dependence on the model implementation and parameter values is investigated. Here, we also present the implementation of the model with 3+1 dimensional hydrodynamics, which involves the addition of source terms that deposit energy and net-baryon densities produced by the initial state model at proper times greater than the initial time for the hydrodynamic simulation.

Authors:
 [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1439300
Alternate Identifier(s):
OSTI ID: 1421296
Report Number(s):
BNL-205705-2018-JAAM
Journal ID: ISSN 2469-9985; PRVCAN; TRN: US1900597
Grant/Contract Number:  
SC0012704; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 97; Journal Issue: 2; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Initial State

Citation Formats

Shen, Chun, and Schenke, Bjorn. Dynamical initial-state model for relativistic heavy-ion collisions. United States: N. p., 2018. Web. doi:10.1103/PhysRevC.97.024907.
Shen, Chun, & Schenke, Bjorn. Dynamical initial-state model for relativistic heavy-ion collisions. United States. doi:10.1103/PhysRevC.97.024907.
Shen, Chun, and Schenke, Bjorn. Thu . "Dynamical initial-state model for relativistic heavy-ion collisions". United States. doi:10.1103/PhysRevC.97.024907. https://www.osti.gov/servlets/purl/1439300.
@article{osti_1439300,
title = {Dynamical initial-state model for relativistic heavy-ion collisions},
author = {Shen, Chun and Schenke, Bjorn},
abstractNote = {We present a fully three-dimensional model providing initial conditions for energy and net-baryon density distributions in heavy ion collisions at arbitrary collision energy. The model includes the dynamical deceleration of participating nucleons or valence quarks, depending on the implementation. The duration of the deceleration continues until the string spanned between colliding participants is assumed to thermalize, which is either after a fixed proper time, or a uctuating time depending on sampled final rapidities. Energy is deposited in space-time along the string, which in general will span a range of space-time rapidities and proper times. We study various observables obtained directly from the initial state model, including net-baryon rapidity distributions, 2-particle rapidity correlations, as well as the rapidity decorrelation of the transverse geometry. Their dependence on the model implementation and parameter values is investigated. Here, we also present the implementation of the model with 3+1 dimensional hydrodynamics, which involves the addition of source terms that deposit energy and net-baryon densities produced by the initial state model at proper times greater than the initial time for the hydrodynamic simulation.},
doi = {10.1103/PhysRevC.97.024907},
journal = {Physical Review C},
number = 2,
volume = 97,
place = {United States},
year = {2018},
month = {2}
}

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Free Publicly Available Full Text
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Cited by: 20 works
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Figures / Tables:

FIG. 1. FIG. 1.: Nucleon positions as a function of one transverse (x) and the longitudinal direction (z) for to different collision energies.

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