Dynamical initial-state model for relativistic heavy-ion collisions

Shen, Chun; Schenke, Bjorn

doi:10.1103/PhysRevC.97.024907

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

Journal Article · 15 February 2018 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.97.024907 · OSTI ID:1439300

Shen, Chun ^[1]; Schenke, Bjorn ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States)

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.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0012704; AC02-05CH11231

OSTI ID:: 1439300

Alternate ID(s):: OSTI ID: 1421296

Report Number(s):: BNL-205705-2018-JAAM; PRVCAN; TRN: US1900597

Journal Information:: Physical Review C, Vol. 97, Issue 2; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 93 works

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