Particlization in fluid dynamical simulations of heavy-ion collisions: The IS3D module

McNelis, Mike; Everett, Derek; Heinz, Ulrich

doi:10.1016/j.cpc.2020.107604

Particlization in fluid dynamical simulations of heavy-ion collisions: The IS3D module

Journal Article · Wed Sep 09 00:00:00 EDT 2020 · Computer Physics Communications

DOI:https://doi.org/10.1016/j.cpc.2020.107604· OSTI ID:1770692

McNelis, Mike ^[1]; Everett, Derek ^[2]; ^[3]

The Ohio State Univ., Columbus, OH (United States); The Ohio State University
The Ohio State Univ., Columbus, OH (United States)
The Ohio State Univ., Columbus, OH (United States); J. W. Goethe Univ., Frankfurt am Main (Germany)

The IS3D particlization module simulates the emission of hadrons from heavy-ion collisions via Monte-Carlo sampling of the Cooper–Frye formula which converts fluid dynamical information into local phase-space distributions for hadrons. The code package includes multiple choices for the non-equilibrium correction to these distribution functions: the 14-moment approximation, first-order Chapman–Enskog expansion, and two types of modified equilibrium distributions. This makes it possible to explore to what extent heavy-ion experimental data are sensitive to different choices for δf_n, presently the main source of theoretical uncertainty in the particlization stage. Here, we validate our particle sampler with a high degree of precision by generating several million hadron emission events from a longitudinally boost-invariant hypersurface and comparing the event-averaged particle spectra and space–time distributions to the Cooper–Frye formula.

View Accepted Manuscript (DOE)

Research Organization:: The Ohio State Univ., Columbus, OH (United States)

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

Grant/Contract Number:: SC0004286

OSTI ID:: 1770692

Alternate ID(s):: OSTI ID: 1775676

Journal Information:: Computer Physics Communications, Journal Name: Computer Physics Communications Vol. 258; ISSN 0010-4655

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Heavy-ion collisions
IS3D
Monte Carlo simulation
Parallel computing
Quark–gluon plasma
Relativistic fluid dynamics

Particlization in fluid dynamical simulations of heavy-ion collisions: The iS3D module McNelis, Mike https://doi.org/10.17632/n2cxrjgkwr The current record is supplemented by this dataset	dataset	January 2020
Particlization in fluid dynamical simulations of heavy-ion collisions: The iS3D module McNelis, Mike https://doi.org/10.17632/n2cxrjgkwr.1 The current record is supplemented by this dataset	dataset	January 2020

Particlization in fluid dynamical simulations of heavy-ion collisions: The IS3D module

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