2019/06/30 by Lipei Du, Ulrich Heinz · 3 citations
Physics and Astronomy · #Baryon #Baryon number #Classical mechanics #Cosmology and Gravitation Theories #Diffusion #Dissipative system #High-Energy Particle Collisions Research #Nucleon #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Statistical physics #hep-ph #nucl-ex #nucl-th #physics.comp-ph
paper · pdf · doi:10.1016/j.cpc.2019.107090
published as Comput.Phys.Commun. 251 (2020) 107090 · 62 pages, 8 figures; small changes, accepted version
openalex publication_date 2019/12/04 · arxiv created 2019/12/08 · arxiv updated 2020/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Heavy-ion collisions at center-of-mass energies between 1 and 100 GeV/nucleon are essential to understand the phase diagram of QCD and search for its critical point. At these energies the net baryon density of the system can be high, and simulating its evolution becomes an indispensable part of theoretical modeling. We here present the (3+1)-dimensional diffusive relativistic hydrodynamic code BEShydro which solves the equations of motion of second-order Denicol-Niemi-Molnar-Rischke (DNMR) theory, including bulk and shear viscous currents and baryon diffusion currents. BEShydro features a modular structure that allows to easily turn on and off baryon evolution and different dissipative effects and thus to study their physical effects on the dynamical evolution individually. An extensive set of test protocols for the code, including several novel tests of the precision of baryon transport that can also be used to test other such codes, is documented here and supplied as a permanent part of the code package.