TY - JOUR

T1 - Spectra of Protons and Subthreshold Pions for Collisions of Heavy Ions Using a Hydrodynamic Approach with a Nonequilibrium Equation of State

AU - D'yachenko, A. T.

AU - Mitropolsky, I. A.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - The nonequilibrium equation of state is studied in the context of the hydrodynamic approach. The compression stage, the expansion stage, and the freeze-out stage of the hot spot formed during the collisions of heavy ions are considered. The energy spectra of protons and subthreshold pions produced in collisions of heavy ions are calculated with inclusion of the nuclear viscosity effects and compared with experimental data for various combinations of colliding nuclei with energies of several tens of MeV per nucleon.

AB - The nonequilibrium equation of state is studied in the context of the hydrodynamic approach. The compression stage, the expansion stage, and the freeze-out stage of the hot spot formed during the collisions of heavy ions are considered. The energy spectra of protons and subthreshold pions produced in collisions of heavy ions are calculated with inclusion of the nuclear viscosity effects and compared with experimental data for various combinations of colliding nuclei with energies of several tens of MeV per nucleon.

KW - heavy ions

KW - hot spot

KW - hydrodynamics

KW - nonequilibrium equation of state

KW - nuclear viscosity

KW - protons

KW - subthreshold pions

UR - http://www.scopus.com/inward/record.url?scp=85082600133&partnerID=8YFLogxK

U2 - 10.1134/S106377881912007X

DO - 10.1134/S106377881912007X

M3 - Article

AN - SCOPUS:85082600133

VL - 82

SP - 1641

EP - 1646

JO - Physics of Atomic Nuclei

JF - Physics of Atomic Nuclei

SN - 1063-7788

IS - 12

ER -