Journal
PHYSICAL REVIEW C
Volume 98, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.98.024909
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Funding
- JSPS [JP15K05079, JP15K05098, JP17K05448, JP17H02900, JP26220707, JP17K05438, JP17K05442]
- Polish National Science Center NCN under Maestro [DEC-2013/10/A/ST2/00106]
- RIKEN iTHES project
- RIKEN iTHEMS program
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We develop a new dynamical model for high-energy heavy-ion collisions in the beam energy region of the highest net-baryon densities on the basis of nonequilibrium microscopic transport model JAM and macroscopic (3 + 1)-dimensional hydrodynamics by utilizing a dynamical initialization method. In this model, dynamical fluidization of a system is controlled by the source terms of the hydrodynamic fields. In addition, time-dependent core-corona separation of hot regions is implemented. We show that our new model describes multiplicities and mean transverse mass in heavy-ion collisions within a beam-energy region of 3 < root s(NN) < 30 GeV. Good agreement of the beam-energy dependence of the K+/pi(+) ratio is obtained, which is explained by the fact that a part of the system is not thermalized in our core-corona approach.
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