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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2025-08-20 22:57 |
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Conference: Bucharest University Faculty of Physics 2025 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
Equation of state of the nuclear matter in relativistic nuclear collisions.
Phenomenological and experimental aspects
Authors:
Alexandru JIPA, Oana RISTEA, Marius CĂLIN, Nicolae George ȚUȚURAȘ, Tiberiu EȘANU (1), Dan ARGINTARU (2), Cătălin RISTEA (3), Ionel LAZANU, Diana DEARĂ, Livia ILIE
*
Affiliation:
1 IFIN-HH
2 Maritime University Constanta
3 ISS
E-mail
alexandru.jipa@unibuc.ro
Keywords:
relativistic nuclear collisions, nuclear matter, equation of state, phases, phenomenology, experiments
Abstract:
The study of the dynamics of the nucleus-nucleus collisions at high energies involves searches for the equation of state (EoS) of nuclear matter formed in the overlapping region of the colliding nuclei. The necessary information must include fundamental properties of the very dense and hot nuclear matter from the participant region, as well as possible influences of the spectator regions.
Generally, information on the equation of state can be obtained in the frame of a specific model connecting interesting physical quantities on the terms of this equation. An equation of state for nuclear matter in different density and temperature conditions could involve nuclear systems in different equilibrium states and, therefore, a large diversity of hypotheses is necessary. Consequently, in the present work we will present a synthesis of the basic assumptions and bases for specific equations of state.
After such a presentation, we will discuss some interesting experimental results, with special attention awarded to own results obtained in the frame of different international collaborations. Taking into account that we participate in the CBM (Compressed Baryon Matter) Experiment from the Facility for Antiproton and Ion Research (FAIR), GSI Darmstadt, we will present some simulations and the analysis of the specific physical quantities interesting the equation of state. Some comparisons among the simulation results for symmetric and asymmetric collisions at FAIR-GSI energies will be presented, too.
Recent experimental information on the gravitational waves with possible origin into an ensemble of neutron stars increased significantly the interest for the equation of state of nuclear matter.
There is the hope that the understanding on the equation of state for the nuclear matter obtained in relativistic and ultrarelativistic nuclear collisions presenting similar conditions with those from neutron stars ensembles will help us in the understanding of some astrophysical events, confirming that the Relativistic Nuclear Physics is a bridge among different fields of the Nuclear and Particle Physics.
Acknowledgement:
Many thanks to Romanian-FAIR Programme for the financial support in the last decade
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