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Thermal and transport properties of hot nuclear matter formed in central $^{129}$Xe + $^{119}$Sn collisions at the Fermi energy are investigated using the isospin-dependent quantum molecular dynamical (IQMD) model. Temperature ($T$),…

Nuclear Theory · Physics 2018-03-22 H. L. Liu , Y. G. Ma , A. Bonasera , X. G. Deng , O. Lopez , M. Veselský

The shear viscosity of hot nuclear matter is investigated by using the mean free path method within the framework of IQMD model. Finite size nuclear sources at different density and temperature are initialized based on the Fermi-Dirac…

Nuclear Theory · Physics 2014-04-29 D. Q. Fang , Y. G. Ma , C. L. Zhou

We analyze the time evolution of the kinetic properties of nuclear matter produced in heavy-ion collisions at Fermi energies. The collision system is simulated using Constrained Molecular Dynamics (CoMD) transport calculations whose output…

Nuclear Theory · Physics 2023-11-01 Thomas Onyango , Aldo Bonasera , Ralf Rapp

Equilibration of highly excited baryon-rich matter is studied within the microscopic model calculations in A+A collisions at energies of BES, FAIR and NICA. It is shown that the system evolution from the very beginning of the collision can…

Nuclear Theory · Physics 2021-02-03 E. Zabrodin , L. Bravina , M. Teslyk , O. Vitiuk

Thermalization process of nuclear matter in central fireball region of heavy-ion collisions is investigated by employing an extension model of Boltzmann-Uehling-Uhlenbeck, namely the Van der Waals Boltzmann-Uehling-Uhlenbeck (VdWBUU) model.…

Nuclear Theory · Physics 2017-06-06 X. G. Deng , Y. G. Ma , M. Veselsky

We propose a model for isotropization and corresponding thermalization in a nucleon system created in the collision of two nuclei. The model is based on the assumption: during the fireball evolution, two-particle elastic and inelastic…

Nuclear Theory · Physics 2008-11-26 Dmitry Anchishkin , Stanislav Yezhov

We propose a new strategy for the experimental search of the QCD phase transition in heavy ion collisions: One may tune collision energy around the point where the lifetime of the fireball is expected to be longest. We demonstrate that the…

High Energy Physics - Phenomenology · Physics 2009-10-28 C. M. Hung , E. V. Shuryak

We analyze the thermodynamical state of nuclear matter in transport descriptions of heavy ion reactions. We determine thermodynamical variables from an analysis of local momentum space distributions and compare to blast model parameters…

Nuclear Theory · Physics 2017-08-23 T. Gaitanos , H. H. Wolter , C. Fuchs

We investigate the thermodynamic and transport properties in hot nuclear matter accounting for the medium modifications of the nucleons within a chiral SU(3) model including effects from isospin asymmetry. Using the relaxation time…

Nuclear Theory · Physics 2025-12-05 Amruta Mishra , J. Schaffner-Bielich

Recent progress of the quantum molecular dynamics model for describing the dynamics of heavy-ion collisions is viewed, in particular the nuclear fragmentation, isospin physics, particle production and in-medium effect, hadron-induced…

Nuclear Theory · Physics 2018-03-01 Zhao-Qing Feng

Time evolution of shear viscosity $\eta$, entropy density $s$, and their ratio $\eta / s$ in the central area of central gold-gold collisions at NICA energy range is studied within the UrQMD transport model. The extracted values of energy…

Nuclear Theory · Physics 2020-01-15 M. Teslyk , L. Bravina , O. Panova , O. Vitiuk , E. Zabrodin

We construct the density of states for quarks and gluons using the `Thomas - Fermi model' for atoms and the `Bethe model' for nucleons as templates. With parameters to take care of the plasma (hydrodynamical) features of the QGP with a…

High Energy Physics - Phenomenology · Physics 2009-11-10 R. Ramanathan , Y. K. Mathur , K. K. Gupta , Agam K. Jha

In the Beam Energy Scan phase II (BES-II) experiments at RHIC STAR, the quark-gluon plasma (QGP) produced with changing collision energies may probe different regions of the QCD phase diagram. Correspondingly, studying the transport…

High Energy Physics - Phenomenology · Physics 2025-12-01 Wei-be He , Guo-yun Shao , Chong-long Xie , Ren-xin Xu

The transport property of cold and dense nucleon matter is important for nuclear physics but is relatively less studied than that at finite temperatures. In this paper, we present a primary study of bulk and shear viscosities in the limit…

Nuclear Theory · Physics 2025-04-09 Jianing Li , Weiyao Ke

We report measurements of in-plane electrical and thermal transport properties in the limit $T \rightarrow 0$ near the unconventional quantum critical point in the heavy-fermion metal $\beta$-YbAlB$_4$. The high Kondo temperature $T_K$…

Strongly Correlated Electrons · Physics 2015-07-29 M. L. Sutherland , E. C. T. O'Farrell , W. H. Toews , J. Dunn , K. Kuga , S. Nakatsuji , Y. Machida , K. Izawa , R. W. Hill

The dynamical description of correlated nuclear motion is based on a set of coupled equations of motion for the one-body density matrix $\rho (11';t)$ and the two-body correlation function $c_2(12,1'2';t)$, which is obtained from the…

Nuclear Theory · Physics 2009-02-23 Hong-Gang Luo , W. Cassing , Shun-Jin Wang

Thermal models have proven to be an useful and simple tool used to make theoretical predictions and data analysis in relativistic and ultra-relativistic heavy ion collisions. A new version of these models is presented here, incorporating a…

Shear viscosity $\eta$ is calculated for the nuclear matter described as a system of interacting nucleons with the van der Waals (VDW) equation of state. The Boltzmann-Vlasov kinetic equation is solved in terms of the plane waves of the…

Nuclear Theory · Physics 2016-11-30 A. G. Magner , M. I. Gorenstein , U. V. Grygoriev , V. A. Plujko

The influence of spatial dimensionality and particle-antiparticle pair production on the thermodynamic properties of the relativistic Fermi gas, at finite chemical potential, is studied. Resembling a kind of phase transition, qualitatively…

Statistical Mechanics · Physics 2014-07-29 Francisco J. Sevilla , Omar Piña

Quark-Gluon plasmas produced in relativistic heavy-ion collisions quickly expand and cool, entering a phase consisting of multiple interacting hadronic resonances just below the QCD deconfinement temperature, $T\sim 155$ MeV. Numerical…

Nuclear Theory · Physics 2017-02-08 Scott Pratt , Alexander Baez , Jane Kim
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