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Hard processes in nucleus-nucleus interactions at relativistic energies are reviewed with emphasis on recent PHENIX results from the first run of the Relativistic Heavy-Ion Collider at BNL. The observed suppression of moderately high $p_T$…

高能物理 - 实验 · 物理学 2019-08-14 David G. d'Enterria

We introduce momentum-dependent scalar and vector fields into the Lorentz covariant relativistic BUU- (RBUU-) approach employing a polynomial ansatz for the relativistic nucleon-nucleon interaction. The momentum-dependent parametrizations…

核理论 · 物理学 2015-06-26 Tomoyuki Maruyama , Wolfgang Cassing , Ulrich Mosel , Stefan Teis , Klaus Weber

We develop a novel formulation of the hadron-resonance gas model which, besides a hard-core repulsion, explicitly accounts for the surface tension induced by the interaction between the particles. Such an equation of state allows us to go…

We investigate the thermoelectric effect for baryon rich plasma produced in heavy ion collision experiments. We estimate the associated Seebeck coefficient for the hadronic matter. Using kinetic theory within relaxation time approximation…

高能物理 - 唯象学 · 物理学 2019-01-16 Jitesh R. Bhatt , Arpan Das , Hiranmaya Mishra

In this paper, we investigate the kinetic freeze-out properties in relativistic heavy ion collisions at different collision energies. We present a study of standard Boltzmann-Gibbs Blast-Wave (BGBW) fits and Tsallis Blast-Wave (TBW) fits…

核理论 · 物理学 2021-09-03 Jia Chen , Jian Deng , Zebo Tang , Zhangbu Xu , Li Yi

Particles are either bosons or fermions, which obey Bose-Einstein (BE) or Fermi-Dirac statistics, respectively. In the hadronization process the effects of the former kind are the most important ones, since mesons are the most common…

高能物理 - 唯象学 · 物理学 2007-05-23 Henrik Johansson

We investigated a possible interaction between cold dark matter and dark energy, corresponding to a well-known interacting dark energy model discussed in the literature within the context of resolving the Hubble tension. We put constraints…

宇宙学与河外天体物理 · 物理学 2024-08-21 David Benisty , Supriya Pan , Denitsa Staicova , Eleonora Di Valentino , Rafael C. Nunes

The hadronic transport model \textsc{art} is extended to include the production and annihilation of deuterons via the reactions $BB \leftrightarrow dM$, where $B$ and $M$ stand for baryons and mesons, respectively, as well as their elastic…

核理论 · 物理学 2009-12-14 Yongseok Oh , Zi-Wei Lin , Che Ming Ko

We present an analysis of particle production yields measured in central Au-Au collisions at RHIC in the framework of the statistical thermal model. We demonstrate that the model extrapolated from previous analyses at SPS and AGS energy is…

高能物理 - 唯象学 · 物理学 2009-11-07 P. Braun-Munzinger , D. Magestro , K. Redlich , J. Stachel

A simple method of the vertical muon energy spectrum simulations have been suggested. These calculations have been carried out in terms of various models of hadronic interactions. The most energetic $ \pi^\pm $-mesons and K$^\pm $-mesons…

高能天体物理现象 · 物理学 2015-04-23 L. G. Dedenko , A. V. Lukyashin , G. F. Fedorova , T. M. Roganova

We consider thermodynamics of the excluded volume particles at finite temperature and chemical potential, in the low density approximation. We assume Boltzmann statistics and study the influence of the excluded volume on an ideal gas…

高能物理 - 唯象学 · 物理学 2016-02-17 Krzysztof Redlich , Kacper Zalewski

Aiming at a microscopic description of heavy ion collisions in the beam energy region of about 10 A GeV, we extend the Giessen Boltzmann-Uehling-Uhlenbeck (GiBUU) transport model by including a relativistic mean field, in-medium…

核理论 · 物理学 2008-11-26 A. B. Larionov , O. Buss , K. Gallmeister , U. Mosel

The thermodynamic characteristics of hot $\beta$-equilibrium electrically neutral three-flavor quark matter at neutrino confinement are investigated. For the thermodynamic description of such a quark-lepton system, the local SU (3)…

核理论 · 物理学 2021-11-03 G. S. Hajyan , G. B. Alaverdyan

The study focuses on exploring the changes in the hyperon-baryon interaction at various nuclear densities. This approach starts by building a vacuum hyperon-nucleon interaction model based on Boson -Exchange maintaining SU(3) flavor…

核理论 · 物理学 2022-11-30 Madhumita Dhar , Horst Lenske

Using a hybrid (viscous hydrodynamics + hadronic cascade) framework, we model the bulk dynamical evolution of relativistic heavy-ion collisions at Relativistic Heavy Ion Collider (RHIC) Beam Energy Scan (BES) collision energies, including…

We examine the stability of hadron resonance gas models by extending them to take care of undiscovered resonances through the Hagedorn formula. We find that the influence of unknown resonances on thermodynamics is large but bounded. Hadron…

高能物理 - 唯象学 · 物理学 2010-04-29 S. Chatterjee , R. M. Godbole , Sourendu Gupta

We investigate the thermodynamics at finite density of a generalized $(2 + 1)$-dimensional Gross-Neveu model of $N$ fermion species with various types of four-fermion interactions. The motivation for considering such a generalized schematic…

介观与纳米尺度物理 · 物理学 2020-01-01 D. Ebert , D. Blaschke

The conditions of local thermodynamic equilibrium of baryons (non-strange, strange) and mesons (strange) are presented for central Au + Au collisions at FAIR energies using the microscopic transport model UrQMD. The net particle density,…

核理论 · 物理学 2016-10-25 Somnath De , Sudipan De , Subhasis Chattopadhyay

We study the influence of ferromagnetic nonlocal exchange on correlated electrons in terms of a $SU(2)$-Hubbard-Heisenberg model and address the interplay of on-site interaction induced local moment formation and the competition of…

强关联电子 · 物理学 2020-07-01 Edin Kapetanović , Malte Schüler , Gerd Czycholl , Tim O. Wehling

The well-known results concerning a dilute Bose gas with the short-range repulsive interaction should be reconsidered due to a thermodynamic inconsistency of the method being basic to much of the present understanding of this subject and…

统计力学 · 物理学 2007-05-23 A. Yu. Cherny , A. A. Shanenko