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The effect of baryon density on parton production processes of $gg\rightleftharpoons ggg$ and $gg\rightleftharpoons q{\bar q}$ is studied using full phase space distribution function and also with inclusion of quantum statistics i.e. Pauli…

高能物理 - 唯象学 · 物理学 2009-10-31 D. Dutta , A. K. Mohanty , K. Kumar , R. K. Choudhury

We study the dense nuclear matter within the holographic Sakai-Sugimoto model. The nuclear matter is described via instantons in bulk, whose size has the new temperature dependency. Then, properties of nuclear matter have been studied for…

高能物理 - 理论 · 物理学 2021-10-04 F. Kazemian , B. Pourhassan

We study thermal and chemical equilibration in 'infinite' hadron matter as well as in finite size relativistic nucleus-nucleus collisions using a BUU cascade transport model with resonance and string degrees-of-freedom. The 'infinite'…

核理论 · 物理学 2009-11-06 E. L. Bratkovskaya , W. Cassing , C. Greiner , M. Effenberger , U. Mosel , A. Sibirtsev

We explore kaon decays with missing energy carried away by a massless dark photon, $\bar\gamma$, assumed to have flavor-changing dipole-type couplings to the $d$ and $s$ quarks. We consider in particular the neutral-kaon modes…

高能物理 - 唯象学 · 物理学 2020-09-08 Jhih-Ying Su , Jusak Tandean

We present an extended version of the dynamical model for a multi-quark droplet evolution described in our proceeding paper. The model includes collective expansion of the droplet, effects of the vacuum pressure and surface tension, and now…

核理论 · 物理学 2014-03-05 Johan J. Bjerrum-Bohr , Igor N. Mishustin , Thomas Døssing

The precision reached by recent lattice QCD results allows for the first time to investigate whether the measured hadronic spectrum is missing some additional strange states, which are predicted by the Quark Model but have not yet been…

We investigate the Fourier coefficients $b_k(T)$ of the net--baryon number density in strongly interacting matter at nonzero temperature and density. The asymptotic behavior of the coefficients at large $k$ is determined by the…

高能物理 - 唯象学 · 物理学 2019-08-06 Gabor Andras Almasi , Bengt Friman , Kenji Morita , Pok Man Lo , Krzysztof Redlich

The $\phi$ meson and $\Omega$ baryon provide unique probes of the properties of the quark-gluon plasma (QGP) at hadronization in relativistic heavy-ion collisions. Using the quark recombination model with the quark phase-space information…

核理论 · 物理学 2024-04-18 Zhidong Yang , Yifeng Sun , Lie-Wen Chen

Quark-hadron matter at finite temperature and density is studied using a two-flavor, color SU(2) (P)NJL model. The hadronic effective Lagrangian, derived by bosonization of the quark fields and renormalized using the Eguchi method, emerges…

核理论 · 物理学 2014-01-16 Shotaro Imai , Hiroshi Toki , Wolfram Weise

Using Taylor expansions of the pressure obtained previously in studies of 2-flavor QCD at non-zero chemical potential we calculate expansion coefficients for the energy and entropy densities up to ${\cal O}(\mu_q^6)$ in the quark chemical…

高能物理 - 格点 · 物理学 2009-11-11 S. Ejiri , F. Karsch , E. Laermann , C. Schmidt

We present the first lattice QCD results of quadratic fluctuations and correlations of conserved charges in (2+1)-flavor lattice QCD in the presence of a background magnetic field. The simulations were performed using the Highly Improved…

高能物理 - 格点 · 物理学 2025-02-06 Heng-Tong Ding , Jin-Biao Gu , Arpith Kumar , Sheng-Tai Li , Jun-Hong Liu

The thermodynamic properties of high temperature and high density QCD-matter are studied using the Chiral SU(3)-flavor parity-doublet Polyakov-loop quark-hadron mean-field model, CMF. The CMF model provides a proper description of lattice…

高能物理 - 唯象学 · 物理学 2021-02-03 Anton Motornenko , Jan Steinheimer , Volodymyr Vovchenko , Stefan Schramm , Horst Stoecker

The structure of $K^-$-condensed hypernuclei, which may be produced in the laboratory in strangeness-conserving processes, is investigated using an effective chiral Lagrangian for the kaon-baryon interaction, combined with a nonrelativistic…

核理论 · 物理学 2008-11-26 Takumi Muto

We study the Fourier coefficients b(k,T) of the net baryon number density in strongly interacting matter at finite temperature. We show that singularities in the complex chemical potential plane connected with phase transitions are…

高能物理 - 唯象学 · 物理学 2019-04-05 Gabor Andras Almasi , Bengt Friman , Kenji Morita , Krzysztof Redlich

The properties of dense QCD matter are delineated through the construction of equations of state which should be consistent with QCD calculations in the low and high density limits, nuclear laboratory experiments, and the neutron star…

高能天体物理现象 · 物理学 2019-09-04 Toru Kojo

We have studied the chiral soliton model in a thermal vacuum. The soliton equations are solved at finite temperature and density. The temperature or density dependent soliton solutions are presented. The physical properties of baryons are…

核理论 · 物理学 2015-06-18 Song Shu , Jia-Rong Li

Recent interest in the study of color superconductivity has focused on the regime of high baryon density where perturbative QCD may be employed. Based on the dominant one-gluon-exchange interaction, both the transition temperature and zero…

高能物理 - 唯象学 · 物理学 2009-10-31 William E. Brown , James T. Liu , Hai-cang Ren

The thermal behavior of the spectroscopic parameters of the S-wave single heavy baryons $ \Sigma_{Q}^{*}, \Xi_{Q}^{*}$ and $ \Omega_{Q}^{*} $ with spin-3/2 are investigated in QCD at finite temperature. We analyze the variations of the mass…

高能物理 - 唯象学 · 物理学 2020-06-24 K. Azizi , A. Türkan

The behavior of QCD at high baryon density and low temperature is crucial to understanding the properties of neutron stars and gravitational waves emitted during their mergers. In this paper we study small systems of baryons in periodic…

核理论 · 物理学 2018-09-05 Stefano Gandolfi , Joseph Carlson , Alessandro Roggero , Joel Lynn , Sanjay Reddy

We study the spectrum of light baryons and hyperons as a function of temperature using lattice gauge theory methods. We find that masses of positive parity states are temperature independent, within errors, in the hadronic phase. The…

高能物理 - 格点 · 物理学 2019-11-06 Gert Aarts , Chris Allton , Davide de Boni , Jonas Glesaaen , Simon Hands , Benjamin Jäger , Jon-Ivar Skullerud