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We study the equation of state of beta-stable dense matter and models of neutron stars in the relativistic mean field theory with the isovector scalar mean field corresponding to the delta-meson [a_0(980)]. A range of values of the…

天体物理学 · 物理学 2007-05-23 S. Kubis , M. Kutschera , S. Stachniewicz

We investigate the modification of meson spectral densities in dense nuclear matter at zero temperature. These effects are studied in a fully relativistic mean field model which goes beyond the linear density approximation and also includes…

核理论 · 物理学 2009-11-07 O. Teodorescu , A. K. Dutt-Mazumder , C. Gale

We present a methodical study of the thermal and nuclear properties for the hot nuclear matter using relativistic-mean field theory. We examine the effects of temperature on the binding energy, pressure, thermal index, symmetry energy, and…

高能物理 - 唯象学 · 物理学 2021-09-17 Ankit Kumar , H. C. Das , M. Bhuyan , S. K. Patra

Using the equation of state of asymmetric nuclear matter that has been recently constrained by the isospin diffusion data from intermediate-energy heavy ion collisions, we have studied the transition density and pressure at the inner edge…

核理论 · 物理学 2009-12-01 Lie-Wen Chen , Bao-An Li , Hong-Ru Ma , Jun Xu

We present a numerical study of shear viscosity and thermal conductivity of symmetric nuclear matter, pure neutron matter and $\beta$-stable nuclear matter, in the framework of the Brueckner theory. The calculation of in-medium cross…

太阳与恒星天体物理 · 物理学 2014-11-21 H. F. Zhang , U. Lombardo , W. Zuo

We present a novel framework for the equation of state of dense and hot Quantum Chromodynamics (QCD), which focuses on the region of the phase diagram relevant for neutron star mergers and core-collapse supernovae. The model combines…

高能物理 - 唯象学 · 物理学 2023-11-09 Tuna Demircik , Christian Ecker , Matti Järvinen

We discuss the chromomagnetic instability problem in the 2SC/g2SC phases and explore the phase structure of the gluonic phase which is a candidate for the ground state of dense neutral quark matter.

高能物理 - 唯象学 · 物理学 2009-01-14 O. Kiriyama

The thermodynamics of excited nuclear systems allows one to explore the second-order phase transition in a two-component quantum mixture. Temperatures and densities are derived from quantum fluctuations of fermions. The pressures are…

We use the holographic V-QCD models to analyse the physics of dense QCD and neutron stars. Accommodating lattice results for thermodynamics of QCD enables us to make generic predictions for the Equation of State (EoS) of the quark matter…

高能物理 - 唯象学 · 物理学 2019-03-27 Niko Jokela , Matti Jarvinen , Jere Remes

We explore the thermodynamic properties of homogeneous cold (zero-temperature) nuclear matter including nucleons and $\alpha$-particle condensation at low densities by using a generalized nonlinear relativistic mean-field (gNL-RMF) model.…

核理论 · 物理学 2019-11-13 Zhao-Wen Zhang , Lie-Wen Chen

We investigate the role of thermal instability, arising from radiative cooling of an optically thin, dusty plasma, by linear stability analysis. The corresponding isobaric stability condition for condensation mode is found to be modified…

等离子体物理 · 物理学 2007-05-23 Madhurjya P. Bora

We construct a model to describe dense hadronic matter at zero and finite temperature, based on the parity doublet model of DeTar and Kunihiro, with including the iso-singlet scalar meson $\sigma$ as well as $\rho$ and $\omega$ mesons. We…

核理论 · 物理学 2015-08-12 Yuichi Motohiro , Youngman Kim , Masayasu Harada

Assuming that nuclear matter can be treated as a perfect fluid, we study the propagation of perturbations in the baryon density. The equation of state is derived from a relativistic mean field model, which is a variant of the non-linear…

核理论 · 物理学 2009-11-13 D. A. Fogaça , L. G. Ferreira Filho , F. S. Navarra

New astrophysical instruments such as skA (square kilometer Array) and IXO (formerly Constellation X) promise the discovery of tens of thousands of new isolated rotating neutron stars (pulsars), neutron stars in low-mass X-ray binaries…

太阳与恒星天体物理 · 物理学 2010-11-02 Fridolin Weber , Rodrigo Negreiros

The prediction of the equation of state of hot, dense nuclear matter is one of the most complicated and interesting problems in nuclear astrophysics. At the same time, knowledge of it is the basic ingredient for some of the most interesting…

高能天体物理现象 · 物理学 2021-05-12 P. S. Koliogiannis , Ch. C. Moustakidis

In nucleus-nucleus collisions at ultra-relativistic energies matter is formed with initial energy density significantly exceeding the critical energy density for the transition from hadronic to partonic matter. We will review the…

核实验 · 物理学 2009-11-10 P. Braun-Munzinger

We examine bulk viscosity, taking into account trapped neutrinos in baryonic matter, in the context of binary neutron star mergers. Following the merging event, the binary star can yield a remnant compact object with densities up to $5$…

核理论 · 物理学 2024-09-25 Sreemoyee Sarkar , Rana Nandi

We construct a simple holographic QCD model to study nuclear matter to strange matter transition. The interaction of dense medium and hadrons is taken care of by imposing the force balancing condition for stable D4/D6/D6 configuration. By…

高能物理 - 理论 · 物理学 2015-05-14 Youngman Kim , Yunseok Seo , Sang-Jin Sin

The freeze out of a massive nucleon gas through a finite layer with time-like normal is studied. The impact of in-medium nucleon mass shift on the freeze out process is investigated. A considerable modification of the thermodynamical…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Zschocke , L. P. Csernai , E. Molnar , J. Manninen , A. Nyiri

The calculated nuclear matrix elements for the neutrinoless double-beta ($0\nu\beta\beta$) decay suffer from several limitations. Predicted matrix-element values depend on the many-body method used to calculate them and, in addition, they…

核理论 · 物理学 2019-01-30 Javier Menéndez
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