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The existence of phase transitions from liquid to gas phases in asymmetric nuclear matter (ANM) is related with the instability regions which are limited by the spinodals. In this work we investigate the instabilities in ANM described…

Nuclear Theory · Physics 2009-11-10 S. S. Avancini , L. Brito , D. P. Menezes , C. Providencia

We study the interaction between dark matter (DM) and highly magnetized neutron stars (NSs), focusing on how DM particle mass, mass fraction, and magnetic field (MF) strength affect NS structure and stability. We consider self-interacting,…

Nuclear Theory · Physics 2025-06-04 Pinku Routaray , Vishal Parmar , H. C. Das , Bharat Kumar , G. F. Burgio , H. -J. Schulze

In this work, we investigate hot, isentropic compact stars in the limiting cases of static and maximally rotating configurations, focusing on how variations in the symmetry energy of the equation of state derived from covariant density…

High Energy Astrophysical Phenomena · Physics 2026-02-02 Stefanos Tsiopelas , Armen Sedrakian , Micaela Oertel

Using holographic duality, we investigate the impact of finite temperature on the instability and splitting patterns of quadruply quantized vortices, providing the first-ever analysis in this context. Through linear stability analysis, we…

Quantum Gases · Physics 2023-12-01 Shanquan Lan , Xin Li , Yu Tian , Peng Yang , Hongbao Zhang

The cooling process of a protoneutron star is investigated with focus on its sensitivity to properties of hot and dense matter. An equation of state, which includes the nucleon effective mass and nuclear symmetry energy at twice the…

High Energy Astrophysical Phenomena · Physics 2019-06-20 Ken'ichiro Nakazato , Hideyuki Suzuki

Utilizing various astrophysical constraints on neutron star structures, we carry out a Bayesian analysis on the density-dependent behaviors of coupling constants in RMF models as well as the nuclear matter properties at supranuclear…

Nuclear Theory · Physics 2024-11-12 Cheng-Jun Xia , Wen-Jie Xie , Mohemmedelnazier Bakhiet

The density dependence of the nuclear symmetry energy is inspected using the Statistical Multifragmentation Model with Skyrme effective interactions. The model consistently considers the expansion of the fragments' volumes at finite…

Nuclear Theory · Physics 2009-10-29 S. R. Souza , M. B. Tsang , B. V. Carlson , R. Donangelo , W. G. Lynch , A. W. Steiner

The density and temperature dependence of nucleonic single particle spectral function in symmetric nuclear matter at finite temperatures and densities beyond normal nuclear matter density is investigated in a model emphasizing short-range…

Nuclear Theory · Physics 2009-11-10 Frank Froemel , Horst Lenske , Ulrich Mosel

Isospin transport occurring within dinuclear projectile-like fragments (PLFs) produced in heavy- ion collisions is explored as a probe of the nuclear symmetry energy. Within the framework of the Constrained Molecular Dynamics model (CoMD),…

Nuclear Experiment · Physics 2014-12-30 K. Stiefel , Z. Kohley , R. T. deSouza , S. Hudan , K. Hammerton

Realistic estimations on the elastic properties of neutron star matter are carried out with a large strain ($\varepsilon \lesssim 0.5$) in the framework of relativistic-mean-field model with Thomas-Fermi approximation, where various…

In the presence of strong magnetic field reported to have been observed on the surface of some neutron stars and on what are called Magnetars, a host of physical phenomenon from the birth of a neutron star to free streaming neutrino cooling…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ashok Goyal

The nuclear symmetry energy is a fundamental quantity important for studying the structure of systems as diverse as the atomic nucleus and the neutron star. Considerable efforts are being made to experimentally extract the symmetry energy…

Nuclear Experiment · Physics 2015-05-18 D. V. Shetty , S. J. Yennello

The density dependence of the nuclear symmetry energy remains one of the key uncertainties in contemporary nuclear physics, with significant implications for the structure of exotic nuclei, the dynamics of heavy-ion collisions, and the…

Nuclear Theory · Physics 2026-05-08 S. Mallik , F. Gulminelli , C. Ciampi , D. Gruyer

The effect of temperature and density dependence of the asymmetric nuclear matter properties is studied within the extended relativistic mean field (ERMF) model, which includes the contribution from the self and mixed interaction terms by…

Nuclear Theory · Physics 2011-10-14 Mahajan Gulshan , Shashi K. Dhiman

The nuclear symmetry energy characterizes the variation of the binding energy as the neutron to proton ratio of nuclear systems (e.g. finite nucleus, neutron star etc.) is varied. The densities associated to these nuclear systems vary over…

Nuclear Theory · Physics 2018-08-24 Chiranjib Mondal

We investigate the structural and observable impacts of dark matter (DM) on neutron stars using a combined equation of state that integrates the relativistic mean field (RMF) model for baryonic matter with a variable density profile for DM,…

High Energy Astrophysical Phenomena · Physics 2025-01-14 Ankit Kumar , Hajime Sotani

Inelastic neutron scattering is used to investigate the temperature dependence of spin correlations in the 3-dimensional XY antiferromagnet Ni(Cl$_{1-x}$Br$_x$)$_2$$\cdot$4SC(NH$_2$)$_2$, $ x = 0.14(1)$, tuned close to the…

Strongly Correlated Electrons · Physics 2020-12-08 L. Facheris , D. Blosser , K. Yu. Povarov , R. Bewley , S. Gvasaliya , A. Zheludev

We clarify how the weak-interaction-driven bulk viscosity $\zeta$ and the bulk relaxation time $\tau_\Pi$ of neutrino-transparent $npe$ matter depend on the nuclear symmetry energy. We show that, at saturation density, the equation-of-state…

Nuclear Theory · Physics 2025-11-11 Yumu Yang , Mauricio Hippert , Enrico Speranza , Jorge Noronha

The agreement between the fragments' internal and kinetic temperatures with the breakup temperature is investigated using a Statistical Multifragmentation Model which makes no a priori as- sumption on the relationship between them. We thus…

Nuclear Theory · Physics 2015-09-02 S. R. Souza , B. V. Carlson , R. Donangelo , W. G. Lynch , M. B. Tsang

There are a variety of cosmological models for dark matter and dark energy in which a possible interaction is considered between these two significant components of the universe. We focus on five suggested models of interacting dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-09 Mahdi Naseri , Javad T. Firouzjaee
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