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The Thomas-Fermi approximation is a powerful method that has been widely used to describe atomic structures, finite nuclei, and nonuniform matter in supernovae and neutron-star crusts. Nonuniform nuclear matter at subnuclear density is…

核理论 · 物理学 2025-08-05 Shuying Li , Hong Shen , Jinniu Hu

Nuclear model effects in neutrino-nucleus quasielastic scattering are studied within the distorted wave impulse approximation, using a relativistic shell model to describe the nucleus, and comparing it with the relativistic Fermi gas. Both…

核理论 · 物理学 2007-05-23 Chiara Maieron

Shear flows are ubiquitously present in space and astrophysical plasmas. This paper highlights the central idea of the non-thermal acceleration of charged particles in shearing flows and reviews some of the recent developments. Topics…

高能天体物理现象 · 物理学 2019-09-17 Frank M. Rieger

An extended version of the Nambu-Jona-Lasinio (NJL) model is applied to describe both nuclear matter and surface properties of finite nuclei. Several parameter sets are discussed and a comparison of the saturation properties and equation of…

We study the non-uniform nuclear matter using the self-consistent Thomas--Fermi approximation with a relativistic mean-field model. The non-uniform matter is assumed to be composed of a lattice of heavy nuclei surrounded by dripped…

核理论 · 物理学 2014-06-11 Z. W. Zhang , H. Shen

We develop a theoretical method going beyond the contact-interaction approximation frequently used in mean-field theories of many-fermion systems, based on the low-energy T-matrix of the pair potential to rigorously define the effective…

量子气体 · 物理学 2011-11-03 Stefano Simonucci , Giovanni Garberoglio , Simone Taioli

The properties of high-density nuclear and neutron matter are studied using a relativistic mean-field approximation to the nuclear matter energy functional. Based on ideas of effective field theory, nonlinear interactions between the fields…

核理论 · 物理学 2009-10-30 Horst Mueller , Brian D. Serot

We consider a new approach to the description of dense nuclear matter in the framework of chirally symmetric, quark-based hadron models. As previously in the Skyrme model, the dense environment is described in terms of hyperspherical cells…

核理论 · 物理学 2009-10-28 Hilmar Forkel

Motivated by recent experiments in ultracold atomic gases that explore the nonequilibrium dynamics of interacting quantum many-body systems, we investigate the nonequilibrium properties of a Fermi liquid. We apply an interaction quench…

强关联电子 · 物理学 2015-05-13 Michael Moeckel , Stefan Kehrein

Using a geometric averaging procedure applied to a non-affine linear connection, we prove that for a narrow one particle distribution function and in the ultra-relativistic limit, a bunch of point charged particles can be described by a…

数学物理 · 物理学 2024-11-07 Ricardo Gallego Torrome

The basic concepts of a generalized relativistic density functional approach to the equation of state of dense matter are presented. The model is an extension of relativistic mean-field models with density-dependent couplings. It includes…

核理论 · 物理学 2015-04-08 Stefan Typel

We establish the existence of a far-from-equilibrium attractor in weakly-coupled gauge theory undergoing 0+1d Bjorken expansion which goes beyond the energy-momentum tensor to the detailed form of the one-particle distribution function. We…

高能物理 - 理论 · 物理学 2022-08-02 Dekrayat Almaalol , Kirill Boguslavski , Aleksi Kurkela , Michael Strickland

Dense matter is usually described using some kind of mean field theory (MFT) model based on Boltzmann-Gibbs (BG) extensive statistics. However, in many cases the conditions justifying the use of BG statistics are not fulfilled because the…

高能物理 - 唯象学 · 物理学 2020-04-22 Jacek Rożynek , Grzegorz Wilk

A large class of polarized and unpolarized deep inelastic data is successfully described with Fermi-Dirac functions for the non-diffractive part of quark parton distributions. The NLO approach used here improves the agreement with…

高能物理 - 唯象学 · 物理学 2007-05-23 F. Buccella , O. Pisanti , L. Rosa

We obtain a non-linear generalization of the relativistic diffusion of particles with spin. We discuss diffusion equations whose non-linearity is a consequence of quantum statistics. We show that the assumptions of the relativistic…

高能物理 - 理论 · 物理学 2011-06-20 Z. Haba

We review the currently available formalisms for radiative energy loss of a high-momentum parton in a dense strongly interacting medium. The underlying theoretical framework of the four commonly used formalisms is discussed and the…

We investigate how the non-extensive approach works in high-energy physics. Transverse momentum ($p_T$) spectra of several hadrons are fitted by various non-extensive momentum distributions and by the Boltzmann--Gibbs statistics.~It is…

高能物理 - 唯象学 · 物理学 2019-05-23 Keming Shen , Gergely Gábor Barnaföldi , Tamás Sándor Biró

The quantum mechanical motion of a relativistic particle in a non-continuous spacetime is investigated. The spacetime model is a dense, rationale subset of two-dimensional Minkowski spacetime. Solutions of the Dirac equation are calculated…

量子物理 · 物理学 2009-11-07 A. Kull

Impulsive hadronic descriptions of electroweak processes in nuclei involve two distinctly different elements: one stems from the nuclear many-body physics --- the medium --- which is rather similar for the various inclusive response…

核理论 · 物理学 2009-11-06 L. Alvarez-Ruso , M. B. Barbaro , T. W. Donnelly , A. Molinari

The case of heavy quark propagation in dense extended matter is studied in the multiple scattering formalism of the higher twist energy loss scheme. We consider the case of deep inelastic scattering off a large nucleus. The hard lepton…

核理论 · 物理学 2014-12-31 Raktim Abir , Gagan Deep Kaur , Abhijit Majumder