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相关论文: Parameter Counting in Relativistic Mean-Field Mode…

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The relativistic mean-field theory provides a framework in which the nuclear many-body problem is described as a self-consistent system of nucleons and mesons. In the mean-field approximation, the self-consistent time evolution of the…

核理论 · 物理学 2009-10-31 D. Vretenar , P. Ring , G. A. Lalazissis , N. Paar

The nuclear symmetry energy plays important role on the structure of finite nuclei as well as on the bulk properties of neutron stars. However, its values at high densities are completely uncertain and the corresponding experimental data…

核理论 · 物理学 2024-01-17 M. Divaris , A. Kanakis-Pegios , Ch. C. Moustakidis

We study large but finite neural networks that, in the thermodynamic limit, admit an exact low-dimensional mean-field description. We assume that the governing mean-field equations describing macroscopic quantities such as the mean firing…

混沌动力学 · 物理学 2026-02-11 Irmantas Ratas , Kestutis Pyragas

Weighted model counting (WMC) has proven effective at a range of tasks within computer science, physics, and beyond. However, existing approaches for using WMC in quantum physics only target specific problem instances, lacking a general…

量子物理 · 物理学 2026-04-29 Dirck van den Ende , Joon Hyung Lee , Alfons Laarman , Henning Basold

The power spectrum of mass density fluctuations is evaluated from the Mark III and the SFI catalogs of peculiar velocities by a maximum likelihood analysis, using parametric models for the power spectrum and for the errors. The applications…

天体物理学 · 物理学 2007-05-23 Idit Zehavi , Avishai Dekel

Recently developed chiral effective field theory models provide excellent descriptions of the bulk characteristics of finite nuclei, but have not been tested with other observables. In this work, densities from both relativistic…

核理论 · 物理学 2016-09-08 B. C. Clark , R. J. Furnstahl , L. Kurth Kerr , John Rusnak , S. Hama

Relativistic energy density functionals have become a standard framework for nuclear structure studies of ground-state properties and collective excitations over the entire nuclide chart. We review recent developments in modeling nuclear…

核理论 · 物理学 2015-10-28 N. Paar , T. Marketin , D. Vale , D. Vretenar

Motivated by the present interest in the heavy quark effective theory, we use the spectator equation to treat the mesonic bound states of heavy quarks. The kernel we use is based on scalar confining and vector Coulomb potentials. Wave…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Zeng , J. W. Van Orden , W. Roberts

Weinberg's dimensional power counting for nuclei is reprised in this primer. The role of QCD and chiral symmetry in constructing effective Lagrangians is discussed. The two-scale hypothesis of Manohar and Georgi is combined with power…

核理论 · 物理学 2014-11-18 J. L. Friar

In the present work, the critical temperature, critical pressure and critical density, known as the critical parameters related to the liquid-gas phase transition are calculated for 34 relativistic mean-field models, which were shown to…

核理论 · 物理学 2017-07-05 O. Lourenço , M. Dutra , D. P. Menezes

I discuss the use of light cone variables to compute the nucleonic and mesonic components of nuclear wave functions. A Lagrangian and its energy-momentum tensor $T^{^+\mu}$ is used to define the total momentum operators $P^\mu$. The aim is…

核理论 · 物理学 2017-08-23 Gerald A. Miller

In this work, we study the arising of correlations among some isoscalar ($K_o$, $Q_o$, and $I_o$) and isovector ($J$, $L_o$, $K_{sym}^o$, $Q_{sym}^o$, and $I_{sym}^o$) bulk parameters in nonrelativistic and relativistic hadronic mean-field…

核理论 · 物理学 2015-07-22 B. M. Santos , M. Dutra , O. Lourenço , A. Delfino

We investigate the problem of estimating simultaneously multiple parameters encoded in the shape of the modes on which the light is expanded. For this, we generalize the mode-encoded parameter estimation theory as introduced in Ref.[1] to a…

量子物理 · 物理学 2025-05-23 Alexander Boeschoten , Giacomo Sorelli , Manuel Gessner , Claude Fabre , Nicolas Treps

Effective field theories are the most general tool for the description of low energy phenomena. They are universal and systematic: they can be formulated for any low energy systems we can think of and offer a clear guide on how to calculate…

核理论 · 物理学 2017-04-21 Manuel Pavon Valderrama

We demonstrate how observables of slowly rotating neutron stars can be used to constrain the nuclear equation of state. By building a Bayesian framework we demonstrate how combining different types of neutron star measurements, motivated by…

广义相对论与量子宇宙学 · 物理学 2022-07-20 Sebastian H. Völkel , Christian J. Krüger

We obtained a density-dependent analytical expression of binding energy per nucleon for different neutron-proton asymmetry of the nuclear matter (NM) with a polynomial fitting, which manifests the results of effective field theory motivated…

核理论 · 物理学 2021-02-03 Ankit Kumar , H. C. Das , Manpreet Kaur , M. Bhuyan , S. K. Patra

We explore the recently introduced statefinder parameters. After reviewing their basic properties, we calculate the statefinder parameters for a variety of cosmological models, and investigate their usefulness as a means of theoretical…

天体物理学 · 物理学 2007-05-23 A. K. D. Evans , I. K. Wehus , O. Gron , O. Elgaroy

We relate the observable number of sources per solid angle and redshift to the underlying proper source density and velocity, background evolution and line-of-sight potentials. We give an exact result in the case of linearized perturbations…

宇宙学与河外天体物理 · 物理学 2011-09-08 Anthony Challinor , Antony Lewis

We present the simplest nuclear energy density functional (NEDF) to date, determined by only 4 significant phenomenological parameters, yet capable of fitting measured nuclear masses with better accuracy than the Bethe-Weizs\"acker mass…

核理论 · 物理学 2015-07-01 Aurel Bulgac , Michael McNeil Forbes , Shi Jin

Working on the framework of Relativistic Mean Field theory, we exposed the effect of nonlinear isoscalar-isovector coupling on G2 parameter set on the density dependence of nuclear symmetry energy in infinite nuclear matter. The observables…

核理论 · 物理学 2015-06-12 S. K. Singh , M. Bhuyan , P. K. Panda , S. K. Patra