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相关论文: Model--space approach to $^{1}S_{0}$ neutron and p…

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The momentum and isospin dependence of the single-particle potential for the in-medium nucleon are the key quantities in the Relativistic Brueckner-Hartree-Fock (RBHF) theory. It depends on how to extract the scalar and the vector…

核理论 · 物理学 2022-10-28 Hui Tong , Chencan Wang , Sibo Wang

The neutron-neutron fusion process, $nn\to de\nu$, at very low neutron energies is studied in the framework of pionless effective field theory that incorporates dibaryon fields. The cross section and electron energy spectrum for this…

核理论 · 物理学 2009-11-11 Shung-ichi Ando , Kuniharu Kubodera

In this work, we present the first extension of the Many-Body Forces (MBF) Model to finite temperature. The MBF Model describes nuclear matter in a relativistic quantum hadrodynamics formalism that takes many-body forces into account…

A relativistic light front formulation of nuclear dynamics is developed and applied to treating infinite nuclear matter in a method which includes the correlations of pairs of nucleons: this is light front Brueckner theory. We start with a…

核理论 · 物理学 2009-10-31 G. A. Miller , R. Machleidt

An effective nucleon-nucleon interaction calculated in nuclear matter from the Bonn potential has been parametrized in terms of a local density- and energy-dependent two-body interaction. This allows to calculate the real part of the…

核理论 · 物理学 2009-10-30 G. Bartnitzky , H. Clement , P. Czerski , H. Müther , F. Nuoffer , J. Siegler

The nuclear mean-field potentials obtained in the Hartree-Fock method with different choices of the in-medium nucleon-nucleon (NN) interaction have been used to study the equation of state (EOS) of the neutron star (NS) matter. The EOS of…

核理论 · 物理学 2011-08-02 Doan Thi Loan , Ngo Hai Tan , Dao T. Khoa , Jerome Margueron

The $^{1}S_{0}$ nucleonic superfluids are investigated within the relativistic mean-field model and Bardeen-Cooper-Schrieffer theory in hyperonic neutron stars. The $^{1}S_{0}$ pairing gaps of neutrons and protons are calculated based on…

高能天体物理现象 · 物理学 2015-06-22 Yan Xu , Cheng-Zhi Liu , Cun-Bo Fan , Xing-Wei Han , Xiao-Jun Zhang , Ming-Feng Zhu , Hong-Yan Wang , Guang-Zhou Liu

Dynamical mean field theory (DMFT) is used to study neutron matter, both with and without admixture of the proton fraction. The system is approximated by the lattice Habbard model. The corresponding equation of state as a function of…

强关联电子 · 物理学 2021-05-26 Maxim Velikanov , Alexey N. Rubtsov , Boris Krippa

The long standing problem of neutron-proton pairing correlations is revisited by employing the Hartree-Fock-Bogoliubov formalism with neutron-proton mixing in both the particle-hole and particle-hole channels. We compare numerical…

核理论 · 物理学 2018-07-10 A. Márquez Romero , J. Dobaczewski , A. Pastore

We explore the equation of state for nuclear matter in the quark-meson coupling model, including full Fock terms. The comparison with phenomenological constraints can be used to restrict the few additional parameters appearing in the Fock…

核理论 · 物理学 2015-11-30 D. L. Whittenbury , J. D. Carroll , A. W. Thomas , K. Tsushima , J. R. Stone

We study the properties of static and rotating neutron stars adopting non-relativistic equations of state (EOS) for asymmetric nuclear matter based on the Brueckner-Hartree-Fock (BHF) scheme. The BHF calculation, with the continuous choice…

核理论 · 物理学 2007-05-23 M. Baldo , G. F. Burgio , H. Q. Song , F. Weber

Neutron star properties, such as its mass, radius, and moment of inertia, are calculated by solving the Tolman-Oppenheimer-Volkov (TOV) equations using the ring-diagram equation of state (EOS) obtained from realistic low-momentum NN…

核理论 · 物理学 2009-12-31 Huan Dong , T. T. S. Kuo , R. Machleidt

We present results for neutron star models constructed with a new equation of state for nuclear matter at zero temperature. The ground state is computed using the Auxiliary Field Diffusion Monte Carlo (AFDMC) technique, with nucleons…

核理论 · 物理学 2010-04-23 S. Gandolfi , A. Yu Illarionov , S. Fantoni , J. C. Miller , F. Pederiva , K. E. Schmidt

We investigate the possible occurrence of a Bose-Einstein condensed phase of matter within neutron stars due to the formation of Cooper pairs among the superfluid neutrons. To this end we study the condensation of bosonic particles under…

广义相对论与量子宇宙学 · 物理学 2015-06-19 Christine Gruber , Axel Pelster

Hydrodynamic simulations of the merger of stellar mass black hole - neutron star binaries (BH/NS) are compared with mergers of binary neutron stars (NS/NS). The simulations are Newtonian, but take into account the emission and backreaction…

天体物理学 · 物理学 2009-10-31 H. -Th. Janka , Th. Eberl , M. Ruffert , C. L. Fryer

We study the energy per particle of symmetric nuclear matter and pure neutron matter using realistic nucleon--nucleon potentials having non central tensor and spin--orbit components, up to three times the empirical nuclear matter saturation…

核理论 · 物理学 2009-11-10 I. Bombaci , A. Fabrocini , A. Polls , I. Vidana

Mutual entrainment effects in hot neutron-proton superfluid mixtures are studied in the framework of the self-consistent nuclear energy-density functional theory. The local mass currents in homogeneous or inhomogeneous nuclear systems,…

核理论 · 物理学 2021-02-24 Valentin Allard , Nicolas Chamel

Pairing correlations in symmetric nuclear matter are studied within a relativistic mean-field approximation based on a field theory of nucleons coupled to neutral ($\sigma$ and $\omega$) and to charged ($\varrho$) mesons. The Hartree-Fock…

核理论 · 物理学 2016-09-08 F. Matera , G. Fabbri , A. Dellafiore

The proton fraction in ${\sl \beta}$-stable neutron stars is investigated within the framework of the Skyrme-Hartree-Fock theory using the extended Skyrme effective interaction for the first time. The calculated results show that the proton…

核理论 · 物理学 2009-11-06 Feng-Shou Zhang , Lie-Wen Chen

Within the minimum model of neutron stars (NS) consisting of neutrons, protons and electrons, a new approach is proposed for inferring the symmetry energy of super-dense neutron-rich nucleonic matter above twice the saturation density…

核理论 · 物理学 2020-06-01 Bao-An Li , Wen-Jie Xie