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Superfluidity of $\Lambda$ and $\Sigma^-$ admixed in neutron star (NS) cores is investigated realistically for hyperon ($Y$)-mixed NS models obtained using a $G$-matrix-based effective interaction approach. Numerical results for the…

核理论 · 物理学 2009-11-11 Tatsuyuki Takatsuka , Shigeru Nishizaki , Yasuo Yamamoto , Ryozo Tamagaki

We upgrade a SU_6 quark-model description for the nucleon-nucleon and hyperon-nucleon interactions by improving the effective meson-exchange potentials acting between quarks. For the scalar- and vector-meson exchanges, the…

核理论 · 物理学 2013-05-29 Y. Fujiwara , T. Fujita , M. Kohno , C. Nakamoto , Y. Suzuki

By considering the $x$-dependence of $\pi^+$, $\pi^-$, $K^+$, $K^-$, $\Lambda$, $\bar{\Lambda}$, $p$, $\bar{p}$ hadron productions in charged lepton semi-inclusive deep inelastic scattering off nuclear target (using Fe as an example) and…

核理论 · 物理学 2008-11-26 Baogui Lu , Bo-Qiang Ma

The off-shell behaviors of bound nucleons in deep inelastic lepton nucleus scattering are discussed in two scenarios with the basic constituents chosen to be baryon-mesons and quark-gluons respectively in light-cone formalism. It is found…

核理论 · 物理学 2012-06-26 Bo-Qiang Ma

External electromagnetic fields can provoke stress, and thus modifications of the internal structure of nucleons. Working with this hypothesis, one can derive a simple description of the charge dependence of the EMC effect. This first…

核理论 · 物理学 2020-03-27 Benjamin Koch

The effects of charge independence breaking of nucleon-nucleon interaction on the bulk properties of nuclear matter are investigated. Our results indicate that at high densities, the inclusion of charge dependence in the nucleon-nucleon…

核理论 · 物理学 2009-11-10 G. H. Bordbar

Energy density functionals (EDFs) have been used extensively with great success to calculate properties of nuclei and to predict the equation of state (EOS) of dense nuclear matter. Besides non-relativistic EDFs, mostly of the Skyrme or…

核理论 · 物理学 2024-10-29 Stefan Typel , Shalom Shlomo

An accurate assessment of the hyperon-nucleon interaction is of great interest in view of recent observations of very massive neutron stars. The challenge is to build a realistic interaction that can be used over a wide range of masses and…

核理论 · 物理学 2014-01-22 Diego Lonardoni , Francesco Pederiva , Stefano Gandolfi

The nonleptonic weak $|\Delta S|=1$ $\Lambda N$ interaction, responsible for the dominant nonmesonic decay of all but the lightest hypernuclei, is studied in the framework of an effective field theory. The long-range physics is described…

核理论 · 物理学 2009-11-10 Assumpta Parreno , Cornelius Bennhold , Barry R. Holstein

Density dependences of the mass and self-energies of $\Lambda_c$ in nulear matter are studied in the parity projected QCD sum rule. Effects of nuclear matter are taken into account through the quark and gluon condensates. It is found that…

高能物理 - 唯象学 · 物理学 2017-11-27 Keisuke Ohtani , Ken-ji Araki , Makoto Oka

The YN results are presented from the Extended-soft-core (ESC) interactions. They consist of local- and non-local-potentials due to (i) One-boson-exchange (OBE), with pseudoscalar-, vector-, scalar-, and axial-vector-nonets, (ii)…

核理论 · 物理学 2008-11-26 Th. A. Rijken , Y. Yamamoto

Model-space effective interactions $V_{eff}$ derived from free-space nucleon-nucleon interactions $V_{NN}$ are reviewed. We employ a double decimation approach: first we extract a low-momentum interaction $V_{low-k}$ from $V_{NN}$ using a…

核理论 · 物理学 2016-03-23 T. T. S. Kuo , J. W. Holt , E. Osnes

Nucleon self-energies and interaction potentials in supernova (SN) matter, which are known to have an important effect on nucleosynthesis conditions in SN ejecta are investigated. Corresponding weak charged-current interaction rates with…

核理论 · 物理学 2015-05-22 Matthias Hempel

The production, dynamic evolution, and decay of $\Delta$ particles play a crucial role in understanding the properties of high baryon density nuclear matter in intermediate-energy heavy-ion collisions. In this work, the energy-, density-,…

核理论 · 物理学 2025-09-16 Manzi Nan , Pengcheng Li , Wei Zuo , Qingfeng Li

We introduce a mean field model based on realistic 2-body baryon interactions and calculate spectra of a set of p-shell and sd-shell {\Lambda} hypernuclei - 13{\Lambda}C, 17{\Lambda}O, 21{\Lambda}Ne, 29{\Lambda}Si and 41{\Lambda}Ca. The…

核理论 · 物理学 2016-08-24 P. Veselý , E. Hiyama , J. Hrtánková , J. Mareš

Structures of $p$- and $sd$-shell nuclei are studied with the deformed-basis antisymmetrized molecular dynamics method using the Gogny D1S and Skyrme SLy7 forces as effective interactions. By the energy variation with a constraint, energy…

核理论 · 物理学 2009-06-25 Yasutaka Taniguchi , Yoshiko Kanada-En'yo , Masaaki Kimura

The nonleptonic weak $|\Delta S|=1$ $\Lambda N$ interaction, responsible for the dominant, nonmesonic decay of all but the lightest hypernuclei, is studied in the framework of an effective field theory. The long-range physics is described…

核理论 · 物理学 2009-11-10 A. Parreno , C. Bennhold , B. R. Holstein

A consistent Hartree-Fock study of the equation of state (EOS) of asymmetric nuclear matter at finite temperature has been performed using realistic choices of the effective, density dependent nucleon-nucleon (NN) interaction, which were…

核理论 · 物理学 2016-03-30 Ngo Hai Tan , Doan Thi Loan , Dao T. Khoa , Jerome Margueron

We present a systematic study of particle production in $Ne+Ne$ collisions at $\sqrt{s_{\mathrm{NN}}} = 5.36$ TeV using the A Multi-Phase Transport (AMPT) model with string melting (SM) configuration. The analysis compares spherical and…

高能物理 - 唯象学 · 物理学 2026-04-23 M. U. Ashraf , A. M. Khan , M. Shahid , Faraz Mohd Mehdi

In this study, we investigate the impact of effective nucleon mass and the existence of the dineutron $(\mathrm{^{2}n})$ and the tetraneutron $(\mathrm{^{4}n})$ on the thermodynamic properties and nuclear compositions by constructing new…

核理论 · 物理学 2026-04-14 Tatsuya Matsuki , Shun Furusawa , Kohsuke Sumiyoshi , Hong Shen , Katsuhiko Suzuki