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Nucleon momentum distribution (NMD), particularly its high-momentum components, is essential for understanding the nucleon--nucleon ($ NN $) correlations in nuclei. Herein, we develop the studies of NMD of $^{56}\text{Fe}$ from the axially…

核理论 · 物理学 2021-08-30 Xuezhi Wang , Qinglin Niu , Jinjuan Zhang , Mengjiao Lyu , Jian Liu , Chang Xu , Zhongzhou Ren

The aim of this chapter, focused on relativistic mean-field models and part of the Encyclopedia of Nuclear Physics, is to provide an introductory, self-contained discussion accessible to a broad audience, including advanced undergraduate…

核理论 · 物理学 2026-04-10 J. Piekarewicz

Antiproton-nucleon ($\bar{p}N$) total cross sections are typically 3-4 times larger than the $NN$ ones at incident energies from a few hundreds to thousands MeV. We investigate antiproton-nucleus scattering as it could work as a probe of…

核理论 · 物理学 2020-10-28 K. Makiguchi , W. Horiuchi , A. Kohama

Relativistic and non-relativistic modern nucleon-nucleon potentials are mapped on a relativistic operator basis using projection techniques. This allows to compare the various potentials at the level of covariant amplitudes were a…

核理论 · 物理学 2016-08-16 O. Plohl , C. Fuchs , E. N. E. van Dalen

Using the Li\`{e}ge intranuclear-cascade model together with the ablation model ABLA, an investigation is conducted into the effects of $\Lambda$ potential in $\Lambda$-nucleus and $\Lambda$-hypernucleus-nucleus collisions across various…

核理论 · 物理学 2024-04-24 Gao-Chan Yong

The nucleus-nucleus interaction potential has been studied within the relativistic mean field theory. The systematics of the relativistic effects have been investigated by analyzing the relation between the potential and the bombarding…

核理论 · 物理学 2011-02-23 Wen Hui Long , Carlos A. Bertulani

We formulate a lattice Hamiltonian model for intermediate energy heavy ion collisions. Our approach incorporates a momentum-dependent nuclear mean field that yields an optical potential that agrees with proton-nucleus experiments and that…

核理论 · 物理学 2007-05-23 Declan Persram , Charles Gale

A momentum-dependent mean field potential, suitable for application in the transport-model description of nucleus-nucleus collisions, is derived in a microscopic way. The derivation is based upon the Bonn meson-exchange model for the…

核理论 · 物理学 2008-11-26 G. Q. Li , R. Machleidt

The Giessen Boltzmann-Uehling-Uhlenbeck transport model with relativistic mean fields is used to simulate $\bar p$-nucleus collisions. Antiproton absorption cross sections and momentum distributions of annihilation products are calculated…

核理论 · 物理学 2009-09-01 A. B. Larionov , I. A. Pshenichnov , I. N. Mishustin , W. Greiner

In this theoretical study, we establish an interrelationship between the nucleon-nucleon interaction potential and the nuclear fusion reaction cross-sections at low energies. The axially deformed self-consistent relativistic mean field with…

核理论 · 物理学 2018-11-28 M. Bhuyan , Raj Kumar

Nuclear matter and neutron stars are studied in the framework of an extended relativistic mean-field (RMF) model with higher-order derivative and density dependent couplings of nucleons to the meson fields. The derivative couplings lead to…

核理论 · 物理学 2015-05-20 Sofija Antić , Stefan Typel

In nuclear physics, the relativistic mean-field theory describes the nucleus as a system of Dirac nucleons which interact via meson fields. In a static case and without nonlinear self-coupling of the $\sigma$ meson, the relativistic…

数学物理 · 物理学 2015-05-20 Simona Rota Nodari

Realistic density dependent CDM3Yn versions of the M3Y interaction have been used in an extended Hartree-Fock (HF) calculation of nuclear matter (NM), with the nucleon single-particle potential determined from the total NM energy based on…

核理论 · 物理学 2016-10-12 Dao T. Khoa , Nguyen Hoang Phuc , Doan Thi Loan , Bui Minh Loc

The spin and parity dependent nuclear level densities (NLD) are calculated for medium-heavy nuclei using shell model techniques. The NLD are used to calculate cross sections and reaction rates of interest for nuclear astrophysics and…

核理论 · 物理学 2018-01-17 Mihai Horoi , Jayani Dissanayake

We provide a global density-dependent $^4$He-nucleon (DD-$\alpha N$) interaction to construct the $\alpha$-nucleus optical model potential (OMP) in a wide range of incident energies. The global parametrization for the DD-$\alpha N$…

核理论 · 物理学 2023-12-08 T. Furumoto , K. Tsubakihara , S. Ebata , W. Horiuchi

We undertake a quantitative comparison of multi-fragmentation reactions, as modeled by two different approaches: the Antisymmetrized Molecular Dynamics (AMD) and the momentum-dependent stochastic mean-field (SMF) model. Fragment observables…

核理论 · 物理学 2010-12-02 M. Colonna , A. Ono , J. Rizzo

Nucleon-nucleon scattering observables are considered in the context of the large $N_c$ limit of QCD for initial states with moderately high momenta ($p \sim N_c$). The scattering is studied in the framework of the time-dependent mean-field…

核理论 · 物理学 2009-11-07 Thomas D. Cohen , Boris A. Gelman

Relativistic mean field (RMF) theory of nuclear matter with the isovector scalar mean field corresponding to the delta-meson [a_0(980)] is studied. While the delta-meson mean field vanishes in symmetric nuclear matter, it can influence…

天体物理学 · 物理学 2009-10-30 S. Kubis , M. Kutschera

We investigate the asymptotic separation of the optical model potential for nucleon-nucleus scattering in momentum space, where the potential is split into a medium-independent term and another depending exclusively on the gradient of the…

核理论 · 物理学 2008-11-26 F. J. Aguayo , H. F. Arellano

A new microscopic nucleon-nucleon (NN) interaction has been derived for the first time from the popular relativistic mean field theory (RMFT) Lagrangian. The NN interaction so obtained remarkably relate to the inbuilt fundamental parameters…

核理论 · 物理学 2012-10-04 BirBikram Singh , M. Bhuyan , S. K. Patra , Raj K. Gupta