中文
相关论文

相关论文: Nonlocal {\it in-medium} effective interaction for…

200 篇论文

We investigate the nonlocal structure of optical model potentials for nucleon-nucleus scattering based on microscopic approaches. To this purpose, \emph{in-medium} folding optical potentials are calculated in momentum space and their…

核理论 · 物理学 2018-12-05 H. F. Arellano , G. Blanchon

Microscopic optical potentials for nucleon-nucleus (NA) scattering obtained from the full folding of the effective g matrices, solutions of the Bruckner-Bethe-Goldstone equation, with the densities of the target, are applied to the case of…

核理论 · 物理学 2009-11-07 S. Karataglidis , M. B. Chadwick

A global nucleon-nucleus optical potential for elastic scattering has been produced which replicates experimental data to high accuracy and compares well with other recently formulated potentials. The calculation that has been developed…

核理论 · 物理学 2014-03-06 S. P. Weppner , R. B. Penney , G. W. Diffendale , G. Vittorini

The nonrelativistic full-folding optical model approach for nucleon-nucleus scattering is extended into the relativistic regime. In doing so, kinematical issues involving the off-shell Lorentz boost of the colliding particles between the…

核理论 · 物理学 2009-11-07 H. F. Arellano , H. V. von Geramb

After reviewing our microscopic approach to nuclear and neutron-rich matter, we focus on how nucleon-nucleon scattering is impacted by the presence of a dense hadronic medium, with special emphasis on the case where neutron and proton…

核理论 · 物理学 2015-06-16 Francesca Sammarruca

Constructing microscopic effective interactions (`optical potentials') for nucleon-nucleus (NA) elastic scattering requires in first order off-shell nucleon-nucleon (NN) scattering amplitudes between the projectile and the struck target…

核理论 · 物理学 2019-10-03 G. Popa , M. Burrows , Ch. Elster , K. D. Launey , P. Maris , S. P. Weppner

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

The neutron-proton effective $k$-mass splitting in asymmetric nucleonic matter of isospin asymmetry $\delta$ and normal density is found to be $m^{*}_{n-p}\equiv(m^{*}_{n}-m^{*}_{p})/m=(0.41 \pm0.15)\delta$ from analyzing globally 1088 sets…

The sensitivity of nucleon-nucleus elastic scattering to the off-shell behavior of realistic nucleon-nucleon interactions is investigated when on-shell equivalent nucleon-nucleon potentials are used. The study is based on applications of…

核理论 · 物理学 2008-11-26 H. F. Arellano , F. A. Brieva , M. Sander , H. V. von Geramb

Microscopic optical model potential results for reaction cross sections of proton elastic scattering are presented. The applications cover the 10-1000 MeV energy range and consider both stable and unstable nuclei. The study is based on…

核理论 · 物理学 2008-11-26 H. F. Arellano , M. Girod

Background: Calculating microscopic effective interactions (optical potentials) for elastic nucleon-nucleus scattering has already in the past led to a large body of work. For first-order calculations a nucleon-nucleon (\textit{NN})…

核理论 · 物理学 2020-09-16 M. Burrows , R. B. Baker , Ch. Elster , S. P. Weppner , K. D. Launey , P. Maris , G. Popa

The properties of isospin-asymmetric nuclear matter have been investigated in the framework of the extended Brueckner-Hartree-Fock approximation at zero temperature. Self-consistent calculations using the Argonne $V_{14}$ interaction are…

核理论 · 物理学 2009-11-07 W. Zuo , I. Bombaci , U. Lombardo

Nonlocal coordinate space optical potentials for the scattering of 65 MeV protons from nuclei ranging in mass from 6Li to 238U have been defined by folding a complex, medium dependent effective interaction with the density matrix elements…

核理论 · 物理学 2008-11-26 P. J. Dortmans , K. Amos , S. Karataglidis , J. Raynal

The single-particle potentials for nucleons and hyperons in neutron-rich matter generally depends on the density and isospin asymmetry of the medium as well as the momentum and isospin of the particle. It further depends on the temperature…

核理论 · 物理学 2014-07-02 Lie-Wen Chen , Che Ming Ko , Bao-An Li , Chang Xu , Jun Xu

Using various relativistic mean-field models, including the nonlinear ones with meson field self-interactions, those with density-dependent meson-nucleon couplings, and the point-coupling models without meson fields, we have studied the…

核理论 · 物理学 2008-11-26 Lie-Wen Chen , Che Ming Ko , Bao-An Li

We present nucleon elastic scattering calculation based on Green's function formalism in the Random-Phase Approximation. For the first time, the Gogny effective interaction is used consistently throughout the whole calculation to account…

核理论 · 物理学 2015-06-23 G. Blanchon , M. Dupuis , H. F. Arellano , N. Vinh Mau

An analysis of neutron and proton scattering off $^{40,48}$Ca has been carried out. Real and imaginary potentials have been generated using the Nuclear Structure Method (NSM) for scattering with the Gogny D1S nucleon-nucleon effective…

核理论 · 物理学 2017-05-24 G. Blanchon , M. Dupuis , R. N. Bernard , H. F. Arellano

With an isospin- and momentum-dependent transport model, we find that the degree of isospin diffusion in heavy ion collisions at intermediate energies is affected by both the stiffness of the nuclear symmetry energy and the momentum…

核理论 · 物理学 2008-11-26 Lie-Wen Chen , Che Ming Ko , Bao-An Li

Large-angle elastic scattering of alpha-particle and strongly-bound light nuclei at a few tens MeV/nucleon has shown the pattern of rainbow scattering. This interesting process was shown to involve a significant overlap of the two colliding…

核理论 · 物理学 2007-05-23 Dao T. Khoa , W. von Oertzen , H. G. Bohlen , H. S. Than

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
‹ 上一页 1 2 3 10 下一页 ›