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相关论文: Medium modification of the nucleon mechanical prop…

200 篇论文

We show theoretical results for $(\gamma, \pi^0 \pi^0)$ production on nucleons and nuclei in the kinematical region where the scalar isoscalar $\pi \pi$ amplitude is influenced by the $\sigma$ pole. The final state interaction of the pions…

核理论 · 物理学 2011-02-09 L. Roca , E. Oset , M. J. Vicente Vacas

Recent experiments performed on inclusive electron scattering from nuclear targets have measured the nucleon electromagnetic structure functions $F_1(x,Q^2)$, $F_2(x,Q^2)$ and $F_L(x,Q^2)$ in $^{12}C$, $^{27}Al$, $^{56}Fe$ and $^{64}Cu$…

核理论 · 物理学 2015-09-30 H. Haider , F. Zaidi , M. Sajjad Athar , S. K. Singh , I. Ruiz Simo

We study the holographic light meson spectra and their mass splitting in the nuclear medium. In order to describe the nuclear matter, we take into account the thermal charged AdS geometry with two flavor charges, which can be reinterpreted…

高能物理 - 理论 · 物理学 2015-06-16 Bum-Hoon Lee , Shahin Mamedov , Siyoung Nam , Chanyong Park

We consider heavy mesons with charm and bottom in nuclear medium. We construct the effective Lagrangian with axial-vector coupling including 1/M-corrections for the heavy meson mass $M$ by following the velocity-rearrangement invariance. As…

高能物理 - 唯象学 · 物理学 2014-01-08 S. Yasui , K. Sudoh

We study the structure of generalized parton distributions in spin 0 nuclei within a microscopic approach for nuclear dynamics. GPDs can be used on one side as tools to unravel the deep inelastic transverse structure of nuclei in terms of…

高能物理 - 唯象学 · 物理学 2009-11-11 S. Liuti , S. K. Taneja

We investigate the properties of baryonic matter within the framework of the in-medium modified chiral soliton model by taking into account the effects of surrounding baryonic environment on the properties of in-medium baryons. The internal…

核理论 · 物理学 2021-06-16 Nam-Yong Ghim , Ghil-Seok Yang , Hyun-Chul Kim , Ulugbek Yakhshiev

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

The Skyrme model, though it admits correctly a wide range of static properties of the nucleon, does not seem to reproduce properly the scattering behavior of nucleons at high energies. In this paper we present a $T\bar T$-like deformation…

高能物理 - 理论 · 物理学 2021-05-19 Horatiu Nastase , Jacob Sonnenschein

Proton and neutron electric and magnetic form factors are the primary characteristics of their spatial structure and have been studied extensively over the past half-century. At large values of the momentum transfer $Q^2$ they should reveal…

高能物理 - 格点 · 物理学 2025-02-25 S. Syritsyn , M. Engelhardt , S. Krieg , J. Negele , A. Pochinsky

Mass number dependence of the nuclear radii is closely related to the nuclear matter properties. It is known that the most of nuclei exhibit some deformation. We discuss how the nuclear density profile is modified by the nuclear deformation…

核理论 · 物理学 2021-06-28 Wataru Horiuchi , Tsunenori Inakura

We present theoretical results for (gamma,pi0 pi0) and (gamma,pi+- pi0) production on nucleons and nuclei in the kinematical region where the scalar isoscalar pi pi amplitude is influenced by the sigma pole. The final state interaction of…

核理论 · 物理学 2009-11-07 L. Roca , E. Oset , M. J. Vicente Vacas

Moments of unpolarized, helicity, and transversity distributions, electromagnetic form factors, and generalized form factors of the nucleon are presented from a preliminary analysis of lattice results using pion masses down to 359 MeV. The…

高能物理 - 格点 · 物理学 2014-11-17 R. G. Edwards , G. Fleming , Ph. Hagler , J. W. Negele , K. Orginos , A. V. Pochinsky , D. B. Renner , D. G. Richards , W. Schroers

Using the unification of the chiral SU(3) model and QCD sum rules, we deduce the in-medium properties of $K^\pm_1$ meson. Within the chiral SU(3) model, medium modified gluon and quark condensates are evaluated through their interactions…

高能物理 - 唯象学 · 物理学 2021-04-20 Rajesh Kumar , Arvind Kumar

The gravitational form factors (GFFs) are a fundamental and elegant way to describe the structure of nucleons and nuclei. Their Fourier transform allows a description of the spatial distribution of the mass, angular momentum, pressure, and…

核实验 · 物理学 2024-03-18 Zein-Eddine Meziani

We investigate the bulk properties of symmetric nuclear matter within the framework of an in-medium modified chiral solitonic model with $\pi$, $\rho$ and $\omega$ mesons. We consider the modification of meson degrees of freedom in nuclear…

高能物理 - 唯象学 · 物理学 2015-06-12 Ju-Hyun Jung , Ulugbek T. Yakhshiev , Hyun-Chul Kim

We study the medium modifications of baryon properties in nuclear many-body systems, especially in $\Lambda$ hypernuclei. The nucleon and the $\Lambda$ hyperon are described in the Friedberg-Lee model as nontopological solitons which…

核理论 · 物理学 2015-06-15 J. S. Liang , H. Shen

We apply the strong $\pi NN$ form factor, which emerges from the Skyrme model, in the two-nucleon system using a one-boson-exchange (OBE) model for the nucleon-nucleon (NN) interaction. Deuteron properties and phase parameters of NN…

核理论 · 物理学 2009-09-25 G. Holzwarth , R. Machleidt

A phase-space excluded-volume approach is developed to investigate the in-medium properties of light clusters in nuclear matter. In this approach, light clusters can exist only if the total nucleon phase-space occupation of the surrounding…

核理论 · 物理学 2026-05-08 Rui Wang , Zhen Zhang , Stefano Burrello , Maria Colonna , Edoardo G. Lanza

The properties of nuclear matter and the structures of neutron stars are analyzed with a baryonic extended linear sigma model in mean-field approximation, where the masses of baryons and mesons are generated via the spontaneous chiral…

核理论 · 物理学 2026-04-20 Yao Ma

Using the relativistic mean-field model with nonlinear couplings between the isoscalar and isovector mesons, we study the properties of isospin-asymmetric nuclear matter. Not only the vector mixing,…

核理论 · 物理学 2022-04-18 Tsuyoshi Miyatsu , Myung-Ki Cheoun , Koichi Saito