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Quark light cone momentum distributions in nuclear matter and the structure function of a bound nucleon are investigated in the framework of the Nambu-Jona-Lasinio model. This framework describes the nucleon as a relativistic quark-diquark…

核理论 · 物理学 2010-02-17 H. Mineo , W. Bentz , N. Ishii , A. W. Thomas , K. Yazaki

We unite the dual quarkyonic model with the quark-meson coupling (QMC) model to construct a novel nuclear model based on the quark degrees of freedom, which can cover a wide range of nuclear density from low density to the crossover region.…

核理论 · 物理学 2025-12-05 Koichi Saito , Tsuyoshi Miyatsu , Myung-Ki Cheoun

We investigate the medium modification of the generalized vector form factors of the nucleon, which include the electromagnetic and energy-momentum tensor form factors, based on an in-medium modified $\pi$-$\rho$-$\omega$ soliton model. We…

高能物理 - 唯象学 · 物理学 2016-03-23 Ju-Hyun Jung , Ulugbek Yakhshiev , Hyun-Chul Kim

The improved quark mass density- dependent model which includes the coupling between the quarks and a non-linear scalar field is presented. Numerical analysis of solutions of the model is performed over a wide range of parameters. The wave…

核理论 · 物理学 2009-11-11 Chen Wu , Wei Liang Qian , Ru-Keng Su

The relationship between medium modifications of nucleon electromagnetic form factors and nucleon structure functions is examined using a model motivated by Light-Front Holographic QCD (LFHQCD). These modifications are closely connected…

核理论 · 物理学 2024-05-02 Dmitriy N. Kim , Or Hen , Gerald A. Miller , E. Piasetzky , M. Strikman , L. Weinstein

Short-range quark-quark correlations in hot nuclear matter are examined within the modified quark-meson coupling model (MQMC) by adding repulsive scalar and vector quark-quark interactions. Without these correlations, the bag radius…

核理论 · 物理学 2008-11-26 I. Zakout , H. R. Jaqaman

The form factors of the energy-momentum tensor can be accessed via studies of generalized parton distributions in hard exclusive reactions. In this talk we present recent results on the energy-momentum tensor form factors and densities in…

高能物理 - 唯象学 · 物理学 2019-07-30 M. J. Neubelt , A. Sampino , J. Hudson , K. Tezgin , P. Schweitzer

The Quark--Meson--Coupling (QMC) model self-consistently relates the dynamics of the internal quark structure of a hadron to the relativistic mean fields arising in nuclear matter. It offers a natural explanation to some open questions in…

Recent observations of massive pulsars having masses of the order of two solar mass pose a new challenge for compact objects such as hybrid stars and neutron stars. Extensions of the bag model and the Nambu-Jona-Lasino model have been used…

核理论 · 物理学 2021-08-05 Salil Joshi , Sovan Sau , Soma Sanyal

The properties of nuclear matter and finite nuclei are studied within the quark mean field (QMF) model by taking the effects of pion and gluon into account at the quark level. The nucleon is described as the combination of three constituent…

核理论 · 物理学 2016-11-10 Xueyong Xing , Jinniu Hu , Hong Shen

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

The most recent development of the quark-meson coupling (QMC) model, in which the effect of the mean scalar field in-medium on the hyperfine interaction is also included self-consistently, is used to compute the properties of finite…

核理论 · 物理学 2009-06-19 Pierre A. M. Guichon , Anthony W. Thomas , Kazuo Tsushima

It should be a typical subject in this workshop to explore possible change of hadron properties in association with that of QCD vacuum due to an environmental change. In this report, we first summarize what hadrons are expected to show such…

核理论 · 物理学 2009-09-25 Teiji Kunihiro

At the ultra-high densities existing in the core of neutron stars, it is expected that a phase transition from baryonic to deconfined quark matter may occur. Such a phase transition would affect the underlying equation of state (EoS) as…

高能天体物理现象 · 物理学 2023-12-15 Swarnim Shirke , Suprovo Ghosh , Debarati Chatterjee

The measurements of inclusive electron scattering from nuclear targets carried out at the Thomas Jefferson National Accelerator Facility in the mid 2000s have provided valuable novel information on the $A$-dependence of the modifications of…

核理论 · 物理学 2026-04-06 Omar Benhar , Alessandro Lovato

We investigate meson's spectrum, decay constant and form factor in a nuclear medium through holographic two- and three-point correlation functions. To describe a nuclear medium composed of protons and neutrons, we consider a hard wall model…

高能物理 - 理论 · 物理学 2016-08-03 Chanyong Park

The EMC effect in deuterium and helium-3 is studied using a convolution formalism that allows isolating the impact of high-momentum nucleons in short-ranged correlated (SRC) pairs. We assume that the modification of the structure function…

The Bessel-inspired behavior of parton densities at small Bjorken $x$ values, obtained in the case of the flat initial conditions for DGLAP evolution equations, is used along with "frozen" and analytic modifications of the strong coupling…

高能物理 - 唯象学 · 物理学 2017-12-13 A. V. Kotikov , B. G. Shaikhatdenov , Pengming Zhang

We study nuclear symmetry energy and the thermodynamic instabilities of asymmetric nuclear matter in a self-consistent manner by using a modified quark-meson coupling model where the confining interaction for quarks inside a nucleon is…

核理论 · 物理学 2015-12-16 R. N. Mishra , H. S. Sahoo , P. K. Panda , N. Barik , T. Frederico

We derive the equation of state of nuclear matter including vacuum polarization effects arising from the nucleons and the sigma mesons in the quark-meson coupling model which incorporates explicitly quark degrees of freedom with quark…

核理论 · 物理学 2009-11-07 P. K. Panda , F. L. Braghin