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相关论文: Medium modifications of baryon properties in nucle…

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We present a model for the description of nuclear matter and finite nuclei, and at the same time, for the study of medium modifications of nucleon properties. The nucleons are described as nontopological solitons which interact through the…

核理论 · 物理学 2008-11-26 W. Wen , H. Shen

We review the effect of hadron structure changes in a nuclear medium using the quark-meson coupling (QMC) model, which is based on a mean field description of non-overlapping nucleon (or baryon) bags bound by the self-consistent exchange of…

高能物理 - 唯象学 · 物理学 2008-11-26 K. Saito , K. Tsushima , A. W. Thomas

We predict the energy per baryon in nuclear matter with non-zero fraction of $\Lambda$ hyperons. We include Dirac effects on the nucleons as well as the $\Lambda$ and describe how the latter is implemented. We use the nucleon-hyperon…

核理论 · 物理学 2009-04-28 Francesca Sammarruca

Masses of hadrons (baryons as well as mesons) are modified in the nuclear medium because of their interactions. In this paper we investigate the effect of in-medium meson masses on the properties of the nuclear matter. The calculations are…

核理论 · 物理学 2007-05-23 Abhijit Bhattacharya , Sanjay K. Ghosh , S. C. Phatak

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

A system of nontopological solitons interacting through scalar and vector meson exchange is used to model nuclear matter. The models studied are of the Friedberg-Lee type, which exhibit dynamical bag formation due to the coupling of quarks…

核理论 · 物理学 2007-05-23 Nir Barnea , Timothy S. Walhout

The quark-meson coupling model, based on a mean-field description of non-overlapping nucleon bags bound by the self-consistent exchange of $\sigma$, $\omega$ and $\rho$ mesons, is extended to investigate the change of hadron properties in…

核理论 · 物理学 2008-11-26 K. Saito , K. Tsushima , A. W. Thomas

There is evidence that the properties of hadrons are modified in a nuclear medium. Information about the medium modifications of the internal structure of hadrons is fundamental for the study of dense nuclear matter and high-energy…

核理论 · 物理学 2025-05-09 G. Ramalho , K. Tsushima , Myung-Ki Cheoun

The study focuses on exploring the changes in the hyperon-baryon interaction at various nuclear densities. This approach starts by building a vacuum hyperon-nucleon interaction model based on Boson -Exchange maintaining SU(3) flavor…

核理论 · 物理学 2022-11-30 Madhumita Dhar , Horst Lenske

Changes of baryon properties in nuclear matter are investigated within the framework of an in-medium modified SU(3) Skyrme model. Introducing the medium functionals in the SU(2) sector and considering the alteration of kaon properties in…

核理论 · 物理学 2018-11-06 Ki-Hoon Hong , Ulugbek Yakhshiev , Hyun-Chul Kim

The effect of changes in hadron properties in a nuclear medium on physical observables is discussed. Highlighted results are, (1) hypernuclei, (2) meosn-nuclear bound states, (3) $K$-meson production in heavy ion collisions, and (4)…

高能物理 - 唯象学 · 物理学 2017-08-23 K. Tsushima

We discuss the properties of baryons within the framework of the in-medium modified SU(3) Skyrme model. The modification is performed by a minimal way, the medium functionals in the SU(2) sector being introduced. These functionals are then…

核理论 · 物理学 2019-04-03 Ki-Hoon Hong , Ulugbek Yakhshiev , Hyun-Chul Kim

Using a self-consistent quark model for nuclear matter we investigate variations of the masses of the non-strange vector mesons, the hyperons and the nucleon in dense nuclear matter (up to four times the normal nuclear density). We find…

核理论 · 物理学 2008-11-26 K. Saito , A. W. Thomas

Using a self-consistent, Hartree description for both infinite nuclear matter and finite nuclei based on a relativistic quark model (the quark-meson coupling model), we investigate the variation of the masses of the non-strange vector…

核理论 · 物理学 2007-05-23 Koichi Saito , Kazuo Tsushima , Anthony W. Thomas

The chiral version of the QMC model, in which the effect of gluon and pion exchanges is included self-consistently, is applied to the hyperons in a nuclear medium. The hyperfine interaction due to the gluon exchange plays an important role…

核理论 · 物理学 2009-11-03 T. Miyatsu , K. Saito

The improved quark mass density- dependent model, which has been successfully used to describe the properties of both finite nuclei and bulk nuclear matter, is extended to include the strange quark. The parameters of the model are…

核理论 · 物理学 2012-07-03 Chen Wu , Yu-Gang Ma , Wei-Liang Qian , Ru-Keng Su

Properties of $\Lambda,~\Xi^0$ hypernuclei and neutron stars are investigated in quark mean field model with pion and gluon corrections. Firstly, $u, ~d$, and $s$ quarks are confined by relativistic harmonic oscillator potentials to…

核理论 · 物理学 2017-06-07 Xueyong Xing , Jinniu Hu , Hong Shen

Nucleon properties are modified in the nuclear medium. To understand these modifications and their origin is a central issue in nuclear physics. For example, a wide variety of QCD-based models, including quark-meson coupling and…

核实验 · 物理学 2010-12-21 S. Strauch , S. Malace , M. Paolone

Properties of hadrons and their modification within strongly interacting matter provide a link between experimental observables and Quantum Chromodynamics (QCD) in the non-perturbative sector. The sensitivity of various observables to…

Starting with the Strongly Correlated Quark Model of a hadron structure, SCQM, we demonstrate how the properties of mesons and baryons are modified in a hot and dense nuclear environment. These in-medium modifications can lead to the…

核理论 · 物理学 2019-05-01 G. Musulmanbekov
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