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Related papers: Quark-meson coupling model with the cloudy bag

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The properties of the kaon, $K$, and antikaon, $\kbar$, in nuclear medium are studied in the quark-meson coupling (QMC) model. Employing a constituent quark-antiquark (MIT bag model) picture, their excitation energies in a nuclear medium at…

Nuclear Theory · Physics 2010-02-17 K. Tsushima , K. Saito , A. W. Thomas , S. V. Wright

The Quark Meson Coupling Model which describes nuclear matter as a collection of non-overlapping MIT bags interacting by the self-consistent exchange of scalar and vector mesons is used to study nuclear matter at finite temperature. In its…

Nuclear Theory · Physics 2009-10-31 I. Zakout , H. R. Jaqaman

We propose the new quark mean-field bag (QMFB) model by incorporating the bag confinement mechanism in the original quark mean-field model. Nuclear matter and neutron star properties are studied with the QMFB model. For the study of the bag…

Nuclear Theory · Physics 2019-02-20 Zhen-Yu Zhu , Ang Li , Jin-Niu Hu , Hong Shen

The Quark-Meson Coupling (QMC) model establishes a self-consistent relationship between the quark structure dynamics of a nucleon and the relativistic mean fields that arise within the nuclear medium. The model has been successful in…

The pion properties in symmetric nuclear matter are investigated with the Quark-Meson Coupling (QMC) Model plus the light-front constituent quark model~(LFCQM). The LFCQM has been quite successful in describing the properties of…

High Energy Physics - Phenomenology · Physics 2016-06-22 J. P. B. C. de Melo , Kazuo Tsushima , Tobias Frederico

Excluded volume effects are incorporated in the quark meson coupling model to take into account in a phenomenological way the hard core repulsion of the nuclear force. The formalism employed is thermodynamically consistent and does not…

Nuclear Theory · Physics 2009-11-07 P. K. Panda , M. E. Bracco , M. Chiapparini , E. Conte , G. Krein

The quark-meson coupling (QMC) model, which has been successfully used to describe the properties of both infinite nuclear matter and finite nuclei, is applied to a systematic study of $\Lambda, \Sigma$ and $\Xi$ hypernuclei. Assumptions…

Nuclear Theory · Physics 2010-02-17 K. Tsushima , K. Saito , J. Haidenbauer , A. W. Thomas

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…

Nuclear Theory · Physics 2009-11-07 P. K. Panda , F. L. Braghin

We study the effects of strong magnetic fields on antikaon condensation in neutron star matter using the quark-meson coupling (QMC) model. The QMC model describes a nuclear many-body system as nonoverlapping MIT bags in which quarks…

Nuclear Theory · Physics 2008-11-26 P. Yue , H. Shen

The modified quark-meson coupling model, which features a density dependent bag constant and bag radius in nuclear matter, is checked against the EMC effect within the framework of dynamical rescaling. Our emphasis is on the change in the…

Nuclear Theory · Physics 2008-11-26 Xuemin Jin , B. K. Jennings

We study hot nuclear matter in an explicit quark model based on a mean field description of nonoverlapping nucleon bags bound by the self-consistent exchange of scalar and vector mesons as well as the glueball field. The glueball exchange…

Nuclear Theory · Physics 2009-10-31 I. Zakout , H. R. Jaqaman

The long range structure of the nucleon is discussed starting from the old model of a quark bag with a pion cloud (``cloudy bag'') carrying on to the more recent ideas of the parton model of the nucleon. On the basis of the most recent…

High Energy Physics - Phenomenology · Physics 2010-08-26 Marc Vanderhaeghen , Thomas Walcher

We investigate quarkyonic matter within a relativistic quark model by combining the dual quarkyonic picture with the quark-meson coupling (QMC) model. Using relativistic gaussian quark wavefunctions for the nucleon, we construct the…

Nuclear Theory · Physics 2026-03-27 Tsuyoshi Miyatsu , Myung-Ki Cheoun , Koichi Saito

We explore the meson cloud contribution to nucleon electromagnetic form factors in dispersion relation approach. In our calculations, experimental data on transition amplitudes for pion-nucleon scatterings are taken directly as inputs, with…

High Energy Physics - Phenomenology · Physics 2024-09-27 Ek-ong Atthaphan , Attaphon Kaewsnod , Kai Xu , Moh Moh Aung , Warintorn Sreethawong , Ayut Limphirat , Yupeng Yan

It is known now that chiral symmetry restoration requires the meson-nucleon coupling to be density dependent in nuclear-matter mean-field models. We further show that quite generally, the quark and gluon condensates in medium are related to…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Malheiro , Mira Dey , A. Delfino , Jishnu Dey

Using the quark-meson coupling model, we study the longitudinal response function for quasielastic electron scattering from nuclear matter within relativistic RPA. In QMC the coupling constant between the scalar meson and the nucleon is…

Nuclear Theory · Physics 2009-11-06 K. Saito

Possible variations of the quark-meson coupling (QMC) model are examined in which the bag constant decreases in the nuclear medium. The reduction is supposed to depend on either the mean scalar field or the effective mass of the nucleon. It…

Nuclear Theory · Physics 2010-02-17 D. H. Lu , K. Tsushima , A. W. Thomas , A. G. Williams , K. Saito

We give a short review of the quark-meson coupling (QMC) model, the quark-based model of finite nuclei and hadron interactions in a nuclear medium, highlighting on the relationship with the Skyrme effective nuclear forces. The model is…

Nuclear Theory · Physics 2020-01-01 K. Tsushima

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 reviewed. In particular, I present the changes in the hadron…

Nuclear Theory · Physics 2007-05-23 Koichi Saito

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…

Nuclear Theory · Physics 2009-11-03 T. Miyatsu , K. Saito