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One of the most intriguing consequence of the extreme conditions inside neutron stars is the possibility of the natural existence of a deconfined strange quark matter phase in the high density interior of the star. The equation of state…

Astrophysics · Physics 2007-05-23 K. Schertler , C. Greiner , M. H. Thoma

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…

Nuclear Experiment · Physics 2010-12-21 S. Strauch , S. Malace , M. Paolone

A linear correlation is shown quantitatively between the magnitude of the EMC effect measured in electron deep inelastic scattering (DIS) and the nuclear residual strong interaction energy (RSIE) obtained from nuclear binding energy…

Nuclear Theory · Physics 2015-03-31 Rong Wang , Xurong Chen

We study the effect of the density-dependent axial and vector form factors on the electro-neutrino ($\nu_e$) and anti-neutrino $({\bar \nu}_e)$ reactions for a nucleon in nuclear matter or in $^{12}$C. The nucleon form factors in free space…

An extended quark mass density- and temperature- dependent model which includes the couplings between quarks and the sigma-mesons, omega-mesons is suggested. The MIT bag boundary constrain has been given up and the interactions between…

Nuclear Theory · Physics 2007-05-23 Wei Liang Qian , Ru-Keng Su

High energy lepton scattering has been the primary tool for mapping out the quark distributions of nucleons and nuclei. Data on the proton and deuteron have shown that there is a fundamental connection between the low and high energy…

Nuclear Experiment · Physics 2014-11-18 J. Arrington , R. Ent , C. E. Keppel , J. Mammei , I. Niculescu

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…

Nuclear Theory · Physics 2007-05-23 Nir Barnea , Timothy S. Walhout

Recent data for the slope of the EMC-ratio in the intermediate $x$-region for {\em light} nuclei, with $3 \leq A \leq 12$, have the potential to shed new light on the origin of the EMC effect. Here we study the role of nuclear binding using…

Nuclear Theory · Physics 2012-07-20 Omar Benhar , Ingo SIck

A Quark-Meson Coupling (QMC) model is extended to finite nuclei in the relativistic mean-field or Hartree approximation. The ultra-relativistic quarks are assumed to be bound in non-overlapping nucleon bags, and the interaction between…

Nuclear Theory · Physics 2008-11-26 Peter G. Blunden , Gerald A. Miller

We study the bound nucleon sigma term and the quark condensate in nuclear matter. In the quark-meson coupling (QMC) model the nuclear correction to the sigma term is small and negative, i.e., it decelerates the decrease of the quark…

Nuclear Theory · Physics 2008-11-26 K. Tsushima , K. Saito , A. W. Thomas , A. Valcarce

The stability of magnetized strange quark matter (MSQM) is studied in the MIT bag model with the density dependent bag pressure. In the consistent thermodynamic description of MSQM, the quark chemical potentials, the total thermodynamic…

High Energy Physics - Phenomenology · Physics 2015-02-03 A. A. Isayev

Effect of bound nucleon internal structure change on nuclear structure functions is investigated based on local quark-hadron duality. The bound nucleon structure functions calculated for charged-lepton and (anti)neutrino scattering are all…

High Energy Physics - Phenomenology · Physics 2014-11-18 K. Tsushima , K. Saito , F. M. Steffens

The nucleon form factors in free space are usually thought to be modified when a nucleon is bound in a nucleus or immersed in a nuclear medium. We investigate effects of the density-dependent axial and weak-vector form factors on the…

We explore the equation of state for nuclear matter in the quark-meson coupling model, including full Fock terms. The comparison with phenomenological constraints can be used to restrict the few additional parameters appearing in the Fock…

Nuclear Theory · Physics 2015-11-30 D. L. Whittenbury , J. D. Carroll , A. W. Thomas , K. Tsushima , J. R. Stone

The persistently mysterious deviations from unity of the ratio of nuclear target structure functions to those of deuterium as measured in deep inelastic scattering (often termed the "EMC Effect") have become the canonical observable for…

Nuclear Experiment · Physics 2021-01-20 H. Szumila-Vance , C. Keppel , S. Escalante , N. Kalantarians

In light of the forthcoming high precision quasielastic electron scattering data from Jefferson Lab, it is timely for the various approaches to nuclear structure to make robust predictions for the associated response functions. With this in…

Nuclear Theory · Physics 2016-01-27 Ian C. Cloët , Wolfgang Bentz , Anthony W. Thomas

Short-range quark-quark correlations are introduced into the quark-meson coupling (QMC) model phenomenologically. We study the effect of the correlations on the structure of the nucleon in dense nuclear matter. With the addition of…

Nuclear Theory · Physics 2009-11-06 Koichi Saito , Kazuo Tsushima

In-medium nucleon electromagnetic form factors are calculated in the quark meson coupling model. The form factors are typically found to be suppressed as the density increases. For example, at normal nuclear density and $Q^2 \sim 0.3 {…

Nuclear Theory · Physics 2008-11-26 D. H. Lu , A. W. Thomas , K. Tsushima , A. G. Williams , K. Saito

Our model calculations performed in the frame of the Relativistic Mean Field (RMF) approach show how important are the modifications of nucleon Structure Function (SF) in Nuclear Matter (NM) above the saturation point. They originated from…

Nuclear Theory · Physics 2012-05-04 J. Rożynek

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…