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Quark clustering and chiral symmetry breaking in nuclear matter
(World Scientific Publ Co Pte Ltd, 2003-10-20)
Chiral symmetry breaking at finite baryon density is usually discussed in the context of quark matter, i.e. a system of deconfined quarks. Many systems like stable nuclei and neutron stars however have quarks confined ...
Quark-meson coupling model with constituent quarks: Exchange and pionic effects
(1998-07-30)
The binding energy of nuclear matter including exchange and pionic effects is calculated in a quark-meson coupling model with massive constituent quarks. As in the case with elementary nucleons in QHD, exchange effects are ...
Transport properties and equation of state of quark-nuclear matter
(Sociedade Brasileira de Física, 2003-06-01)
Transport equations for composite nucleons and deconfined quarks in quark-nuclear matter (QNM) are derived. QNM is a many-body system containing hadrons and deconfined quarks. The starting point is a microscopic quark-meson ...
IMPROVED STATISTICAL QCD MODEL FOR THE QUARK CONTENT of THE NUCLEON
(World Scientific Publ Co Pte Ltd, 2010-08-01)
The neutron-to-proton ratio of the structure functions, F(2)(n)/F(2)(p), as well as the corresponding difference F(2)(p)-F(2)(n) are obtained within a statistical quark model for the nucleon, where the quark energy levels ...
Description of Heavy Quark Mass by Lippmann-Schwinger Equation
(Springer/plenum Publishers, 2012-09-01)
Quark masses are of great prominence in high-energy physics. In this paper, we have studied the heavy meson systems via solving the Lippmann-Schwinger equation by using the Martin potential for heavy quark masses. We have ...
D̄N interaction in a color-confining chiral quark model
(2013-02-27)
We investigate the low-energy elastic D̄N interaction using a quark model that confines color and realizes dynamical chiral symmetry breaking. The model is defined by a microscopic Hamiltonian inspired in the QCD Hamiltonian ...
Off-Diagonal Quark Distributions in Pions in the Effective Single-Instanton Approximation
(2000-12-01)
Nonperturbative functions that parametrize off-diagonal hadronic matrix elements of the light-cone leading-twist quark operators are considered. These functions are calculated within the proposed relativistic quark model ...
Second quantization approach to composite hadron interactions in quark models
(1996-01-18)
Starting from the Fock space representation of hadron bound states in a quark model, a change of representation is implemented by a unitary transformation such that the composite hadrons are redescribed by elementary-particle ...
Quark matter in a QCD Coulomb gauge quark model
(Sociedade Brasileira de Física, 2005-09-01)
In this communication we present results of a study of chiral symmetry in quark matter using an effective Coulomb gauge QCD Hamiltonian. QCD in Coulomb gauge is convenient for a variational approach based on a quasiparticle ...
Quark-antiquark correlation in the pion
(1997-09-22)
The electromagnetic tensor for inclusive electron scattering off the pion Wμν for momentum transfers such that q+ = 0, (q+ = q0 + q3) is shown to obey a sum-rule for the component W++. From this sum-rule, one can define ...