Relativistic Model of Triquark Structure (2005)
Li, Hu, Shakin, C. M., Li, Xiangdong
At this point it is still unclear whether pentaquarks exist. While they have be seen in some experiments there are many experiments in which they are not found. On the assumption that pentaquarks...
Relativistic Calculation of Pentaquark Widths (2005)
Li, Hu, Shakin, C. M., Li, Xiangdong
We calculate the widths of the various pentaquarks in a relativistic model in which the pentaquark is considered to be composed of a scalar diquark and a spin 1/2 triquark. We consider both positive...
Relativistic Calculation of the Width of the Theta (1540) Pentaquark (2005)
Li, Hu, Shakin, C. M., Li, Xiangdong
We calculate the width of the Theta(1540) pentaquark in a relativistic model in which the pentaquark is considered to be composed of a scalar diquark and a spin 1/2 triquark. We consider both...
Excitations of the Quark- Gluon Plasma (2004)
Shakin, C. M., Wang, Huangsheng, Sun, Qing, Li, Hu Li Xiangdong
We will discuss the spectrum of the eta mesons making use of the Nambu-Jona-Lasinio (NJL) model supplemented with a model of confinement. We will go on to discuss the properties of mesons at finite...
Quark Propagation in the Presence of a A_\mu^aA_a^\mu> Condensate (2004)
There is a good deal of current interest in the condensate g^2A_\mu^aA_a^\mu> which has recently be shown to be the Landau gauge version of a more general gauge-invariant expression. In the present...
Comparison of Models of Critical Opacity in the Quark-Gluon Plasma (2004)
In this work we discuss two methods of calculation of quark propagation in the quark-gluon plasma. Both methods make use of the Nambu-Jona-Lasinio model. The essential difference of these...
Li, Xiangdong, Li, Hu, Shakin, C. M., Sun, Qing, Wang, Huangsheng
We have calculated spectral functions associated with hadronic current correlation functions for vector currents at finite temperature. We made use of a model with chiral symmetry,...
Calculation of Screening Masses in a Chiral Quark Model (2004)
Li, Xiangdong, Li, Hu, Shakin, C. M., Sun, Qing
We consider a simple model for the coordinate-space vacuum polarization function which is often parametrized in terms of a screening mass. We discuss the circumstances in which the standard result...
Quark Propagation in the Quark-Gluon Plasma (2004)
Li, Xiangdong, Li, Hu, Shakin, C. M., Sun, Qing
It has recently been suggested that the quark-gluon plasma formed in heavy-ion collisions behaves as a nearly ideal fluid. That behavior may be understood if the quark and antiquark mean-free- paths...
Li, Xiangdong, Li, Hu, Shakin, C. M., Sun, Qing, Wang, Huangsheng
We calculate spectral functions associated with hadronic current correlation functions for vector currents at finite temperature. We make use of a model with chiral symmetry, temperature-dependent...
Li, Hu, Shakin, C. M., Sun, Qing
We calculate spectral functions associated with hadronic current correlation functions for vector and pseudoscalar currents at finite temperature. We make use of the Nambu--Jona--Lasinio (NJL) model...
He, Bing, Li, Hu, Shakin, C. M., Sun, Qing
The Euclidean-time hadronic current correlation functions, $G_P(\tau, T)$ and $G_V(\tau, T)$, of pseudoscalar and vector currents have recently been calculated in lattice simulations of QCD and have...
He, Bing, Li, Hu, Shakin, C. M., Sun, Qing
We make use of the Nambu-Jona-Lasinio (NJL) formalism and real-time finite-temperature field theory to calculate hadronic current correlation functions in the deconfined phase of quantum...
Calculation of the Excitations of Dense Quark Matter at Zero Temperature (2002)
He, Bing, Li, Hu, Shakin, C. M., Sun, Qing
Recently there has been a great deal of interest in studying the properties of dense quark matter, with particular reference to diquark condensates and color superconductivity. In the present work we...
He, Bing, Li, Hu, Shakin, C. M., Sun, Qing
We report the results of calculations of pseudoscalar-isoscalar hadronic current correlators using the Nambu--Jona-Lasinio model and the real-time finite-temperature formalism. Results are presented...
Calculation of Hadronic Excitations of the Quark-Gluon Plasma (2002)
We present calculations of the spectral functions of various hadronic current correlators at finite temperature, making use of the Nambu--Jona-Lasinio (NJL) model and the real-time finite-temperature...
Chiral Symmetry Restoration and Deconfinement of Light Mesons at Finite Temperature (2002)
There has been a great deal of interest in understanding the properties of quantum chromodynamics (QCD) for a finite value of the chemical potential and for finite temperature. Studies have been made...
Recent years have seen extensive applications of the Nambu--Jona-Lasinio (NJL) model in the study of matter at high density. There is a good deal of interest in the predictions of diquark...
Quark and Nucleon Self-Energy in Dense Matter (2002)
Celenza, L. S., Li, Hu, Shakin, C. M., Sun, Qing
In a recent work we introduced a nonlocal version of the Nambu--Jona-Lasinio(NJL) model that was designed to generate a quark self-energy in Euclidean space that was similar to that obtained in...
Quark Condensates and Momentum-Dependent Quark Masses in a Nonlocal Nambu--Jona-Lasinio Model (2002)
He, Bing, Li, Hu, Sun, Qing, Shakin, C. M.
The Nambu--Jona-Lasinio (NJL) model has been extensively studied by many researchers. In previous work we have generalized the NJL model to include a covariant model of confinement. In the present...
Magnitude of chiral fields in nuclei: meson-nucleon vertex corrections for composite nucleons (1995)
Chiral symmetry in nuclear physics: a physical interpretation of correlated two-pion exchange (1995)