Calculation of screening masses in a chiral quark model
نویسندگان
چکیده
منابع مشابه
Calculation of Screening Masses in a Chiral Quark Model
Hu Li, C. M. Shakin,∗ and Qing Sun Department of Physics and Center for Nuclear Theory Brooklyn College of the City University of New York Brooklyn, New York 11210 (Dated: May, 2004) Abstract 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 for the ...
متن کاملQuark masses and chiral symmetry.
I discuss the global structure of the strongly interacting gauge theory of quarks and gluons as a function of the quark masses and the CP violating parameter. I concentrate on whether a rst order phase transition occurs at = : I show why this is expected when multiple avors have a small degenerate mass. This transition can be removed by suucient avor-breaking. I speculate on the implications of...
متن کاملGround-state baryon masses in the perturbative chiral quark model
Mass differences of the flavor octet and decuplet ground-state baryons are studied in the perturbative chiral quark model. We present a way to understand the nontrivial spinand flavor dependent mass differences, where both pseudoscalar mesons and gluons play a significant role. PACS: 12.39.Ki, 12.40.Yx, 14.20.Dh, 14.20.Gk
متن کاملLattice calculation of gluon screening masses
We study SU(3) gluon electric and magnetic masses at finite temperatures using quenched lattice QCD on a 2033236 lattice. We focus on temperature regions between T5Tc and 6Tc , which are realized in BNL Relativistic Heavy Ion Collider and CERN Large Hadron Collider experiments. Stochastic quantization with a gauge-fixing term is employed to calculate gluon propagators. The temperature dependenc...
متن کاملChiral Quark Model
Abstract. In this talk I review studies of hadron properties in bosonized chiral quark models for the quark flavor dynamics. Mesons are constructed from Bethe–Salpeter equations and baryons emerge as chiral solitons. Such models require regularization and I show that the two–fold Pauli–Villars regularization scheme not only fully regularizes the effective action but also leads the scaling laws ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2004
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.70.048201