Chiral transition of fundamental and adjoint quarks
arXiv:1310.7132 · doi:10.1016/j.physletb.2013.12.042
Abstract
The chiral symmetry breaking transition of quarks in the fundamental and adjoint representation is studied in a model where the gap equation contains two contributions, one containing a confining propagator and another corresponding to the exchange of one-dressed dynamically massive gluons. When quarks are in the fundamental representation the confinement effect dominates the chiral symmetry breaking while the gluon exchange is suppressed due to the dynamical gluon mass effect in the propagator and coupling constant. In this case the chiral and deconfinement transition temperatures are approximately the same. For quarks in the adjoint representation, due to the larger Casimir eigenvalue, the gluon exchange is operative and the chiral transition happens at a larger temperature than the deconfinement one.
12 pages, 1 figure, improved discussion
References in corpus (14)
- The order of the quantum chromodynamics transition predicted by the standard model of particle physics
- The QCD transition temperature: results with physical masses in the continuum limit II.
- Equation of state and QCD transition at finite temperature
- Gluon and ghost propagators in the Landau gauge: Deriving lattice results from Schwinger-Dyson equations
- Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared
- Constraints on the IR behavior of the gluon propagator in Yang-Mills theories
- Pinch Technique: Theory and Applications
- Quark flavour effects on gluon and ghost propagators
- Entropy, confinement, and chiral symmetry breaking
- Gluon mass generation in the presence of dynamical quarks
- Center vortices and the quark propagator in SU(2) gauge theory
- Adjoint quarks and fermionic boundary conditions
- Center vortices, the functional Schrodinger equation, and CSB
- Entropy in quantum chromodynamics