Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-10-15
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 4 figures, Presented at Workshop on QCD Down Under, Barossa Valley and Adelaide, Australia, 10-19 Mar 2004
Scientific paper
10.1016/j.nuclphysbps.2004.12.02
Dynamical chiral-symmetry breaking in QCD is studied with the Schwinger-Dyson (SD) formalism based on lattice QCD data, i.e., LQCD-based SD formalism. We extract the SD kernel function $K(p^2)$ in an Ansatz-independent manner from the lattice data of the quark propagator in the Landau gauge. As remarkable features, we find infrared vanishing and intermediate enhancement of the SD kernel function $K(p^2)$. We apply the LQCD-based SD equation to thermal QCD with the quark chemical potential $\mu_q$. We find chiral symmetry restoration at $T_c \simeq 100{\rm MeV}$ for $\mu_q=0$. The real part of the quark mass function decreases as $T$ and $\mu_q$. At finite density, there appears the imaginary part of the quark mass function, which would lead to the width broadening of hadrons.
Iida Hideaki
Oka Makoto
Suganuma Hideo
No associations
LandOfFree
Lattice-QCD based Schwinger-Dyson approach for Chiral Phase Transition does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Lattice-QCD based Schwinger-Dyson approach for Chiral Phase Transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lattice-QCD based Schwinger-Dyson approach for Chiral Phase Transition will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-289937