Can hadrons survive the chiral phase transition ?

Abstract

We study mesonic and baryonic correlation functions in the temporal directions in the vicinity of the critical temperature $T\simeq T_c$ using the instanton liquid model. In this model chiral symmetry restoration is driven by the formation of instanton-antiinstanton molecules. Although we find the signals for all hadronic poles to be drastically reduced, some hadronic states seem to survive the phase transition, as loosely bound $U(N_f)\times U(N_f)$ chiral multiplets in the plasma phase. These states are the $0^{+}-0^{-}$ mesons $(\pi ,\sigma ,{\eta }^{\prime },\delta )$ and the $N({\frac{1}{2}}^{+})-N({\frac{1}{2}}^{-})$ baryons.

11 pages, Latex with epsf macros, 2 uuencoded figures

References in corpus (10)

• Evidence for the Role of Instantons in Hadron Structure from Lattice QCD
• Baryonic Correlation Functions in the Random Instanton Vacuum
• The beta function and equation of state for QCD with two flavors of quarks
• Quark-Induced Correlations between Instantons Drive the Chiral Phase Transition
• The Chiral Phase Transition and Instanton Anti-instanton Molecules
• Can Sigma Models Describe Finite Temperature Chiral Transitions?
• Spatial and Temporal Hadron Correlators below and above the Chiral Phase Transition
• The Instanton Density at Finite Temperatures
• Instanton content of finite temperature QCD matter
• Quark Gluon Plasma from Numerical Simulations of Lattice QCD

Cited by in corpus (12)

• Instantons in QCD
• Why does the Quark-Gluon Plasma at RHIC behave as a nearly ideal fluid ?
• Rethinking the Properties of the Quark-Gluon Plasma at $T\sim T_c$
• Hadronic Modes and Quark Properties in the Quark-Gluon Plasma
• The instanton liquid in QCD at zero and finite temperature
• The \bar q q Bound States and Instanton Molecule at T >~ T_c
• Quark Spectrum above but near Critical Temperature of Chiral Transition
• Hadronic Correlation Functions in the Interacting Instanton Liquid
• Multichannel Approach to Clustering Matter
• A Mean Field Approach To The Instanton-Induced Effect Close To The QCD Phase Transition
• The Instanton Molecule Liquid and "Sticky Molasses" Above T_c
• The Chiral Phase Transition