Baryon formation and dissociation in dense hadronic and quark matter

Understand

We study the formation of baryons as composed of quarks and diquarks in hot and dense hadronic matter in a Nambu--Jona-Lasinio (NJL)--type model.

• We first solve the Dyson-Schwinger equation for the diquark propagator and then use this to solve the Dyson-Schwinger equation for the baryon propagator.
• We find that stable baryon resonances exist only in the phase of broken chiral symmetry.
• In the chirally symmetric phase, we do not find a pole in the baryon propagator.