Chirally symmetric and confining dense matter with a diffused quark Fermi surface

Abstract

It is possible that at low temperatures and large density there exists a confining matter with restored chiral symmetry, just after the dense nuclear matter with broken chiral symmetry. Such a phase has sofar been studied within a confining and chirally symmetric model assuming a rigid quark Fermi surface. In the confining quarkyonic matter, however, near the Fermi surface quarks group into color-singlet baryons. Interaction between quarks leads to a diffusion of the quark Fermi surface. Here we study effects of such diffusion and verify that it does not destroy a possible existence of a confining but chirally symmetric matter at low temperatures.

7 pp

References in corpus (11)

• The phase boundary for the chiral transition in (2+1)-flavor QCD at small values of the chemical potential
• The QCD phase diagram at nonzero quark density
• Restoration of chiral and $U(1{)}_A$ symmetries in excited hadrons
• Chirally symmetric but confining dense and cold matter
• Unbreaking chiral symmetry
• Chiral symmetry patterns of excited mesons with the Coulomb-like linear confinement
• Coulomb-gauge ghost and gluon propagators in SU(3) lattice Yang-Mills theory
• Alternative experimental evidence for chiral restoration in excited baryons
• Effective restoration of chiral symmetry in excited mesons
• Probing the infrared quark mass from highly excited baryons
• Chiral symmetry and excited baryons

Cited by in corpus (2)

• Symmetries of hadrons after unbreaking the chiral symmetry
• Chiral restoration phase transition within the quarkyonic matter