Quarkyonic Matter and the Large $N_c$ Limit of QCD
Larry McLerran
Wed, Feb. 25th 2009, 14:15
Salle Claude Itzykson, Bât. 774, Orme des Merisiers
I argue that in addition to the confined and de-confined phase of QCD, there may be a third confined phase of high density baryonic matter which may exist up to energy densities of order $N_c^2$ times that of $\Lambda_{QCD}^4$. In the large $N_c$ limit, the three phases are characterized by baryon number density and confinement. The quarkyonic phase consists of a quasi-free fermi gas of quarks and confined mesons and glueballs. I argue this from general considerations in large $N_c$, and also show it explicitly in a Polyakov loop, NJL model. I conjecture possible relationships between chiral symmetry restoration and the quarkyonic phase.
Contact : mcirelli


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