Enforced neutrality and color-flavor unlocking in the three-flavor Polyakov-loop NJL model

Details Enforced neutrality and color-flavor unlocking in the three-flavor Polyakov-loop NJL model Enforced neutrality and color-flavor unlocking in the three-flavor Polyakov-loop NJL model

2008-02-17

arxiv.org/abs/0802.2396v2

Phys.Rev.D77:074018,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, REVTex4, 10 eps figures; v2: added two notes, added a reference; version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.77.074018

We study how the charge neutrality affects the phase structure of three-flavor PNJL model. We point out that, within the conventional PNJL model at finite density the color neutrality is missing because the Wilson line serves as an external ``colored'' field coupled to dynamical quarks. In this paper we heuristically assume that the model may still be applicable. To get color neutrality one has then to allow non vanishing color chemical potentials. We study how the quark matter phase diagram in $(T,m_s^2/\mu)$-plane is affected by imposing neutrality and by including the Polyakov loop dynamics. Although these two effects are correlated in a nonlinear way, the impact of the Polyakov loop turns out to be significant in the $T$ direction, while imposing neutrality brings a remarkable effect in the $m_s^2/\mu$ direction. In particular, we find a novel unlocking transition, when the temperature is increased, even in the chiral SU(3) limit. We clarify how and why this is possible once the dynamics of the colored Polyakov loop is taken into account. Also we succeed in giving an analytic expression for $T_c$ for the transition from two-flavor pairing (2SC) to unpaired quark matter in the presence of the Polyakov loop.

Affiliated with

Also associated with

No associations

Rating

Enforced neutrality and color-flavor unlocking in the three-flavor Polyakov-loop NJL model 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 Enforced neutrality and color-flavor unlocking in the three-flavor Polyakov-loop NJL model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enforced neutrality and color-flavor unlocking in the three-flavor Polyakov-loop NJL model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-197232