Ladder QCD at finite isospin chemical potential

Apr, 2003
12 pages
Published in:
  • Phys.Lett.B 564 (2003) 217-224
e-Print:
Report number:
  • CERN-TH-2003-081,
  • FIRENZE-DFF-402-03-2003

Citations per year

20032008201320182023024681012
Abstract:
We use an effective QCD model (ladder-QCD) to explore the phase diagram for chiral symmetry breaking and restoration at finite temperature with different u,du,d quark chemical potentials. In agreement with a recent investigation based on the Nambu-Jona-Lasinio model, we find that a finite pion condensate shows up for high enough isospin chemical potential μI=(μuμd)/2\mu_{I}=(\mu_{u}-\mu_{d})/2. For small μI\mu_{I} the phase diagram in the (μB,T)(\mu_B,T) plane shows two first order transition lines and two critical ending points.
Note:
  • Typed in RevTex4, pages 12, figures 2. Two references added Report-no: CERN-TH/2003-081
  • 11.10.Wx
  • 12.38.-t
  • 25.75.Nq
  • quantum chromodynamics
  • ladder approximation
  • critical phenomena
  • symmetry breaking: chiral
  • finite temperature
  • potential: chemical
  • isospin