Scaling of pseudocritical couplings in two flavor QCD

Sep, 1993
8 pages
Published in:
  • Phys.Rev.D 49 (1994) 3791-3794
e-Print:
Report number:
  • HLRZ-93-62,
  • BI-TP-93-50,
  • NSF-ITP-93-121

Citations per year

19931999200520112017024681012
Abstract:
We study the scaling behaviour of the pseudo-critical couplings for the chiral phase transition in two-flavour QCD. We show that all existing results from lattice simulations on lattices with temporal extent Nτ=4N_\tau = 4, 6 and 8 can be mapped onto a universal scaling curve. The relevant combination of critical exponents, βδ\beta\delta, is consistent with the scaling behaviour expected for a second order phase transition with O(4)O(4) exponents. At present, scaling according to the O(2)O(2) symmetry group can, however, not be ruled out.
  • gauge field theory: SU(3)
  • flavor: 2
  • critical phenomena: chiral
  • coupling: scaling
  • scaling: coupling
  • fermion: lattice field theory
  • symmetry: O(4)
  • symmetry: O(2)
  • numerical calculations: Monte Carlo