Abstract
Using Wilson fermions, we study SU(2) lattice QCD with the chemical potential at β = 1.6. The ratio of fermion determinants is evaluated at each Metropolis link update step. We calculate the baryon number density, the Polyakov loops and the pseudoscalar and vector masses on 4 4 and 4 3 × 8 lattices. Preliminary data show the pseudoscalar meson becomes massive around μ = 0.4, which indicates the chiral symmetry restoration. The calculation is broken down when approaching to the transition region. We analyze the behavior of the fermion determinant and eigen value distributions of the determinant, which shows a peculiar “Shell-and-Bean” pattern near the transition.
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