QCD有効理論をもちいたカイラル相転移の研究(有効作用、くりこみ群,多体系の場の理論の新展開,研究会報告)
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概要
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The chiral phase transition at finite temperature and/or chemical potential is studied. We calculate an effective potential for QCD in the improved ladder approximation and study the phase structure. We have a second-order phase transition at T_c = 129 MeV for μ = 0 and a first-order one at μ_c = 422 MeV for T = 0. A tricritical point in the T-μ plane is found at T = 107 MeV, μ = 210 MeV.
- 2000-10-20