PHASE-DIAGRAM OF QCD AT FINITE TEMPERATURES WITH WILSON FERMIONS

被引：17

作者：

IWASAKI, Y

机构：

[1] Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki

来源：

NUCLEAR PHYSICS B | 1995年

关键词：

D O I：

10.1016/0920-5632(95)00191-B

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Phase diagram of QCD with Wilson fermions for various numbers of flavors N-F is discussed. Our simulations mainly performed on a lattice with the temporal size N-t = 4 indicate the following: The chiral phase transition is of first order when 3 less than or equal to N-F less than or equal to 6, while it is continuous when N-F = 2. For the realistic case of massless u and d quarks and the strange quark with m(q) = 150 MeV, the phase transition is first order. The sharp transition in the intermediate mass region for N-F = 2 at N-t = 4 observed by the MILC group disappears when an RG improvement is made for the pure gauge action.

引用

页码：96 / 102

页数：7

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