Responses of hadrons to the chemical potential at finite temperature -: art. no. 054501

被引：43

作者：

Choe, S ^{[1
]}

de Forcrand, P

Pérez, MG

Hioki, S

Liu, Y

Matsufuru, H

Miyamura, O

Nakamura, A

Stamatescu, IO

Takaishi, T

Umeda, T

机构：

[1] Hiroshima Univ, Dept Phys, Higashihiroshima 7398526, Japan

[2] ETH Honggerberg, Inst Theoret Phys, CH-8093 Zurich, Switzerland

[3] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[4] Tezukayama Gakuin Univ, Dept Phys, Nara 6318501, Japan

[5] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[6] Hiroshima Univ, IMC, Higashihiroshima 7398521, Japan

[7] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany

[8] FEST, D-69118 Heidelberg, Germany

[9] Hiroshima Univ Econ, Hiroshima 7310192, Japan

[10] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 3058577, Japan

来源：

PHYSICAL REVIEW D | 2002年 / 65卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.65.054501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a framework to compute the responses of hadron masses to the chemical potential in lattice QCD simulations. As a first trial, the screening mass of the pseudoscalar meson and its first and second responses are evaluated. We present results on a 16 x 8(2) x 4 lattice with two flavors of staggered quarks below and above T-c. The responses to both the isoscalar and isovector chemical potentials are obtained, They show different behavior in the low and the high temperature phases, which may be explained as a consequence of chiral symmetry breaking and restoration, respectively.

引用

页数：10

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