Finite-temperature spectral function of the vector mesons in a holographic QCD model

被引：74

作者：

Fujita, Mitsutoshi ^{[1
]}

Fukushima, Kenji ^{[2
]}

Misumi, Tatsuhiro ^{[2
]}

Murata, Masaki ^{[2
]}

机构：

[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

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

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 03期

关键词：

CHIRAL-SYMMETRY BREAKING; TRANSITION;

D O I：

10.1103/PhysRevD.80.035001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use the soft-wall anti-de Sitter/QCD model to investigate the finite-temperature effects on the spectral function in the vector channel. The dissociation of the vector meson tower onto the anti-de Sitter black hole leads to the in-medium mass shift and the width broadening in a way similar to the lattice QCD results for the heavy quarkonium at finite temperature. We also show the momentum dependence of the spectral function and find it consistent with screening in a hot wind.

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页数：5

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