Thermal QCD sum rules for σ(600) meson

被引：18
|
作者：
Veliev, Elsen Veli [1 ]
Aliev, T. M. [2 ]
机构：
[1] Kocaeli Univ, Dept Phys, TR-41380 Umuttepe Yerleskesi, Izmit, Turkey
[2] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2008年 / 35卷 / 12期
关键词：
D O I：
10.1088/0954-3899/35/12/125002
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In the present work, the temperature dependence of the scalar meson parameters is investigated in the framework of thermal QCD sum rules. We calculate the sigma-pole and the non-resonant two-pion continuum contributions to the spectral density. Taking into account additional operators appearing at finite temperature, the thermal QCD sum rules are derived. The temperature dependence of the shifts in the mass and leptonic decay constant of the scalar sigma(600) meson is calculated.
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页数：9
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