Melting Spectral Functions of the Scalar and Vector Mesons in a Holographic QCD Model
Melting Spectral Functions of the Scalar and Vector Mesons in a Holographic QCD Model
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DOI：
10.1103/physrevd.81.065024
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发表时间：
2009-11
影响因子：
5
通讯作者：
Mitsutoshi Fujita;K. Fukushima;T. Kikuchi;T. Misumi;Masaki Murata
中科院分区：
文献类型：
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作者：
Mitsutoshi Fujita;K. Fukushima;T. Kikuchi;T. Misumi;Masaki Murata
利用软壁反de Sitter/QCD模型研究了重夸子的有限温度谱函数。我们讨论了标量介子、伪标量介子、矢量介子和轴矢量介子，并比较了它们的熔化温度和生长宽度的定性特征。我们发现轴矢量介子比矢量介子更早熔化，而标量介子和伪标量介子只有轻微的差异，它们也比矢量介子熔化得更早。
We investigate the finite-temperature spectral functions of heavy quarkonia by using the soft-wall anti-de Sitter/QCD model. We discuss the scalar, the pseudoscalar, the vector, and the axial-vector mesons and compare their qualitative features of the melting temperature and growing width. We find that the axial-vector meson melts earlier than the vector meson, while there appears only a slight difference between the scalar and pseudoscalar mesons, which also melt earlier than the vector meson.