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arXiv 1003.1041hep-ph
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全息QCD中矢量电流和电流磁化率的四点关联函数

Four-point correlator of vector currents and electric current susceptibility in holographic QCD

Alexander Krikun

摘要:

本文利用全息QCD模型计算了QCD中矢量夸克流的四点关联函数。在计算关联函数时,我们考虑了体中矢量和轴向矢量玻色子和玻色子的交换。计算结果用于计算外磁场中零动量电磁流的两点关联函数,与RHIC实验、手征磁效应和晶格研究有关。在零温度下,我们发现这个量是松散的手征对称性破缺和强烈依赖于禁闭性质。本文还讨论了AdS/QCD模型的一些特点。

英文摘要:

In this work we calculate the four-point correlation function of vector quark currents of QCD via holographic QCD model. Computing the correlator we take into account the exchange of vector and axial vector bosons and dilaton in the bulk. The result is used for calculation of the two-point correlator of electromagnetic currents in external magnetic field at zero momentum, related to RHIC experiments, chiral magnetic effect and lattice study. At zero temperature we find this quantity to be loosely connected with chiral symmetry breaking and strongly dependent on the confinement properties. Some features of the AdS/QCD models are also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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