Pion Susceptibilities of the Vacuum in a Modified Global Colour Symmetry Model

来源 :理论物理通讯（英文版） | 被引量 : 0次 | 上传用户：chen90245

【摘要】

：

Based on a modified version of the global color symmetry model, the pion susceptibilities of vacuum needed in the QCD sum rule external-field method for the cou

【作者】

：

ZONG Hong-Shi WU Xiao-Hua DING

【机构】

：

Department of Physics,Institute of Theoretical Physics

【出处】

：

理论物理通讯（英文版）

【发表日期】

：

2004年期

【关键词】

：

nonperturbative QCD GCM pion susceptibility

【基金项目】

：

国家自然科学基金;南京大学校科研和教改项目

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Based on a modified version of the global color symmetry model, the pion susceptibilities of vacuum needed in the QCD sum rule external-field method for the coupling of pseudoscalar current to hadron have bean calculated beyond the vacuum saturation approximation. Comparison with the previous estimations has been given.

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Pion Susceptibilities of the Vacuum in a Modified Global Colour Symmetry Model

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