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arXiv 0704.3004hep-phnucl-th
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核子QCD求和规则下的四夸克凝聚

Four-Quark Condensates in Nucleon QCD Sum Rules

R. Thomas, T. Hilger, B. Kampfer

摘要:

在QCD求和规则的框架下,重新讨论了核子谱密度(包括自能)的介质内行为。特别强调的是四夸克凝聚的密度依赖性。给出了四夸克凝聚的完整目录,并导出了它们之间的关系。讨论了轻重子和轻矢量介子在QCD求和规则中出现的四夸克凝聚的一般差异。

英文摘要:

The in-medium behavior of the nucleon spectral density including self-energies is revisited within the framework of QCD sum rules. Special emphasis is given to the density dependence of four-quark condensates. A complete catalog of four-quark condensates is presented and relations among them are derived. Generic differences of such four-quark condensates occurring in QCD sum rules for light baryons and light vector mesons are 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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