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arXiv 0711.1003nucl-th
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有限密度QCD求和规则中的$ΣΣ$相互作用

The $ΣΣ$ interactions in finite-density QCD sum rules

P. Li, X. H. Zhong, L. Li, P. Z. Ning

摘要:

用有限密度量子色动学求和规则(QCDSR)方法研究了纯$Σ$物质中$Σ$超子的性质. $ΣΣ$核势$U_Σ$最有可能是强吸引力的,在正常核密度下,它可以是约-50 MeV或甚至更有吸引力。如果这一预测是正确的,那么当存在多个$Σ$超子时,$Σ$超子之间的相互作用在奇异核物质中应该起着至关重要的作用。可能存在双$Σ$的束缚态。

英文摘要:

The properties of $Σ$-hyperons in pure $Σ$ matter are studied with the finite-density quantum chromo-dynamics sum rule (QCDSR) approach. The $ΣΣ$ nuclear potential $U_Σ$ is most likely strongly attractive, it could be about -50 MeV or even more attractive at normal nuclear density. If this prediction is the case, the interactions between $Σ$-hyperons should play crucial roles in the strange nuclear matter, when there are multi-$Σ$ hyperons. The bound state of double-$Σ$ maybe exist.

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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