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arXiv 0903.1893nucl-thhep-phnucl-ex
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核物质中的超子

Hyperons in nuclear matter

T. Miyatsu, K. Saito

摘要:

手征版本的QMC模型,其中包括胶子和π介子交换的影响自洽,适用于在核介质中的超子。由胶子交换引起的超精细相互作用在介质重子谱中起重要作用,而介子云效应相对较小。在夸克平均场水平上,$Λ$比物质中的夸克或夸克感受到更大的吸引力。

英文摘要:

The chiral version of the QMC model, in which the effect of gluon and pion exchanges is included self-consistently, is applied to the hyperons in a nuclear medium. The hyperfine interaction due to the gluon exchange plays an important role in the in-medium baryon spectra, while the pion-cloud effect is relatively small. At the quark mean-field level, the $Λ$ feels more attractive force than the Σor Ξin matter.

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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