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arXiv 1401.2189nucl-th
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位形空间Faddeev方法模拟$^6_Λ$ He超核

Modeling of $^6_Λ$He hypernucleus within configuration space Faddeev approach

I. Filikhin, V. M. Suslov, B. Vlahovic

摘要:

用团簇$^4\rm He+Λ+\rm n$模型描述了$^6_Λ$ He超核。考虑的基础上的配置空间Faddeev方程的系统的非全同粒子。一组对势包括用于$Λ\rm n$相互作用的OBE模拟(NSC97 f)模型和用于$αΛ$和$α\rm n$相互作用的唯象势。计算了自旋(1 $^-$,2 $^-$)二重态的能量.对于2 $^-$激发能,得到的值为0.18 MeV。结合态1 $^-$态的超子结合能小于实验值,这可能是三体团簇结构被破坏的证据.

英文摘要:

The cluster $^4\rm He+Λ+\rm n$ model is applied to describe the $^6_Λ$He hypernucleus. The consideration is based on the configuration space Faddeev equations for a system of non-identical particles. A set of the pair potentials includes the OBE simulating (NSC97f) model for the $Λ\rm n$ interaction and the phenomenological potentials for the $αΛ$ and $α\rm n$ interactions. We calculated energies of spin (1$^-$,2$^-$) doublet. For the 2$^-$ excitation energy, the obtained value is 0.18 MeV. The hyperon binding energy of the bound 1$^-$ state is less than the experimental value, which may be an evidence for violation of the exact three-body cluster structure.

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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