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arXiv 1203.3979nucl-thhep-ph
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手征孤子模型中的丰中子超核

Neutron Rich Hypernuclei in Chiral Soliton Model

Vladimir B. Kopeliovich

摘要:

利用SU(3)量子化模型的束缚态刚性振子模型,在手征孤子方法中估算了富中子奇异$S=-1$超核的结合能。与非奇异丰中子核相比,奇异超核的额外结合发生在原子(重子)数$A=B\leq\sim 10$值不大的情况下。这种效应随着核素同位旋的增加而增强,对于Skyrme常数$e$重新标度的“核变体”模型也是如此。(λ)He-8和最近发现的(λ)H-6的总结合能与实验数据令人满意地一致。超核(λ)H-7、(λ)He-9被预测比它们的非奇异类似物H-7、He-9结合得更强;超核(λ)Li-10、(λ)Li-11、(λ)Be-12、(λ)Be-13等在模型的核变体中结合得更强。

英文摘要:

The binding energies of neutron rich strangeness $S=-1$ hypernuclei are estimated in the chiral soliton approach using the bound state rigid oscillator version of the SU(3) quantization model. Additional binding of strange hypernuclei in comparison with nonstrange neutron rich nuclei takes place at not large values of atomic (baryon) numbers, $A=B\leq\sim 10$. This effect becomes stronger with increasing isospin of nuclides, and for "nuclear variant" of the model with rescaled Skyrme constant $e$. Total binding energies of (Lambda)He-8 and recently discovered (Lambda)H-6 satisfactorily agree with experimental data. Hypernuclei (Lambda)H-7, (Lambda)He-9 are predicted to be bound stronger in comparison with their nonstrange analogues H-7, He-9; hypernuclei (Lambda)Li-10, (Lambda)Li-11, (Lambda)Be-12, (Lambda)Be-13, etc. are bound stronger in the nuclear variant of the model.

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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