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引用次数: 0
摘要
本文研究了Λ-hypernuclei非介子弱衰变中核结构的相关性，其中ΛN→NN跃迁机制仅限于一次介子交换(OPE)。作为一个应用，对于超核Λ 12c, L-S耦合和j-j耦合的比较给出了核结构效应范围的估计。发现总衰变率和比值Г n /qG p与核模型的单粒子性质有相当大的关系。以现象学的方式研究了ΔI = 3/2通道的可能贡献。
Is nuclear structure relevant to non-mesonic hypernuclear weak decay?
This work studies the relevance of nuclear structure in the nonmesonic weak decay of Λ-hypernuclei, with the mechanism of ΛN → NN transition being restricted to one pion exchange (OPE) only. As an application, for the hypernucleus Λ 12 C a comparison between the L-S coupling and the j-j coupling gives an estimate of the range of nuclear structure effects. A considerable dependence is found of the total decay rate and the ratio Г n /qG p on the single particle properties of nuclear models. The possible contribution from the ΔI = 3/2 channel is investigated in a phenomenological manner.
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