Structure of the Weak InteractionΛ+N→N+N
Structure of the Weak InteractionΛ+N→N+N
复制标题
弱相互作用的结构Λ+N→N+N
DOI：
10.1103/physrevlett.11.96
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发表时间：
1963
影响因子：
8.6
通讯作者：
R. Dalitz
中科院分区：
文献类型：
--
作者：
M. Block;R. Dalitz
统治“我们将把我们的详细分析建立在非介子衰变率的简化计算的基础上”，该计算将不同核子的A去激发视为不相干的。这一过程忽略了两个快出射核子的末态相互作用，也忽略了通常由末态反对称化引起的干涉效应，由于释放的能量很大，这些修正在这里并不重要。在这个模型中，这些速率用总自旋为S的AN系统的非介子去激发的基本速率RN~（？）在轻超核中，AN的初始态是S波、'So'和'Sy'。因此，可能的AN-NN跃迁及其相应矩阵的自旋依赖性列于表I中
rule.'We shall base our detailed analysis on a simpli-fied calculation'for the nonmesonic decay rates, which treats the A de-excitation by different nu-cleons as incoherent. This procedure neglects final-state interactions for the two fast outgoing nucleons, and neglects the interference effects which usually arise from antisymmetrization of the final state, corrections which are not expected to be important here, because of the large energy release. In this model, these rates are expressed in terms of the elementary rates RN~ for nonmesonic de-excitation of a AN system with total spin S, for unit densityof nucleon N at the A position. In light hypernuclei, the initial AN states are S-wave,'So and Sy The AN-NN transitions then possible are listed in Table I, together with the spin dependence of their corresponding matrix