Delayed clusters accompanying nonmesonic weak decay of the $\Lambda$-hypernuclei: a clue to nonleptonic processes

TL;DR

This paper investigates delayed cluster emissions in the nonmesonic weak decay of $\Lambda$-hypernuclei, providing insights into the spin dependence of weak decay matrix elements through exclusive transition observations.

Contribution

It introduces a method to detect specific decay channels involving delayed clusters, enhancing understanding of nonleptonic weak decay processes in hypernuclei.

Findings

Delayed clusters reveal spin-dependent decay dynamics.

Exclusive transition detection aids in understanding weak decay mechanisms.

Results suggest new pathways for studying nonleptonic weak interactions.

Abstract

The nonmesonic decay of $\Lambda$-hypernuclei provides access to the nonleptonic weak decay process $\Lambda N \to NN$, which is achievable only through the observation of hypernuclear ground-state decays. We continue the discussion of some specific cases which make it possible to detect a few exclusive transitions, namely, the stripping of nucleon from the ground state results in a resonance state decaying via emission of two clusters. Delayed clusters accompanying weak decay of light hypernuclei give a unique information on spin dependence of the weak decay matrix elements.