The nonmesonic weak decay of the hypertriton
J. Golak, K. Miyagawa, H. Kamada, H. Witała, W. Glöckle, A. Parreño, A. Ramos, C. Bennhold
Abstract
The nonmesonic decay of the hypertriton is calculated based on a hypertriton wavefunction and 3N scattering states, which are rigorous solutions of 3-body Faddeev equations using realistic NN and hyperon-nucleon interactions. The pion-exchange together with heavier meson exchanges for the ΛN N N transition is considered. The total nonmesonic decay rate is found to be 0.5% of the free Λ decay rate. Integrated as well as differential decay rates are given. The p- and n- induced decays are discussed thoroughly and it is shown that the corresponding total rates cannot be measured individually.
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