Recent results on the nonmesonic weak decay of hypernuclei within a one-meson-exchange model

Abstract

We update our previous results for the nonmesonic decay of ${}_{\Lambda }^{12}$C and ${}_{\Lambda }^5$He. We pay special attention to the role played by Final State Intreractions on the decay observables. We follow a One-Meson-Exchange model which includes the exchange of the $\pi ,\rho ,K,K^{\ast },\eta$ and $\omega$ mesons. We also present recent predictions for different observables concerning the decay of the doubly strange ${}_{\Lambda \Lambda }^6$He hypernucleus.

Comments: 4 pages. Contribution to the Mesons and Light Nuclei'01 Conference, Prague, 2-6 July 2001