New spectra from the FINUDA experiment of the Non-Mesonic Weak Decay (NMWD) proton kinetic energy for Be-9(Lambda), B-11(Lambda), C-12(Lambda), C-13(Lambda), N-15(Lambda) and O-16(Lambda) are presented and discussed along with the published data on He-5(Lambda) and Li-7(Lambda)
Exploiting the large mass number range and the low energy threshold (15 MeV) for the proton detection of FINUDA, an evaluation of both Final State Interactions (FSI) and the two-nucleon induced NMWD contributions to (fie decay process has been done Based oil this evaluation, a linear dependence of FSI on the hypernuclear mass number A is found and for the two-nucleon stimulated decay rate the experimental value of Gamma(2)/Gamma(p) = 0 43 +/- 0 25 is determined for the first time A value for the two-nucleon stimulated decay rate to the total decay rate Gamma(2)/Gamma(NMWD) = 0 24 +/- 0 10 is also extracted (C) 2010 Elsevier B V All rights reserved