Direct experimental evidence of the weak $\Lambda n p \rightarrow n n p$ hypernucleus decay
/ Authors
M. Agnello, L. Benussi, M. Bertani, H. Bhang, G. Bonomi, E. Botta, M. Bregant, T. Bressani, S. Bufalino, L. Busso
and 28 more authors
D. Calvo, P. Camerini, B. Dalena, F. Mori, G. D’erasmo, F. Fabbri, A. Feliciello, A. Filippi, E. Fiore, A. Fontana, H. Fujioka, P. Genova, P. Gianotti, N. Grion, V. Lucherini, S. Marcello, N. Mirfakhrai, F. Moia, O. Morra, T. Nagae, H. Outa, A. Pantaleo, V. Paticchio, S. Paino, R. Rui, G. Simonetti, R. Wheadon, A. Zenoni
/ Abstract
A direct experimental evidence of the occurrence of the weak reaction $\Lambda np\rightarrow nnp$ in nuclei has been obtained by the FINUDA experiment. Three events have been found that can be attributed to $^{7}_{\Lambda}$Li and $^{9}_{\Lambda}$Be two nucleon-induced non mesonic weak decays. The kinematic analysis of such events is presented here.
Journal: arXiv: High Energy Physics - Experiment