The production of neutron rich Λ-hypernuclei via the
(Ks−​top,π+) reaction has been studied using data collected with the
FINUDA spectrometer at the DAΦNE ϕ-factory (LNF). The analysis of the
inclusive π+ momentum spectra is presented and an upper limit for the
production of Λ6​H and Λ7​H from 6Li and 7Li, is
assessed for the first time.Comment: 11 pages, 3 figures. Accepted for publication in PL