Production of ${}_{\mathrm{\Lambda }}^6$H and ${}_{\mathrm{\Lambda }}^7$H with the (K${}_{stop}^{-}$,${\pi }^{+}$) reaction

The production of neutron rich $\mathrm{\Lambda }$-hypernuclei via the ($K_s^{-}top$,${\pi }^{+}$) reaction has been studied using data collected with the FINUDA spectrometer at the DA$\mathrm{\Phi }$NE $\varphi$-factory (LNF). The analysis of the inclusive ${\pi }^{+}$ momentum spectra is presented and an upper limit for the production of ${}_{\mathrm{\Lambda }}^6$H and ${}_{\mathrm{\Lambda }}^7$H from ${}^6$Li and ${}^7$Li, is assessed for the first time.