Production of the Neutron-Rich Hypernucleus $_{\ensuremath{\Lambda}}^{10}\mathrm{L}\mathrm{i}$ in the $({\ensuremath{\pi}}^{\ensuremath{-}},{K}^{+})$ Double Charge-Exchange Reaction

Production of the Neutron-Rich Hypernucleus ${}_{Λ}^{10}{L i}$ in the $(π^{-}, K^{+})$ Double Charge-Exchange Reaction

P. K. Saha et al.

Phys. Rev. Lett. 94, 052502 – Published 9 February 2005

Abstract

In order to produce a neutron-rich $Λ$ hypernucleus for the first time, we carried out an experiment by utilizing the $(π^{-}, K^{+})$ double charge-exchange reaction on a ${}^{10}B$ target. We observed the production of a ${}_{Λ}^{10}{L i}$ hypernucleus. The cross section for the $Λ$ bound region was found to be $11.3 \pm 1.9 n b / s r$ with the $1.2 G e V / c$ incident momentum, which is compared with the ${}_{Λ}^{10}B$ hypernucleus production cross section, $7.8 \pm 0.3 μ b / s r$ , in the $(π^{+}, K^{+})$ reaction with a $1.05 G e V / c$ incident momentum beam.