Novel method for producing very-neutron-rich hypernuclei via charge-exchange reactions with heavy ion projectiles

We propose a novel method for producing very-neutron-rich hypernuclei and corresponding resonance states by employing charge-exchange reactions via pp( ^12 C, ^12 N K^+ )n with single-charge-exchange and ppp( ^9 Be, ^9 C K^+ )nn with double-charge-exchange, both of which produce K^+ in a target nucleus. The feasibility of producing very-neutron-rich hypernuclei using the proposed method was analysed by applying an ultra-relativistic quantum molecular dynamics model to a ^6 Li + ^12 C reaction at 2 A GeV. The yields of very-neutron-rich hypernuclei, signal-to-background ratios, and background contributions were investigated. The proposed method is a powerful tool for studying very-neutron-rich hypernuclei and resonance states with a hyperon for experiments employing the Super-FRS facility at FAIR and HFRS facility at HIAF.