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(12C, 12N K+)n Lambda with single-charge-exchange and ppp(9Be, 9C K+)nn Lambda with double-charge-exchange, both of which produce Lambda 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 6Li + 12C 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.

Automated summary

The study introduces a method for producing very-neutron-rich hypernuclei and resonance states via charge-exchange reactions, and analyzes its feasibility and yield using a quantum dynamics model.