Abstract
The suppression and enhancement effects of ΛΛ- ζN coupling are investigated in s-shell double-Λ hypernuclei. The Pauli suppression due to this coupling in ΛΛ 6He is found to be be 0.43 MeV for the coupling strength of the NSC97e potential. This indicates that the free-space ΛΛ interaction is stronger by about 5° phase shift than that deduced from the empirical data of ΛΛ 6He without including the Pauli suppression effect. In ΛΛ 5He and ΛΛ 5H, an attractive term arising from ΛΛ- ζN conversion is enhanced by the formation of an alpha particle in intermediate ζ states. According to this enhancement, ΔB ΛΛ of ΛΛ 5He is about 0.27 MeV larger than that of ΛΛ 6He.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
