The proton decay asymmetry, αNM p , of the polarized Λ -hypernuclei, 5 ΛHe , 12 ΛC and 11 ΛB , has been investigated to understand the reaction mechanism of the non-mesonic weak-decay process. These Λ -hypernuclei were produced in the highest statistics ever via the (π+, K +) reaction at 1.05GeV/c by using the SKS spectrometer at KEK 12GeV PS. The results show that the αNM p are very small for these s -shell and p -shell hypernuclei.
ASJC Scopus subject areas
- Nuclear and High Energy Physics