Formation and Decay of ~ Hypernuclei in (Stopped x-, n±) Reactions

Abstract

Results are reviewed on the systematic study of :E hypernuclei with (stopped K-, ~r±) reactions performed by Tokyo group. Formation and decay properties of :E hypernuclei obtained from 12C(K-, ~r+) and 4He(K-, ~r±) reactions are summarized. The first observation of the :E hypernuclear bound state (~He) and information of isospin/spin dependence of :E·nucleus interaction from the 4He data are discussed in detail and they are compared with recent theoretical estimations.