Calculations of $ar K$-nuclear quasi-bound states using chiral $ar K$N amplitudes

摘要

We review our recent calculations of K? quasi-bound states in nuclear systems using subthreshold energy dependent chiral N amplitudes. Strong energy dependence of the scattering amplitudes requires self-consistent evaluation of the involved N interactions. In view of sizable widths predicted by our calculations, an unambiguous identification of K?-nuclear quasi-bound states in ongoing experimental searches would be difficult.