Strange nuclear structures with high density formed by single/double K− meson

We have investigated various kaonic nuclei (K¯ nuclei) with a new framework of antisymmetrized molecular dynamics, which is improved in the following two points: (1) K−p/K¯0n mixing and (2) J & T projections. Most of K¯ nuclei are found to be deeply bound by about 100 MeV. The extremely proton-rich K¯ nuclei, such as pppK−, ppppK−, pppK−K− and ppppK−K−, have interesting structures, but are not so deeply bound.