Isobar Analog States (IAS), Double Isobar Analog States (DIAS), Configuration States (CS), and Double Configuration States (DCS) in Halo Nuclei. Halo Isomers.

摘要

It has been shown that IAS, DIAS, CS, and DCS can simultaneously have n-n, n-p, and p-p halo components in their wave functions. Differences in halo structure of the excited and ground states can result in the formation of isomers (halo-isomers). Both the Borromean and tango halo types can be observed for n-p configurations of atomic nuclei. The structure of the ground and excited states with different isospin quantum number in halo like nuclei is discussed. B(Mλ) and B(Eλ) for γ-transitions in ~(6,7,8)Li, ~(8,9,10)Be, ~(8,10,11)B, ~(10,11,12,13,14)C,~(13,14,15,16,17N,15,16,17,19O), _(and) ~(17)F are analyzed Special attention is given to nuclei whose ground state does not exhibit halo structure but the excited state may have one.