Author/Authors :
Z.X. Xu، نويسنده , , R.J. Liotta، نويسنده , , C. Qi، نويسنده , , T. Roger، نويسنده , , P. Roussel-Chomaz، نويسنده , , H. Savajols، نويسنده , , R. Wyss، نويسنده ,
Abstract :
The unbound nucleus 12Li is evaluated by studying three-neutron one-proton excitations within the multistep shell model in the complex energy plane. It is found that the ground state of this system consists of an antibound image state. A number of narrow states at low energy are found which ensue from the coupling of resonances in 11Li to continuum states close to threshold.