Annihilation widths and shifts of quasinuclear NN levels in the coupled-channel model
Kerbikov B.O. , Kudryavtsev A.E., Markushin V.E., Shapiro I.S.
It is shown that in the case of radius of the annihilation interaction, the annihilation widths and shifts of the quasinuclear levels (NN) remain small at arbitrary annihilation intensity. At low annihilation intensity the level shift is negative—the level becomes deeper.