On stability of the neutron rich Oxygen isotopes
  Stability with respect to neutron emission is studied for highly neutron-excessive Oxygen isotopes in the framework of Hartree-Fock-Bogoliubov approach with Skyrme forces Sly4 and Ska. Our calculations show increase of stability around 40O. 
K. A. Gridnev, D. K. Gridnev, V. G. Kartavenko, V. E. Mitroshin, V. N.   Tarasov, D. V. Tarasov and W. Greiner