Photofission and Quasi-Deuteron-Nuclear State as Mixing of Bosons and   Fermions
  The empirical-phenomenological quasi-deuteron photofission description is theoretically justified within the semiclassical, intermediate statistics model. The transmutational fermion (nucleon) - boson (quasi-deuteron) potential plays an essential role in the present context and is expressed in terms of thermodynamical and of microscopical quantities, analogous to those commonly used in the superfluid nuclear model. 
G. Kaniadakis, A. Lavagno and P. Quarati