On the origin of high- spin states in nuclear fission fragments
  In the "nucleon-phase" model of binary fission, the transfer of nucleons between an A =126 {\guillemotleft} nucleon core {\guillemotright} and the primordial "cluster" can explain both the formation of high- spin states and the saw-tooth behavior of the variation, as a function of fragment mass, of the average angular momentum. 
G. Mouze, C. Ythier and S. Hachem
nucl-ex