Self-consistent description of emission processes in axially-symmetric nuclei

Abstract

We present a theory of cluster emission processes in terms of proton ($π$) and neutron ($ν$) single--particle (sp) degrees of freedom within a self--consistent mean--field (SCMF) constructed from a two--particle interaction having relative (rel) and center of mass (com) terms centered on the nucler surface, the latter describing the interaction between the com of a pair of particles and the surface of an axially--symmetric nucleus. In this way the $α$-clustering phenomenon becomes enhanced on the nuclear surface. We present applications for unstable nuclei that decay through the emission of $α$--particles above $^{100}\textrm{Sn}$, $^{208}\textrm{Pb}$ and within the actinidies series.