Deformation and orientation effects in heavy-particle radioactivity of Z=115

Abstract

Abstract. The possibility of heavy particle radioactivity (heavier clusters) in ground state decays of 287−289 115 parent nuclei, resulting in a doubly magic daughter around 208 Pb is analyzed using Preformed Cluster Model (PCM) with choices of spherical and quadrupole deformation (β 2 ) having "optimum" orientations of decay products. The behavior of fragmentation potential and preformation probability is investigated in order to extract better picture of the dynamics involved. Interestingly, the potential energy surfaces obtained via the fragmentation process get modi¿ed signi¿cantly with the inclusion of deformation and orientation effects, which in turn inÀuence the preformation factor.