2003/12/03 by G. Royer, K. Zbiri, C. Bonilla · 2 citations
Physics and Astronomy · #Alpha decay #Alpha particle #Astronomical and nuclear sciences #Asymmetry #Atomic and Molecular Physics #Atomic physics #Charge (physics) #Cluster decay #Cold fission #Drop (telecommunication) #Fission #Materials science #Neutron #Neutron emission #Nuclear physics #Nuclear physics research studies #Nucleon #Particle physics #Physics #RADIUS #Semi-empirical mass formula #Shell (structure) #Spontaneous fission #Superheavy Elements #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2003.11.010
published as Nucl.Phys. A730 (2004) 22
openalex publication_date 2003/12/03 · arxiv created 2004/10/12 · arxiv updated 2015/06/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The barriers standing against the formation of superheavy elements and their consecutive α decay have been determined in the quasimolecular shape path within a Generalized Liquid Drop Model including the proximity effects between nucleons in a neck, the mass and charge asymmetry, a precise nuclear radius and the shell effects given by the Droplet Model. For moderately asymmetric reactions double-hump potential barriers stand and fast fission of compact shapes in the outer well is possible. Very asymmetric reactions lead to one hump barriers which can be passed only with a high energy relatively to the superheavy element energy. Then, only the emission of several neutrons or an α particle can allow to reach an eventual ground state. For almost symmetric heavy-ion reactions, there is no more external well and the inner barrier is higher than the outer one.