18-23 March 2018
Florianopolis, Brazil
America/Sao_Paulo timezone

Exploring the decay probability of neutron-rich superheavy nuclei

20 Mar 2018, 16:00
Florianopolis, Brazil

Florianopolis, Brazil


Mrutunjaya Bruyan


The modes of decay of the even-even isotopes of superheavy nuclei of Z = 118 and 120 with neutron number 160 $\leq$ N $\leq$ 204 are investigated in the framework of the axially deformed relativistic mean field model. The asymmetry parameter $\eta$ and the relative neutron-proton asymmetry of the surface to the center R$_{\eta}$ are estimated from the ground state density distributions of the nucleus. We analyze the resulting asymmetry parameter $\eta$ and the relative neutron-proton asymmetry R$_{\eta}$ of the density, which play a crucial role in the mode(s) of decay and half-life. Moreover, the excess neutron richness on the surface is found to be an important factor for the $\beta^-$ decay of a superheavy nucleus.

Primary author

Prof. Brett Vern Carlson (Instituto Tecnológico de Aeronáutica (ITA), Sao Jose dos Campos 12228900, Sao Paulo, Brazil)

Presentation materials