Nuclei around the drip-line and its impact on the cosmic events

The atomic nucleus is a complex quantum many-body system but its simple behavior can be explained by a mean nuclear field, containing many ingredients of the nucleon-nucleon interactions.
The characteristics of that are the shell gaps at magic numbers, explained by Mayer and Jensen.
But the situation is different in the nuclei around the drip line. Very clear evidences have been observed for the breakdown and merging of long cherished magic shell gaps at N=20, 28.
The nuclei around the drip-line are short lived and naturally do not exist on the earth. But surprisingly, evanescent rare isotopes imprint their existence in supernovae and other stellar explosive
scenarios (rp, r-process etc.). Due to their fleeting existence, indirect measurements are often only possible access to the information which are valuable inputs to the model for star evaluation process. Neutron star, remnant of supernovae is the densest matter, observed in cosmos. To understand that state of matter, some valuable properties of proton-rich and neutron-rich nuclei are key issues. I shall discuss our achievements related to above mentioned facts using RIB in worldwide scenario.

Organizer: Giacomo De Angelis

Speaker: Prof. Ushasi Datta (Saha Institute of Nuclear Physics Kolkata India)

Friday 23 September 2022 at 11:30 in room Rostagni