LASNPA & WONP-NURT 2017

Shape coexistence phenomena in A$\sim$70 rp-process nuclei within a beyond-mean-field approach

23 Oct 2017, 13:55

25m

Room "Benigno Souza"

Parallel Talk Nuclear Structure, Nuclear Reactions and Exotic Nuclei Parallel Sessions - NUC

Speaker

Prof. Alexandrina Petrovici (IFIN-HH, Horia Hulubei National Institute for Physics and Nuclear Engineering)

Description

Proton-rich nuclei in the A$\sim$70 mass region relevant to the astrophysical rp-process manifest exotic structure and dynamics induced by shape coexistence and mixing, competition between like-nucleon and neutron-proton pairing correlations, as well as isospin-symmetry-breaking interactions. Recent results [1-4] concerning the interplay between isospin-symmetry-breaking and shape-coexistence effects on the structure and $\beta$-decay properties of N$\sim$Z nuclei obtained within the beyond-mean-field complex Excited Vampir variational model will be presented.
Reliable predictions on beyond experimental reach characteristics of these nuclei require realistic description of the experimentally accesible properties. Shape coexistence effects on terrestrial and stellar Fermi and Gamow-Teller $\beta$-decay properties of low-lying states and their influence on the effective half-lives of exotic nuclei at the high temperatures of X-ray bursts will be illustrated.

1. A. Petrovici, Phys. Rev. C 91, 014302 (2015).
2. A. Petrovici and O. Andrei, Eur. Phys. J. A 51, 133 (2015).
3. A. Petrovici and O. Andrei, Phys. Rev. C 92, 064305 (2015).
4. A. Petrovici, Phys. Scr. 92, 064003 (2017).