Speaker
Description
Neutron‐deficient nuclei around mass number A~80 are of great interest in nuclear structure and nuclear astrophysics (this region, e.g., is explored in the rp‐process nucleosynthesis). Although shape‐coexistence is becoming a rather common feature along the nuclear chart [1], the region of medium‐mass N~Z nuclei is expected to show several collective structures associated to distinctive shapes present at the mean‐field approximation, i.e., multiple shape coexistence [2].
One of the best suited theoretical tools to study these phenomena is the projected generator coordinate method (PGCM, also referred to as symmetry conserving configuration mixing, or multi-reference energy density functional methods) [3]. In this contribution I will discuss the application of the PGCM method with the Gogny energy density functional in the description of multiple shape coexistence in N≃Z nuclei from 56Ni to 100Sn.
[1] P. E. Garrett, M. Zielińska, E. Clément, Prog. Part. Nucl. Phys. 124, 103921 (2022).
[2] T. R. Rodríguez, J. L. Egido, Phys. Lett. B 705, 255 (2011).
[3] L. M. Robledo, T. R. Rodríguez, R. R. Rodríguez‐Guzmán, J. Phys. G: Nucl. Part. Phys. 46 013001
(2019).
