Quasi-particle finite amplitude method applied to the charge exchange process in nuclear strength function models

Quasi-particle finite amplitude method (QFAM) has become the tool of choice to perform fast and accurate calculations of the nuclear strength function. Such a method is particularly interesting when applied to deformed nuclei, where traditional approaches based on large-scale matrix diagonalizations becomes almost intractable.
The goal of the current project is to extend the QFAM code developed at CEA to allow for charge exchange process and to calculate rates of ß- decay for all medium-mass and heavy even-even nuclei between the valley of stability and the neutron drip line using the newly fitted Gogny interactions.
By creating a shared databases of ß- decay rates with collaborators working in other CEA research units, we will perform systematic comparison with existing data in order to identify possible outliers and/or discrepancies.