Microscopic particle-vibration coupling calculations with applications to single-particle, collective and charge-exchange nuclear transitions
→
Asia/Tokyo
201 (RIBF Hall)
201
RIBF Hall
Description
=Date and Time=
Nov.25th(Fri.) 10:30~ RIBF Hall 201
=Lecturer=
Prof.Gianluca COLO
(Universtiy of Milano, INFN)
=Title=
Microscopic particle-vibration coupling calculations with applications to single-particle, collective and charge-exchange nuclear transitions
=Abstract=
In this talk, an attempt will be made to review the present status of calculations based on a specific implementation of Density Functional Theory, that is, non-relativistic Skyrme functionals. These functionals have reached a quite high level of sophistication. At the same time, there are important elements of the nuclear phenomenology that cannot be explained within this framework: to name a few, the fragmentation of single-particle and collective excitations, or the details of their particle and gamma decay.
Thus, we will describe a complementary approach which is based on particle-vibration coupling (PVC).
The formalism that we shall describe is, in principle, non-perturbative and contains no adjustable parameters.
Various applications to low-lying states in odd nuclei and giant resonances will be discussed. Particular emphasis will be given to charge-exchange excitations, like the Gamow-Teller in magic and superfluid nuclei. In this latter case, the respective roles of PVC correlations and isovector/isoscalar pairing will be elucidated.
