Speaker
Dr
Marcella Grasso
(IPN Orsay)
Description
Mean-field approaches successfully reproduce nuclear bulk properties like masses and
radii within the Energy Density Functional (EDF) framework. However, complex
correlations are missing in mean-field theories and several observables cannot be
predicted accurately. The necessity to provide a precise description of the available
data as well as reliable predictions for exotic nuclei motivates the use of sophisticated
beyond-mean-field models. A crucial aspect in these calculations is the choice of the
effective interaction to be used when one goes beyond the leading mean-field order
(available interactions are adjusted at the mean-field level). We have developed
techniques to generate new effective interactions that are regularized and are well
adapted to be used at a beyond-mean-field level (without double counting problems
and divergences). These first studies have been devoted to nuclear matter. Links have
been established between the EDF framework and some Effective Field Theory
techniques and ideas. The objective of this work is to provide new effective
interactions that do not contain any double counting, are cutoff independent, and can
be finally used for finite nuclei. This will allow us to perform reliable applications to
stable and exotic nuclei with sophisticated beyond-mean-field models.
• Moghrabi, Grasso, Colò, Van Giai, PRL 105, 262501 (2010)
• Moghrabi, Grasso, Roca-Maza, Colò, PRC 85, 044323 (2012)
• Moghrabi, Grasso, PRC 86, 044319 (2012)
• Moghrabi, Grasso, van Kolck, arXiv:1312.5949
Primary author
Dr
Marcella Grasso
(IPN Orsay)
Co-authors
Prof.
Gianluca Colo
(Milano University)
Dr
Kassem Moghrabi
(IPN Orsay)
Dr
Ubirajara van Kolck
(IPN Orsay)
