5th International Symposium on Nuclear Symmetry Energy NuSYM15, June 29 - July 2, 2015 Kraków, POLAND

Gianluca Colò
University of Milano and INFN, ITALY

Constraints on symmetry energy from different collective excitations

In this contribution, we shall review several works related to the extraction of the symmetry energy parameters from isovector nuclear excitations, like the giant resonances. We will focus on the isovector dipole, the isovector quadrupole and the charge-exchange anti-analog dipole resonance. We will conclude that these extractions lead to consistent values for the symmetry energy at saturation, J. The extracted values for the slope parameter L are not fully consistent, and call for a detailed analysis of model dependences and experimental uncertainties. We will end with a critical discussion of the mean-field models we have employed in this study.