Electric dipole polarizability: from few- to many-body systems

Abstract

We review the Lorentz integral transform coupled-cluster method for the calculation of the electric dipole polarizability. We benchmark our results with exact hyperspherical harmonics calculations for 4He and then we move to a heavier nucleus studying 16O. We observe that the implemented chiral nucleon-nucleon interaction at next-to-next-to-next-to-leading order underestimates the electric dipole polarizability.

Comments: 4 pages, 2 figures, proceedings of the 21st International Conference on Few-Body Problems in Physics (FB21), May 2015, Chicago