Seminar Details

Three-Nucleon Forces and Exotic Nuclei

Jason Holt, TU - Darmstadt
Thursday, December 13, 4:00 PM - Theory Seminar
NSCL Seminar Room

This talk will focus on recent results, based on chiral effective field theory and renormalization group (RG) methods, in which medium-mass exotic nuclei are studied in a microscopic framework systematically constructed from two- (NN) and three nucleon (3N) forces. I will first discuss the structural evolution of the calcium isotopes from the viewpoint of pairing gaps, highlighting the distinct role that many-body processes and 3N forces play in a proper description of nuclear pairing. This approach is then extended to investigate the impact of 3N forces in exotic proton-rich nuclei, where repulsive 3N effects are essential for understanding both ground- and excited-state properties of N=8 and N=20 isotones. Finally I will present the first steps toward a non-empirical calculation of the neutrinoless double beta decay nuclear matrix element, where an effective shell model operator is calculated based on RG-evolved chiral NN interactions.