[Triumf-seminars] TRIUMF Colloquium today at 14:00

[TRIUMF Seminars]

Date/Time: Tue 2012-02-28 at 14:00

Location:  Auditorium          

Speaker:   Robert Roth (Technical University of Darmstadt)

Title:     New Horizons in Ab Initio Nuclear Structure Theory

Abstract: Low-energy nuclear theory has entered an era of ab initio nuclear structure and reaction calculations based on input from QCD. One of the most promising paths from QCD to nuclear observables employs Hamiltonians constructed within chiral effective field theory as starting point for precise ab initio studies. However, the full inclusion of chiral two- plus three-nucleon (NN+3N) interactions in exact and approximate many-body calculations poses a formidable challenge. We discuss recent breakthroughs that allow for ab initio calculations for ground states and spectroscopy of nuclei throughout the p- and sd-shell with full 3N interactions using consistent Similarity Renormalization Group (SRG) transformations and the Importance-Truncated No-Core Shell Model (IT-NCSM). Moreover, we discuss extensions of these ab initio calculations to heavy nuclei within coupled-cluster theory and to low-energy reactions. We highlight specific cases, where recent experiments on exotic nuclei and ab initio theory meet to provide a quantitative understanding of the complex structure of nuclei.

Stimulants available 15 minutes before the talk.

______________________________

Subscription information available at http://admin.triumf.ca/netdata/seminars/list