[Triumf-seminars] TRIUMF Seminar today at 13:00

[TRIUMF Seminars]

Date/Time: Tue 2011-11-22 at 13:00

Location:  Theory Room         

Speaker:   Robert Roth (TU Darmstadt)

Title:     New Horizons for Ab Initio Nuclear Structure Theory with Chiral NN+3N Interactions

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 nuclear structure and reaction studies. The full inclusion of chiral 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 spectra of nuclei throughout the p- and sd-shell with full 3N interactions in the importance-truncated no-core shell model. Furthermore, we illustrate a path towards an ab initio description of heavier nuclei using normal-ordered 3N interactions. First benchmarks and applications, e.g. in coupled cluster theory, reveal the potential of this approach.



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