Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 48: Struktur und Dynamik von Kernen
HK 48.5: Vortrag
Donnerstag, 20. März 2014, 18:00–18:15, HZ 4
Ab Initio Nuclear Structure and Reactions with Chiral Three-Body Forces — •Joachim Langhammer1, Petr Navratil2, Robert Roth1, and Angelo Calci1 — 1Institut für Kernphysik - Theoriezentrum, TU Darmstadt — 2TRIUMF, Vancouver, Canada
One major ambition of ab initio nuclear theory is the description of nuclear-structure and reaction observables on equal footing. This is accomplished by combining the no-core shell model (NCSM) with the resonating-group method (RGM) to a unified ab initio approach to bound and continuum states, which is developed further to the no-core shell model with continuum (NCSMC). We present the formal developments to include three-nucleon interactions in both the NCSM/RGM and NCSMC formalism. This provides the possibility to assess the predictive power of chiral two- and three-nucleon forces in the variety of scattering observables. We study three-nucleon force effects on phase-shifts, cross sections and analyzing powers in first ab-initio studies of nucleon-4He scattering with chiral two- and three-nucleon forces. Finally, we focus on heavier target nuclei using the NCSMC, e.g., in neutron-8Be scattering and study the impact of the continuum on the spectrum of 9Be.
Supported by DFG (SFB 634), HIC for FAIR, and BMBF(06DA9040I).