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HK: Physik der Hadronen und Kerne
HK 40: Theorie
HK 40.6: Talk
Wednesday, March 9, 2005, 15:30–15:45, TU MA005
Ab initio calculation of the 4He system — •Martin Trini1, G.M. Hale2, and H.M. Hofmann1 — 1Institute for Theoretical Physics III, University of Erlangen-Nuernberg, 91058 Erlangen, Germany — 2Los Alamos National Laboratory, Los Alamos, NM 87544, USA
We report on a consistent, microscopic calculation of the bound and scattering states in the 4He system. The calculations are done in the framework of the resonating group model with realistic two- and three-nucleon potentials. We compare the calculated phase shifts to a recent R-matrix analysis and to data. In addition radiative capture reactions leading to 4He are calculated in the long wave-length limit and compared to recent data. The overall agreement is very good. To improve on the three-nucleon forces we call for new experiments.