Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 32: Struktur und Dynamik von Kernen
HK 32.2: Vortrag
Dienstag, 5. März 2013, 14:30–14:45, HSZ-401
Three-nucleon forces at neutron-rich extremes⋆ — Jason D. Holt1,2, Javier Menéndez1,2, Achim Schwenk2,1, and •Johannes Simonis1,2 — 1Institut für Kernphysik, Technische Universität Darmstadt, Germany — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
In the framework of chiral effective field theory, a systematic expansion for nuclear forces, it is possible to obtain valence shell interactions for nuclear structure calculations. In this approach three-nucleon forces are included naturally, contributing to effective single-particle energies as well as two-body matrix elements. We will apply this to the O and Ca chain. In addition, we investigate contributions from residual three-nucleon forces, which are expected to become more important with valence nucleons, so for the most neutron-rich isotopes. The theoretical findings are compared to recent experiments at CERN, GSI and TRIUMF.
⋆This work was supported by the DFG through Grant SFB 634, by the BMBF under Contract No. 06DA70471, and by the Helmholtz Alliance HA216/EMMI.