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Frankfurt 2014 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 39: Struktur und Dynamik von Kernen

HK 39.1: Group Report

Thursday, March 20, 2014, 14:00–14:30, HZ 4

Microscopic description of α-cluster states in 12C — •Thomas Neff and Hans Feldmeier — GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany

The structure of 12C is investigated, using both a microscopic α-cluster model and fermionic molecular dynamics (FMD) where individual nucleons are considered as degrees freedom. In the FMD calculation an effective realistic interaction derived in the unitary correlation operator method (UCOM) is employed. By explicitly including 8Be+α channels resonances and scattering states above the three-α threshold can be investigated. Of particular interest are the second 0+ state, the famous Hoyle state, and the second 2+ state. Monopole and quadrupole transition strengths are analyzed and compared to experiment.

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