Cluster structures within Fermionic Molecular Dynamics

Details Cluster structures within Fermionic Molecular Dynamics Cluster structures within Fermionic Molecular Dynamics

2003-12-31

arxiv.org/abs/nucl-th/0312130v1

Nucl.Phys. A738 (2004) 357-361

Physics

Nuclear Physics

Nuclear Theory

5 pages, proceedings of the 8th International conference on Clustering Aspects of Nuclear Structure and Dynamics, Nov. 2003, N

Scientific paper

10.1016/j.nuclphysa.2004.04.061

The many-body states in an extended Fermionic Molecular Dynamics approach are flexible enough to allow the description of nuclei with shell model nature as well as nuclei with cluster and halo structures. Different many-body configurations are obtained by minimizing the energy under constraints on collective variables like radius, dipole, quadrupole and octupole deformations. In the sense of the Generator Coordinate Method we perform variation after projection and multiconfiguration calculations. The same effective interaction derived from realistic interactions by means of the Unitary Correlation Operator Method is used for all nuclei. Aspects of the shell model and cluster nature of the ground and excited states of C12 are discussed. To understand energies and radii of neutron-rich He isotopes the soft-dipole mode is found to be important.

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