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Darmstadt 2008 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 14: Theorie

HK 14.7: Vortrag

Montag, 10. März 2008, 18:30–18:45, 2F

Spectroscopic amplitudes and spectroscopic factors calculated in the Fermionic Molecular Dynamics approach — •Benjamin Hellwig and Thomas Neff — GSI, Darmstadt

Fermionic Molecular Dynamics (FMD) is an ideal approach to describe various properties like clustering and halos of light nuclei. The many-body states in this microscopic model are Slater determinants containing Gaussian wave packets as basis states. The Unitary Correlated Operator Method enables us to include the short-range central and tensor correlations providing an effective interaction derived from the realistic Argonne V18 interaction.

We calculate spectroscopic amplitudes and spectroscopic factors using the FMD many-body wave functions. Center-of-mass and recoil effects are treated properly. Effects of clustering and halos are studied in systems like 7Li, decomposed into 6He 0+ and 2+ components. The dipole response in 11Be provides information about the neutron halo.

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