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HK: Fachverband Hadronen und Kerne

HK 71: Nuclear Structure and Dynamics I

HK 71.4: Talk

Thursday, March 19, 2009, 18:00–18:15, H-ZO 40

Electromagnetic excitation of nickel nuclei at LAND/R³B — •Dominic Rossi — Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany

The dipole response of stable and unstable nickel isotopes has been investigated at GSI in Darmstadt. Relativistic secondary beams of ⁵⁷⁻⁷²Ni, with energies of approximately 500 MeV/u, have been produced in the projectile FRagment Separator (FRS) and subsequently excited by heavy-ion-induced Coulomb excitation at the LAND/R³B setup. Due to the possibility to perform kinematically complete measurements with this setup, the excitation energy distributions can be determined by reconstructing the invariant mass. Measurements with Pb and C targets allow extraction of pure electromagnetic excitation data, enabling the access to the dipole strength distribution in the continuum. Cross sections for selected isotopes will be presented.