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Darmstadt 2008 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 42: Hauptvorträge

HK 42.1: Invited Talk

Friday, March 14, 2008, 08:30–09:00, 1B/C

Exploring the nuclear landscape with laser-spectroscopy at ISOLDE — •Magdalena Kowalska1, Klaus Blaum2,3, Dana Borremans4, Kieran Flanagan4, Christopher Geppert2, Jörg Krämer2, Peter Lievens4, Rainer Neugart2, Gerda Neyens4, Wilfried Nörtershäuser2, Nele Vermeulen4, and Deyan Yordanov2,41CERN — 2Universität Mainz — 3GSI — 4Katholieke Universiteit Leuven

Ground-state properties of nuclei - spins, magnetic dipole and electric quadrupole moments, and charge radii - provide crucial information on nuclear single-particle and collective behaviour, and are particularly valuable in the context of shell closures and halo effects. They have been studied successfully for many exotic nuclei with the COLLAPS setup located at ISOLDE/CERN, which uses optical excitation or pumping of atoms/ions with laser light together with the hyperfine interaction of the nucleus with the shell electrons, external magnetic fields or electric crystal fields. Recent studies concentrated on light- and medium-mass regions: the quadrupole moment of halo 11Li; spins and magnetic moments of neutron-deficient 21Mg around Z=N line and neutron-rich 31,33Mg inside the ’island of inversion’; and spins, magnetic and quadrupole moments, and charge radii of neutron-rich Cu isotopes including 68−72Cu. I will present the technique and setup, the physics motivation for the above measurements, as well as the experimental results and their interpretation.

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