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Darmstadt 2008 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 14: Theorie

HK 14.6: Talk

Monday, March 10, 2008, 18:15–18:30, 2F

Shape transition in Zirconium nuclei — •Kamila Sieja1 and Frederic Nowacki21GSI, Darmstadt, Germany — 2IPHC, Strasbourg, France

In the present work the structure of neutron rich Zirconium nuclei is investigated in the framework of Large Scale Shell Model calculations. The valence space suitable for this study is composed of f5p3p1g9 proton and d5s1d3g7h11 neutron orbitals. The corresponding effective interaction is derived by monopole corrections necessary to reproduce the spectroscopic data of the key nuclei between 91Zr and 101Sn. The quality of the monopole-corrected realistic forces used so far provided strong arguments for such a procedure of finding the effective interaction. The agreement of the experiment and theory obtained here in the mass A~95 region is as well satisfying. The progressive transition from spherical regime to deformation of Zr isotopes is then analysed in terms of shell evolution and of the proton-neutron monopole interaction.

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