Bochum 2009 – scientific programme
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HK: Fachverband Hadronen und Kerne
HK 58: Nuclear Structure and Dynamics I
HK 58.6: Talk
Wednesday, March 18, 2009, 18:00–18:15, H-ZO 40
New Nuclear Stability Islands of Octahedral and Tetrahedral Shapes — •Katarzyna Mazurek1, Jerzy Dudek2, Andrzej Gozdz3, Dominique Curien2, Maria Kmiecik1, and Adam Maj1 — 1The Niewodniczański Institute of Nuclear Physics - PAN, ul. Radzikowskiego 152, PL-31-342 Kraków, Poland — 2Institut de Recherches Subatomiques and Université Louis Pasteur, F-67037 Strasbourg Cedex 2, France — 3Zakład Fizyki Matematycznej - Uniwersytet Marii Curie-Skłodowskiej, pl. Marii Curie-Skłodowskiej 1, PL-20031 Lublin, Poland
Large scale calculations based on the microscopic-macroscopic method with Woods- Saxon single particle potential guided by the use of the discrete point group symmetries allow us to find the new islands of nuclear stability. These new stability regions are the consequence of particularly strong shell effects which are obtained in the calculations when the nuclear mean field is allowed to deform by respecting some special the so called high-rank symmetry-point groups. The underlying mechanism is illustrated together with the full chain of the symmetry-associated magic numbers.