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HK: Fachverband Hadronen und Kerne

HK 58: Nuclear Structure and Dynamics I

HK 58.6: Vortrag

Mittwoch, 18. März 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.