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The T=0 neutron-proton pairing correlations in the superdeformed rotational bands around 60Zn

J. Dobaczewski,1,2 J. Dudek,2 and R. Wyss3

1Institute of Theoretical Physics, Warsaw University, Hoza 69, PL-00681, Warsaw, Poland
2Institut de Recherches Subatomiques, UMR7500, CNRS-IN2P3 and Université Louis Pasteur,
F-67037 Strasbourg Cedex 2, France
3KTH-Kärnfysik, Frescativ. 24, S-104 05 Stockholm, Sweden


The superdeformed bands in 58Cu, 59Cu, 60Zn, and 61Zn are analyzed within the frameworks of the Skyrme-Hartree-Fock as well as Strutinsky-Woods-Saxon total routhian surface methods with and without the T=1 pairing correlations. It is shown that a consistent description within these standard approaches cannot be achieved. A T=0 neutron-proton pairing configuration mixing of signature-separated bands in 60Zn is suggested as a possible solution to the problem.


Jacek Dobaczewski