Superdeformed rotational bands in the mercury region; a cranked Skyrme-Hartree-Fock-Bogoliubov study

B. Gall (1) , P. Bonche (2) , J. Dobaczewski (3) , H. Flocard (4) , P.-H. Heenen (5)

1 CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
2 SPhT - Service de Physique Théorique
3 Institute of Theoretical Physics [Warsaw]
4 IPNO - Institut de Physique Nucléaire d'Orsay
5 SPT-ULB - Service de Physique Théorique [Bruxelles]

A study of rotational properties of the ground superdeformed bands in $ ^{190} {\rm Hg,} $ $ ^{192} {\rm Hg,} $ $ ^{194} {\rm Hg,} $ and $ ^{194} {\rm Pb} $ is presented. We use the cranked Hartree-Fock-Bogoliubov method with the SkM$ ^\ast $ parametrization of the Skyrme force in the particle-hole channel and a seniority interaction in the pairing channel. An approximate particle number projection is performed by means of the Lipkin-Nogami prescription. We analyze the proton and neutron quasiparticle routhians in connection with the present information on about thirty presently observed superdeformed bands in nuclei close neighbours of $ ^{192} {\rm Hg} . $

Domaines: Physique Générale [physics.gen-ph]; Physique Nucléaire Théorique [nucl-th]

B. Gall, P. Bonche, J. Dobaczewski, H. Flocard, P.-H. Heenen. Superdeformed rotational bands in the mercury region; a cranked Skyrme-Hartree-Fock-Bogoliubov study. Zeitschrift für Physik A, 1994, 348, pp.183-197. ⟨hal-00164019⟩