Shape Coexistence In The Neutron-Deficient Lead Isotopes, As Seen From Within Complimentary Models

Shape coexistence in the neutron-deficient isotope

Neutron-deficient nuclei near the Z=82 closed shell exhibit the phenomenon of shape coexistence where the nucleus can take on oblate, prolate, and even spherical shapes at around the same excitation energy. The single-proton excitations in 187 Tl (with Z=81) can be used as a probe into the microscopic mechanisms behind this phenomenon. Previous studies of 187 Tl deduced the presence of coexisti...

Shape coexistence in neutron-deficient Kr isotopes: Constraints on the single-particle spectrum of self-consistent mean-field models from collective excitations

M. Bender, 2, 3 P. Bonche, ∗ and P.-H. Heenen Service de Physique Nucléaire Théorique, Université Libre de Bruxelles, Case Postale 229, B-1050 Bruxelles, Belgium National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824 CEA-Saclay DSM/DAPNIA/SPhN, F-91191 Gif sur Yvette, France Service de Physique Théorique, CEA Saclay, F-91191 Gif sur Yvette Cedex, France...

Triaxiality and shape coexistence in Germanium isotopes

The ground-state deformations of the Ge isotopes are investigated in the framework of GognyHartree-Fock-Bogoliubov (HFB) and Skyrme Hartree-Fock plus pairing in the BCS approximation. Three different Skyrme parametrizations are used to explore the influence of different effective masses and spin-orbit models. There is generally good agreement for binding energies and deformations (total quadrup...

Shape Coexistence in Light Krypton Isotopes

Penning-trap mass spectrometry and mean-field study of nuclear shape coexistence in the neutron-deficient lead region

V. Manea,1,2,* P. Ascher,2,† D. Atanasov,2 A. E. Barzakh,3 D. Beck,4 K. Blaum,2 Ch. Borgmann,2 M. Breitenfeldt,5 R. B. Cakirli,2,‡ T. E. Cocolios,6,§ T. Day Goodacre,6,7 D. V. Fedorov,3 V. N. Fedosseev,7 S. George,2 F. Herfurth,4 M. Kowalska,8 S. Kreim,2,8 Yu. A. Litvinov,4 D. Lunney,1 B. Marsh,7 D. Neidherr,4 M. Rosenbusch,9 R. E. Rossel,7,10 S. Rothe,7,10 L. Schweikhard,9 F. Wienholtz,9 R. N....