Superdeformation in Tc-91

Summary, in English

A high-spin rotational band with 11 gamma -ray transitions has barn observed in Tc-91. The dynamical moment of inertia as well as the transition quadrupole moment of 8.1(-1.4)(+1.9) eb measured for this band show the characteristics of a superdeformed band. However, the shape is more elongated than in the neighbouring A = 80-90 superdeformed nuclei. Theoretical interpretations of the band within the cranked Strutinsky approach based on two different Woods-Saxon potential parameterisations are presented. Even though an unambiguous configuration assignment proved difficult, both calculations indicate a larger deformation and at least three additional high-N intruder orbitals occupied compared to the lighter SD nuclei. (C) 2000 Elsevier Science B.V. All rights reserved.

• Author: E Ideguchi; B Cederwall; R Wyss; T Back; K Lagergren; A Johnson; W Klamra; Joakim Cederkäll; M Devlin; J Elson; DR LaFosse; F Lerma; DG Sarantites; V Tomov; M Hausmann; A Jungclaus; DR Napoli; MP Carpenter; RVF Janssens; FG Kondev; T Lauritsen; CJ Lister; D Seweryniak; I Wiedenhoever; RM Clark; P Fallon; IY Lee; AO Macchiavelli; RW Macleod
• Publishing year: 2000
• Language: English
• Pages: 245-253
• Publication/Series: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
• Volume: 492
• Issue: 3-4
• Links: http://dx.doi.org/10.1016/S0370-2693(00)01114-X
• Document type: Journal article
• Publisher: Elsevier
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 0370-2693