Isospectral superdeformed bands in the N=46 nuclei Mo-88 and Tc-89

• Published in: The European physical journal. A, Hadrons and nuclei Vol. 21; no. 3; p. 375
• Main Authors: Lagergren, Karin, Cederwall, Bo, Clark, R. M., Fallon, P., Gorgen, A., Issa, Tomas, Janssens, R. V. F., Johnson, Arne, Macchiavelli, A. O., Milechina, Larissa, Sarantites, D. G., Wyss, Ramon
• Format: Journal Article
• Language: English
• Published: 01-09-2004
• Subjects: alignment; channel-selection; Fysik; gammasphere; identical bands; mean-field; NATURAL SCIENCES; NATURVETENSKAP; Physics; pseudospin symmetry; response characteristics; states
• ISSN: 1434-601X; 1434-6001
• DOI: 10.1140/epja/i2003-10222-0

Superdeformed bands in Mo-88 and Tc-89 were populated Using Ca-40-induced fusion-evaporation reactions on Ni-58 at a beam energy of 185 MeV. Gamma-rays emitted in the reactions were detected using the Gammasphere spectrometer, in coincidence with charged particles detected by the Microball array. A new superdeformed band was assigned to the nucleus Mo-88, leading to a revisit of earlier configuration assignments for superdeformed structures in this nucleus. In particular, the theoretical interpretation of a pair of identical (isospectral) superdeformed bands in Mo-88/Tc-89 is discussed. The configurations that are assigned to the four SD bands belonging to Mo-88 have properties that are predicted to be significantly affected by pair correlations.