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First evidence for linking transitions between the superdeformed yrast band and the normal deformed states in Gd-149

Authors

Finck, C Stezowski, O Kintz, N Vivien, JP Zuber, K Nourreddine, A Appelbe, DE Beausang, CW Beck, FA Byrski, T Courtin, S Curien, D de France, G Duchene, G Erturk, S Gall, BJP Haas, B Khadiri, N Pachoud, E Rigollet, C Smith, M Theisen, C Twin, PJ

Citation

C. Finck et al., First evidence for linking transitions between the superdeformed yrast band and the normal deformed states in Gd-149, PHYS LETT B, 467(1-2), 1999, pp. 15-20

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICS LETTERS B

ISSN journal

03702693 → ACNP

Volume

467

Issue

1-2

Year of publication

1999

Pages

15 - 20

Database

ISI

SICI code

0370-2693(19991111)467:1-2<15:FEFLTB>2.0.ZU;2-C

Abstract

Double step resolved gamma-ray transitions linking the yrast superdeformed (SD) band of Gd-149 to the normal deformed (ND) level scheme have been obse rved using the EUROGAM phase II spectrometer. The excitation energy of the 47/2(-) SD state above the 7/2(-) ground state has thus been determined to be 10.625 MeV. The most likely multipolarity of the Linking transitions is deduced, which permits the assignment of the most probable spins for this S D band. This measurement represents the first observation of discrete gamma -ray transitions linking SD and ND states in the A similar to 150 mass regi on of the nuclear chart. (C) 1999 Elsevier Science B.V. All rights reserved .