Probing the order-to-chaos region in superdeformed Tb151 and Pb196 nuclei with continuum γ transitions

S. Leoni, G. Benzoni, N. Blasi, A. Bracco, S. Brambilla, F. Camera, A. Corsi, F. C.L. Crespi, P. Mason, B. Million, D. Montanari, M. Pignanelli, E. Vigezzi, O. Wieland, M. Matsuo, Y. R. Shimizu, D. Curien, G. Duchêne, J. Robin, P. BednarczykM. Castoldi, B. Herskind, M. Kmiecik, A. Maj, W. Meczynski, J. Styczen, M. Zieblinski, K. Zuber, A. Zucchiatti

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14 Citations (Scopus)

Abstract

The γ decay associated with the warm rotation of the superdeformed nuclei Tb151 and Pb196 has been measured with the EUROBALL IV array. Several independent quantities provide a stringent test of the population and decay dynamics in the superdeformed well. A Monte Carlo simulation of the γ decay based on microscopic calculations gives remarkable agreement with the data only assuming a large enhancement of the B(E1) strength for 1-2 MeV γ rays, which may be related to the evidence for octupole vibrations in both mass regions.

Original languageEnglish
Article number142502
JournalPhysical review letters
Volume101
Issue number14
DOIs
Publication statusPublished - Sep 30 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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