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Phys. Rev. Lett. 76, 3281–3284 (1996)

Observation of an Intense Quasicontinuum of Superdeformed Rotational Transitions in 143Eu

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S. Leoni, B. Herskind, and T. Døssing
The Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark

A. Ataç
Department of Radiation Sciences, Uppsala University, Uppsala, Sweden

M. Piiparinen
Department of Physics, University of Jyväskylä, Jyväskylä, Finland

Received 21 December 1995; published in the issue dated 29 April 1996

Quasicontinuum spectra in coincidence with transitions belonging to the different potential wells of 143Eu are studied with increasing number of coincidence folds. An intense bump of rotationally correlated transitions is observed to develop in the high spin region. Fold distributions, angular anisotropies, moment of inertia determinations, and lower limits of lifetimes as function of the rotational frequency show that the bump originates from highly collective rotationally damped E2 transitions generated by superdeformed states.

© 1996 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.3281
DOI:
10.1103/PhysRevLett.76.3281
PACS:
21.10.Re, 21.10.Tg, 23.20.En, 27.60.+j