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APS » Journals » Phys. Rev. Lett. » Volume 69 » Issue 20
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Phys. Rev. Lett. 69, 2905–2907 (1992)

Evidence for different time scales controlling thermal fluctuations in hot nuclei

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W. E. Ormand, F. Camera, A. Bracco, A. Maj, P. F. Bortignon, B. Million, and R. A. Broglia
Department of Physics 161-33 and W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125
Instituto Nazionale di Fisica Nucleare, Ŝezione di Milano, via Celoria 16, 20133 Milano, Italy
Dipartimento di Fisica, Università di Milano, via Celoria 16, 20133 Milano, Italy
The Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, DK-2100 Copenhagen O/ Denmark

Received 6 July 1992; published in the issue dated 16 November 1992

A comparison between the predictions of a theoretical model describing the giant dipole resonance in hot nuclei, which includes the coupling to time-dependent thermal fluctuations of the nuclear surface, and experimental data on the cross section and the angular distribution associated with the dipole decay of 92Mo* is presented. Effects of different time scales for fluctuuations in the deformation and orientation degrees of freedom are observed.

© 1992 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.69.2905
DOI:
10.1103/PhysRevLett.69.2905
PACS:
24.30.Cz, 23.20.En, 24.60.Dr, 24.60.Ky
 
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