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Conference papers
Warm Nuclei: Nuclear Structure Effects on the Order-to-Chaos Transition Region
S. Leoni
1
G. Benzoni
1
N. Blasi
1
A. Bracco
1
S. Brambilla
1
F. Camera
1
A. Corsi
1
F.C.L. Crespi
1
P. Mason
1, 2
B. Million
1
D. Montanari
1
M. Pignanelli
1
E. Vigezzi
1
O. Wieland
1
M. Matsuo
Y.R. Shimizu
P. Bednarczyk
M. Castoldi
3
D. Curien
4
G.G. Duchêne
4
B. Herskind
M. Kmiecik
A. Maj
W. Meczynski
J. Robin
4
J. Styczen
M. Zieblinski
K. Zuber
A. Zucchiatti
P. Bednarczyk
Author
M. Castoldi 3
Author
D. Curien 4
Author IdHAL : dominique-curien ORCID : https://orcid.org/0000-0003-1314-898X
G.G. Duchêne 4
Author
A. Zucchiatti
Author
1
INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Milano (Via Celoria, 16 20133 Milano - Italy)
2
INFN, Sezione di Padova - Istituto Nazionale di Fisica Nucleare, Sezione di Padova (Dipartimento di Fisica Galileo Galilei Via Marzolo 8, 35131 Padova - Italy)
3
INFN, Sezione di Genova - Istituto Nazionale di Fisica Nucleare, Sezione di Genova (Via Dodecaneso 33 16146 Genova - Italy)
4
DRS-IPHC - Département Recherches Subatomiques (23 rue du Loess - BP28 67037 Strasbourg cedex 2 - France)
Abstract : The \gamma -decay from the warm rotation in the transition region between order and chaos is studied in the superdeformed (SD) nuclei 151Tb and 196Pb, using the EUROBALL IV array. A number of observables, testing the decay dynamics in the SD well, are compared with predictions from a Monte Carlo simulation of the \gamma -decay based on microscopic calculations of discrete levels and decay probabilities. Agreement with the data is found only assuming an enhancement of the B(E1) strength around 1 MeV by a factor of 10-100, which is consistent with the evidence for octupole vibrations in both mass regions. The work shows the relevance of \gamma -spectroscopy in the order-to-chaos regime to highlight specific nuclear structure effects.
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Conference papers
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http://hal.in2p3.fr/in2p3-00373501
Contributor : Yvette Heyd <>
Submitted on : Monday, April 6, 2009 - 11:27:26 AM
Last modification on : Saturday, June 20, 2020 - 4:40:03 PM
Contributor : Yvette Heyd <>
Submitted on : Monday, April 6, 2009 - 11:27:26 AM
Last modification on : Saturday, June 20, 2020 - 4:40:03 PM
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- HAL Id : in2p3-00373501, version 1
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IN2P3 | CNRS | SITE-ALSACE
Citation
S. Leoni, G. Benzoni, N. Blasi, A. Bracco, S. Brambilla, et al.. Warm Nuclei: Nuclear Structure Effects on the Order-to-Chaos Transition Region. Zakopane Conference on Nuclear Physics, Sep 2008, Zakopane, Poland. pp.555. ⟨in2p3-00373501⟩
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