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Journal articles
Giant dipole resonance built on hot rotating nuclei produced during evaporation of light particles from the $^{88}$Mo compound nucleus
M. Ciemala
1
M. Kmiecik
A. Maj
K. Mazurek
A. Bracco
V.L. Kravchuk
G. Casini
S. Barlini
G. Baiocco
L. Bardelli
P. Bednarczyk
G. Benzoni
M. Bini
N. Blasi
S. Brambilla
M. Bruno
F. Camera
S. Carboni
M. Cinausero
A. Chbihi
1
M. Chiari
A. Corsi
F.C.L. Crespi
M. D’agostino
M. Degerlier
B. Fornal
A. Giaz
F. Gramegna
M. Krzysiek
S. Leoni
T. Marchi
M. Matejska-Minda
I. Mazumdar
W. Meczynski
B. Million
D. Montanari
L. Morelli
S. Myalski
A. Nannini
R. Nicolini
G. Pasquali
S. Piantelli
G. Prete
O. J. Roberts
C. Schmitt
1
J. Styczen
B. Szpak
S. Valdre
B. Wasilewska
O. Wieland
J.P. Wieleczko
M. Zieblinski
J. Dudek
2
N. Dinh Dang
J. Dudek 2
Author
N. Dinh Dang
Author
1
GANIL - Grand Accélérateur National d'Ions Lourds (Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5 - France)
- CNRS - Centre National de la Recherche Scientifique : UPR3266 (France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/GANIL (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
2
IPHC - Institut Pluridisciplinaire Hubert Curien (23 rue Loess - BP 28 67037 Strasbourg Cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- UNISTRA - Université de Strasbourg (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7178 (France)
Abstract : High-energy giant dipole resonance (GDR) γ rays were measured following the decay of the hot, rotating
compound nucleus of 88Mo, produced at excitation energies of 124 and 261 MeV. The reaction 48Ti+ 40Ca at 300
and 600 MeV bombarding energies has been used. The data were analyzed using the statistical modelMonte Carlo
code GEMINI++. It allowed extracting the giant dipole resonance parameters by fitting the high-energy γ -ray
spectra. The extracted GDR widths were compared with the available data at lower excitation energy and with
theoretical predictions based on (i) The Lublin-Strasbourg drop macroscopic model, supplemented with thermal
shape fluctuations analysis, and (ii) The phonon damping model. The theoretical predictions were convolutedwith
the population matrices of evaporated nuclei from the statistical model GEMINI++. Also a comparison with the
results of a phenomenological expression based on the existing systematics, mainly for lower temperature data,
is presented and discussed. A possible onset of a saturation of the GDR width was observed around T = 3 MeV.
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http://hal.in2p3.fr/in2p3-01152679
Contributor : Michel Lion <>
Submitted on : Monday, May 18, 2015 - 2:09:25 PM
Last modification on : Friday, June 5, 2020 - 10:52:08 AM
Contributor : Michel Lion <>
Submitted on : Monday, May 18, 2015 - 2:09:25 PM
Last modification on : Friday, June 5, 2020 - 10:52:08 AM
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- HAL Id : in2p3-01152679, version 1
- DOI : 10.1103/PhysRevC.91.054313
Citation
M. Ciemala, M. Kmiecik, A. Maj, K. Mazurek, A. Bracco, et al.. Giant dipole resonance built on hot rotating nuclei produced during evaporation of light particles
from the $^{88}$Mo compound nucleus. Physical Review C, American Physical Society, 2015, 91, pp.054313. ⟨10.1103/PhysRevC.91.054313⟩. ⟨in2p3-01152679⟩
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