Conference papers
Identification of low-energy isovector octupole states in $^{144}$Nd
M. Thurauf
M. Scheck C. Bernards
A. Blanc
1
N. Cooper
G. de France
2
M. Jentschel
1
J. Jolie
O. Kaleja
U. Koster
1
T. Kroll
P. Mutti
1
G.S. Simpson
3
T. Soldner
1
M. Tezgel
W. Urban
J. Vanhoy
M. Werner
V. Werner
K.O. Zell
1
ILL - Institut Laue-Langevin (6, rue Jules Horowitz BP 156 38042 Grenoble Cedex 9 - France)
- ILL (France)
2
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)
3
LPSC - Laboratoire de Physique Subatomique et de Cosmologie (53 avenue des Martyrs - 38026 Grenoble Cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
- UGA [2016-2019] - Université Grenoble Alpes [2016-2019] (CS 40700 - 38058 Grenoble cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5821 (France)
Abstract : Recently, first candidates for low-lying isovector states in the octupole sector were suggested. The unambiguous identification of those states will contribute to the decomposition of the octupole-octupole residual interaction in an isoscalar and isovector part. This will help us understand the octupole degree of freedom. In 144Nd the 3− state at 2778 keV is a good candidate for such a "mixed-symmetry'' octupole state. In order to clarify the nature of this state, a 143Nd(n, γ)-experiment was conducted with the EXILL-setup. Following neutron capture the 3− states are populated and EXILL provides the opportunity to determine the multipole-mixing ratios of the 3i −→31 - transitions. For the transition from the "mixed-symmetry" octupole state to the symmetric 31 − state we expect a strong M1 component.
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http://hal.in2p3.fr/in2p3-01346790
Contributor : Michel Lion <>
Submitted on : Tuesday, July 19, 2016 - 3:51:52 PM
Last modification on : Thursday, November 19, 2020 - 1:01:42 PM
Contributor : Michel Lion <>
Submitted on : Tuesday, July 19, 2016 - 3:51:52 PM
Last modification on : Thursday, November 19, 2020 - 1:01:42 PM
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- HAL Id : in2p3-01346790, version 1
- DOI : 10.1088/1742-6596/724/1/012050
Citation
M. Thurauf, M. Scheck C. Bernards, A. Blanc, N. Cooper, G. de France, et al.. Identification of low-energy isovector octupole states in $^{144}$Nd. XXI International School on Nuclear Physics and Applications & International Symposium on Exotic Nuclei, Sep 2015, Varna, Bulgaria. pp.012050, ⟨10.1088/1742-6596/724/1/012050⟩. ⟨in2p3-01346790⟩
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