Title: First isomeric quadrupole moment measured in fragmentation reactions: The case of Fe-61(m)(9/2(+))
Authors: Vermeulen, Nele ×
Chamoli, S. K
Daugas, J. M
Hass, M
Balabanski, D. L
Delaroche, J. P
de Oliveira-Santos, F
Georgiev, G
Girod, M
Goldring, G
Goutte, H
Grevy, S
Matea, I
Morel, P
Singh, B. S. Nara
Penionzkevich, Yu.-E
Perrot, L
Perru, O
Peru, S
Roig, O
Sarazin, F
Simpson, G. S
Sobolev, Yu
Stefan, I
Stodel, C
Yordanov, D. T
Neyens, Gerda #
Issue Date: May-2007
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear physics vol:75 issue:5 pages:1-4
Article number: 051302(R)
Abstract: This paper demonstrates the feasibility of quadrupole moment measurements on isomeric levels populated in projectile fragmentation reactions. The neutron-rich Fe-61(9/2(+)) [E-*= 861 keV, T-1/2= 239(5) ns] isomer was produced and spin aligned by the intermediate energy fragmentation of a Ni-64 beam and implanted in a Cd single crystal. Its spectroscopic quadrupole moment Q(s)=41(6) e fm(2) agrees with mean-field based calculations using the finite-range Gogny force, suggesting a moderately deformed shape characterized by an intrinsic charge quadrupole moment Q(0)=-85 e fm(2) or Q(0)=+115 e fm(2). The present measurement paves the way for future determinations of isomeric quadrupole moments in more exotic nuclei.
ISSN: 2469-9985
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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