Title: Coulomb excitation of Ga-73
Authors: Diriken, Jan ×
Stefanescu, Irina
Balabanski, Dimiter
Blasi, N.
Blazhev, Andrei
Bree, Nick
Cederkall, Joakim
Cocolios, Thomas Elias
Davinson, Tom
Eberth, Jurgen
Ekstrom, Andreas
Fedorov, D.V.
Fedosseev, Valentin
Fraile, Luis Manuel
Franchoo, Serge
Georgiev, Georgi
Gladnishki, K.
Huyse, Marc
Ivanov, Oleg
Ivanov, V.S.
Iwanicki, J.
Jolie, Jan
Konstantinopoulos, T.
Kroll, Thorsten
Krücken, Reiner
Kölster, Ulli
Lagoyannis, A.
Lo Bianco, Giovanni
Maierbeck, Peter
Marsh, Bruce
Napiorkowski, Pavel
Patronis, Nikolaos
Pauwels, Dieter
Reiter, Peter
Seliverstov, Maxim
Sletten, Georg
Van de Walle, Jarno
Van Duppen, Piet
Voulot, D.
Voulot, Didier
Walters, William
Warr, Nigel
Wenander, Frederik
Wrzosek, Katarina #
Issue Date: Dec-2010
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear Physics vol:82 issue:6 pages:064309-1-064309-6
Article number: 064309
Abstract: The B(E2; Ii → If ) values for transitions in 71Ga and 73Ga were deduced from a Coulomb excitation experiment at the safe energy of 2.95 MeV/nucleon using post-accelerated beams of 71,73Ga at the REX-ISOLDE on-line isotope mass separator facility. The emitted γ rays were detected by the MINIBALL γ -detector array, and B(E2; Ii → If ) values were obtained from the yields normalized to the known strength of the 2+ → 0+ transition in the 120Sn target. The comparison of these new results with the data of less neutron-rich gallium isotopes shows a shift of the E2 collectivity toward lower excitation energy when adding neutrons beyond N = 40. This supports conclusions from previous studies of the gallium isotopes, which indicated a structural change in this isotopic chain between N = 40 and 42. Combined with recent measurements from collinear laser spectroscopy showing a 1/2− spin and parity for the ground state, the extracted results revealed evidence for a 1/2−, 3/2− doublet near the ground state in 73Ga differing by at most 0.8 keV in energy.
ISSN: 0556-2813
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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