Title: g-factor measurements at RISING: The cases of Sn-127 and Sn-128
Authors: Atanasova, L ×
Balabanski, D. L
Chamoli, S. K
Hass, M
Simpson, G. S
Bazzacco, D
Becker, F
Bednarczyk, P
Benzoni, G
Blasi, N
Blazhev, A
Bracco, A
Brandau, C
Caceres, L
Camera, F
Crespi, F. C. L
Detistov, P
Doornenbal, P
Fahlander, C
Farnea, E
Georgiev, G
Gerl, J
Gladnishki, K. A
Gorska, M
Grebosz, J
Hoischen, R
Ilie, G
Ionescu-Bujor, M
Iordachescu, A
Jungclaus, A
Lo Bianco, G
Kmiecik, M
Kojouharov, I
Kurz, N
Lakshmi, S
Lozeva, R
Maj, A
Montanari, D
Neyens, Gerda
Pfuetzner, M
Pietri, S
Podolyak, Zs
Prokopowicz, W
Rudolph, D
Rusev, G
Saito, T. R
Saltarelli, A
Schaffner, H
Schwengner, R
Tashenov, S
Valiente-Dobon, J. J
Vermeulen, Nele
Walker, J
Werner-Malento, E
Wieland, O
Wollersheim, H. J
Grawe, H
Hjorth-Jensen, M #
Issue Date: Aug-2010
Publisher: Editions de Physique
Series Title: Europhysics Letters vol:91 issue:4 pages:1-6
Article number: 42001
Abstract: We report on g-factor measurements of the 19/2(+) T-1/2 = 4.5(3) mu s isomer in Sn-127 and the 10(+) T-1/2 = 2.69(23) mu s isomer in Sn-128. These isomers were produced and spin-aligned in relativistic heavy-ion fragmentation at GSI and were selected and separated by the GSI fragment separator ( FRS). The gamma-rays of the isomeric decay were detected by the RISING gamma-ray spectrometer. The method of time-differential perturbed angular distributions was utilized. The measured g-factors, g(19/2(+); Sn-127) =-0.17(2) and g(10(+); Sn-128)=-0.20(4), are compared with shell model calculations. The measured g-factors confirm the predominantly nu h(11/2)(-2) and nu(s(1/2)(-1) h(11/2)(-2)) character of the 10(+) and 19/2(-) isomers in Sn-128 and Sn-127, respectively. The results demonstrate the feasibility of the method for similar measurements in exotic neutron-rich nuclei. Copyright (C) EPLA, 2010
ISSN: 0295-5075
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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