Robust test of E(5) symmetry in {sup 128}Xe

Journal Article · Tue Dec 15 04:00:00 EST 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.061304· OSTI ID:21296559

Coquard, L; Pietralla, N; Leske, J; Moeller, O ^[1]; Ahn, T ^[1]; Rainovski, G ^[2]; Bettermann, L; Rother, W ^[3]; Carpenter, M P; Janssens, R V. F.; Lister, C J; Zhu, S ^[4]; Werner, V ^[5]

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1. Institut fuer Kernphysik, Technische Universitaet Darmstadt, D-64289 Darmstadt (Germany)
2. Faculty of Physics, St. Kliment Ohridski University of Sofia, 1164 Sofia (Bulgaria)
3. Institut fuer Kernphysik, Universitaet Koeln, Zuelpicher Str. 77, D-50937 Koeln (Germany)
4. Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States)
5. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520 (United States)

Low-lying collectively excited states of {sup 128}Xe were investigated by {gamma}-ray spectroscopy following the {sup 12}C({sup 128}Xe,{sup 128}Xe*){sup 12}C projectile Coulomb excitation reaction. Nineteen absolute E2 transition strengths were obtained including the first measurement of the critical B(E2) decays from the second and third J{sup {pi}}=0{sup +} states. These data are compared with the theoretical predictions of the critical point symmetry E(5) and allow us to conclude that {sup 128}Xe is not an E(5) nucleus as previously suggested, leaving {sup 130}Xe as the most likely candidate among the Xe isotopes.

• OSTI ID: 21296559
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 TARGET
COULOMB EXCITATION
DECAY
E2-TRANSITIONS
EXCITED STATES
FORECASTING
GAMMA SPECTROSCOPY
PROJECTILES
SYMMETRY
XENON 128
XENON 130