Lifetimes of high-spin states in 74Kr

Journal Article · Wed Apr 26 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2200940· OSTI ID:20798548

Valiente-Dobon, J J ^[1]; Svensson, C E; Grinyer, G F; Hyland, B; Phillips, A A; Schumaker, M A ^[1]; Steinhardt, T; Eberth, J; Stefanescu, I; Thelen, O ^[2]; Afanasjev, A V ^[3]; Ragnarsson, I ^[4]; Andreoiu, C ^[1]; Austin, R A. E. ^[5]; Carpenter, M P; Freeman, S J; Moore, F; Mukherjee, G; Seweryniak, D ^[6]; Dashdorj, D ^[7]

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1. Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1 (Canada)
2. Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicher Strasse 77, D-50937 Cologne (Germany)
3. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
4. Lund Institute of Technology, P.O. Box 118, S-221 00 Lund (Sweden)
5. McMaster University, Hamilton, Ontario L8S 4K1 (Canada)
6. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
7. North Carolina State University, Raleigh, North Carolina 27695 (United States)

High-spin states in {sub 36}{sup 74}Kr{sub 38} were studied using the 40Ca(40Ca,{alpha}2p)74Kr fusion evaporation reaction at a beam energy of 165 MeV with GAMMASPHERE and MICROBALL and at a beam energy of 185 MeV with EUROBALL and ISIS multi-detector arrays. Lifetimes of the high-spin states for the ground-state band and the favoured negative-parity band have been determined using the Doppler-shift attenuation method. The deduced transition quadrupole moments show a marginal decrease as a function of spin, suggesting that the rotational bands do not terminate at the maximum spin Imax.

• OSTI ID: 20798548
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 831; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
CALCIUM 40 REACTIONS
CALCIUM 40 TARGET
DSA METHOD
GROUND STATES
HIGH SPIN STATES
KRYPTON 74
LIFETIME
MEV RANGE
NUCLEAR ELECTRIC MOMENTS
PARITY
PROTONS
QUADRUPOLE MOMENTS
ROTATIONAL STATES
SPIN