High-spin rotational structures in {sup 76}Kr

Journal Article · Tue Mar 01 04:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.71.034311· OSTI ID:20695992

Valiente-Dobon, J J; Svensson, C E; Finlay, P; Grinyer, G F; Hyland, B; Phillips, A A; Schumaker, M A ^[1]; O'Leary, C D; Jenkins, D; Johnston-Theasby, F; Joshi, P; Kelsall, N S; Wadsworth, R ^[2]; Ragnarsson, I ^[3]; Andreoiu, C ^[1]; Appelbe, D E ^[4]; Austin, R A.E.; Cameron, J A; Waddington, J C ^[5]; Ball, G C ^[6]

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1. Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1 (Canada)
2. Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)
3. Department of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund (Sweden)
4. CLRC Daresbury Laboratory, Daresbury, Warrington WA4 4AD (United Kingdom)
5. Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4K1 (Canada)
6. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3 (Canada); and others

High-spin states in {sup 36}{sub 76}Kr{sub 40} have been populated in the {sup 40}Ca({sup 40}Ca,4p){sup 76}Kr fusion-evaporation reaction at a beam energy of 165 MeV and studied using the Gammasphere and Microball multidetector arrays. The ground-state band and two signature-split negative parity bands of {sup 76}Kr have been extended to {approx}30({Dirac_h}/2{pi}). Lifetime measurements using the Doppler-shift attenuation method show that the transition quadrupole moment of these three bands decrease as they approach their maximum-spin states. Two signatures of a new rotational structure with remarkably rigid rotational behavior have been identified. The high-spin properties of these rotational bands are analyzed within the framework of configuration-dependent cranked Nilsson-Strutinsky calculations.

• OSTI ID: 20695992
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 71; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40 REACTIONS
CALCIUM 40 TARGET
CRANKING MODEL
DSA METHOD
GROUND STATES
HEAVY ION FUSION REACTIONS
HIGH SPIN STATES
KRYPTON 76
LIFETIME
MEV RANGE
PARITY
QUADRUPOLE MOMENTS
ROTATIONAL STATES
SHELL MODELS
SPIN