Lifetimes of high-spin states in Kr-74

J. J. Valiente-Dobon*, C. E. Svensson, T. Steinhardt, A. V. Afanasjev, I. Ragnarsson, C. Andreoiu, R. A. E. Austin, M. P. Carpenter, D. Dashdorj, G. de Angelis, F. Doenau, J. Eberth, E. Farnea, S. J. Freeman, A. Gadea, P. E. Garrett, A. Goergen, G. F. Grinyer, B. Hyland, D. JenkinsF. Johnston-Theasby, P. Joshi, A. Jungclaus, K. P. Lieb, A. O. Macchiavelli, F. Moore, G. Mukherjee, A. A. Phillips, C. Plettner, W. Reviol, D. Sarantites, H. Schnare, M. A. Schumaker, R. Schwengner, D. Seweryniak, I. Stefanescu, M B Smith, O. Thelen, R. Wadsworth

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High-spin states in Kr-74(36)38 were studied using the Ca-40(Ca-40,alpha 2p)Kr-74 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 1(max).

Original languageEnglish
Title of host publicationFrontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR
EditorsS Harissopulos, P Demetriou, R Julin
Place of PublicationMELVILLE
PublisherAmerican Institute of Physics
Pages283-287
Number of pages5
ISBN (Print)0-7354-0323-6
Publication statusPublished - 2006
EventInternational Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR) - Kos, Greece
Duration: 12 Sept 200517 Sept 2005

Publication series

NameAIP CONFERENCE PROCEEDINGS
PublisherAMER INST PHYSICS
Volume831
ISSN (Print)0094-243X

Conference

ConferenceInternational Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR)
Country/TerritoryGreece
CityKos
Period12/09/0517/09/05

Keywords

  • DESIGN
  • DEVICE
  • DETECTOR
  • COLLECTIVITY
  • high spins
  • MICROBALL
  • lifetimes
  • GAMMASPHERE
  • Kr-74
  • TERMINATION
  • ROTATIONAL BANDS

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