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Claes Fahlander

Professor emeritus

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Evolution and Destruction of Shapes in 59Cu

Author

  • Claes Fahlander
  • Corina Andreoiu
  • Dirk Rudolph
  • D.G. Sarantites
  • C.E. Svensson

Summary, in English

An extensive high-spin level scheme has been established in <sup>59</sup>Cu using a heavy-ion fusion evaporation reaction and the GAMMASPHERE multidetector array in conjunction with MICROBALL. Next to the spherical states at low excitation energy a large number of regular sequences of high-energy γ-ray transitions have been observed, which form rotational bands with various degree of deformation. For the yrast superdeformed band about 90% of the intensity of the discrete γ decay-out, distributed over about 30 decay paths, is known, which allows for a detailed study of this decay-out process. Two of the deformed bands were found to decay by prompt proton emission into two different spherical states of <sup>58</sup>Ni, in direct competition with the γ decay-out process

Department/s

  • Nuclear physics

Publishing year

2002

Language

English

Pages

393-400

Publication/Series

Challenges of Nuclear Structure. Proceedings of the 7th International Spring Seminar on Nuclear Physics

Document type

Conference paper

Publisher

World Scientific Publishing

Topic

  • Subatomic Physics

Keywords

  • discrete gamma decay
  • yrast superdeformed band
  • nuclear deformation
  • rotational bands
  • high energy gamma ray transitions
  • low excitation energy
  • spherical states
  • heavy-ion fusion evaporation reaction
  • high spin level scheme
  • <sup>59</sup>Cu
  • shell effect
  • nuclear spin
  • kinematic moments-of inertia
  • parity
  • level density
  • B2 band
  • <sup>40</sup>Ca(<sup>28</sup>Si
  • B1 band
  • deformed band
  • prompt proton emission decay
  • <sup>58</sup>Ni
  • gamma decay-out process
  • shape destruction
  • shape evolution
  • X)<sup>59</sup>Cu

Conference name

Challenges of Nuclear Structure. Proceedings of the 7th International Spring Seminar on Nuclear Physics

Conference date

2001-05-27 - 2001-05-31

Conference place

Maiori, Italy

Status

Published

Research group

  • Nuclear Structure

ISBN/ISSN/Other

  • ISBN: 981-02-4725-7