Evolution and Destruction of Shapes in 59Cu

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

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

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • 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
Original languageEnglish
Title of host publicationChallenges of Nuclear Structure. Proceedings of the 7th International Spring Seminar on Nuclear Physics
PublisherWorld Scientific
Pages393-400
ISBN (Print)981-02-4725-7
Publication statusPublished - 2002
Publication categoryResearch
Peer-reviewedYes
EventChallenges of Nuclear Structure. Proceedings of the 7th International Spring Seminar on Nuclear Physics - Maiori, Italy
Duration: 2001 May 272001 May 31

Conference

ConferenceChallenges of Nuclear Structure. Proceedings of the 7th International Spring Seminar on Nuclear Physics
CountryItaly
CityMaiori
Period2001/05/272001/05/31