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Isomeric states in 253No and 253Fm

  • S. AntalicEmail author
  • F. P. Heßberger
  • D. Ackermann
  • S. Heinz
  • S. Hofmann
  • Z. Kalaninová
  • B. Kindler
  • J. Khuyagbaatar
  • I. Kojouharov
  • P. Kuusiniemi
  • M. Leino
  • B. Lommel
  • R. Mann
  • K. Nishio
  • Š. Šáro
  • B. Streicher
  • B. Sulignano
  • M. Venhart
Regular Article - Experimental Physics

Abstract.

Nuclear structure and decay of isomeric states in 253No were investigated. The isotope was produced by the reaction 48Ca + 207Pb . The excitation energy of the known single-particle isomeric state ( 5/2+[622] was measured by delayed coincidences between γ-rays and implanted evaporation residues and was placed into the level scheme. In addition, decay of a high-lying multi-quasiparticle isomer in 253No was studied using e -γ coincidence measurements. A rotational band populated by its de-excitation was identified in 253No . A new isomeric state in 253Fm was observed and a partial-level scheme for this isotope is suggested. In addition γ transitions from excited levels are reported for 253Md .

Keywords

Isomeric State Rotational Band Band Head Reaction 48Ca Decay Study 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • S. Antalic
    • 1
    Email author
  • F. P. Heßberger
    • 2
    • 3
  • D. Ackermann
    • 2
  • S. Heinz
    • 2
  • S. Hofmann
    • 2
    • 4
  • Z. Kalaninová
    • 1
  • B. Kindler
    • 2
  • J. Khuyagbaatar
    • 2
  • I. Kojouharov
    • 2
  • P. Kuusiniemi
    • 2
  • M. Leino
    • 5
  • B. Lommel
    • 2
  • R. Mann
    • 2
  • K. Nishio
    • 6
  • Š. Šáro
    • 1
  • B. Streicher
    • 1
    • 2
  • B. Sulignano
    • 2
  • M. Venhart
    • 1
  1. 1.Department of Nuclear Physics and BiophysicsComenius UniversityBratislavaSlovakia
  2. 2.GSI-Helmholtzzentrum für Schwerionenforschung GmbHDarmstadtGermany
  3. 3.Helmholtz Institut MainzMainzGermany
  4. 4.Institut für KernphysikGoethe-UniversitätFrankfurt am MainGermany
  5. 5.University of JyväskyläJyväskyläFinland
  6. 6.Advanced Science Research CenterJapan Atomic Energy AgencyIbarakiJapan

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