Nonradiative decay of the low-lying nuclear isomer 229mTh(3.5 eV) in a metal

  • E. V. Tkalya
Fields, Particles, and Nuclei


A new nonradiative decay channel for the anomalously low-lying isomeric level 3/2+ (3.5±1.0 eV) of the 229Th nucleus in a metal via the conduction electrons is examined. The lifetime of the isomer in a metal is calculated. An explanation is given for the experimental results of S. B. Utter et al., Phys. Rev. Lett. 82, 505 (1999), where the optical radiation spectrum of the indicated isomer was investigated.

PACS numbers

23.20.Nx 23.90.+w 


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Copyright information

© MAIK "Nauka/Interperiodica" 1999

Authors and Affiliations

  • E. V. Tkalya
    • 1
  1. 1.Scientific-Research Institute of Nuclear PhysicsM. V. Lomonosov Moscow State UniversityMoscowRussia

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