Measurement of the half-life of the first excited state of Pb205

Z. Krečak, M. Krčmar, A. Ljubičić, B. A. Logan, D. B. Isabelle, and J. Vernois
Phys. Rev. C 50, 1319 – Published 1 September 1994
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Abstract

The inverse β decay Tl205(ν,e)205Pb can be used to investigate the solar neutrino flux averaged over the last several million years. The inverse β decay proceeds dominantly via the 2.3 keV level of the Pb205 and an accurate estimate of the cross section depends on our knowledge of the structure of the 2.3 keV level. We have made the first measurement of the half-life for the decay of the 2.3 keV level to the Pb205 ground state. Our result is T1/2=24.2±0.4 μs and can be used to improve our knowledge of the structure of the two Pb205 states.

  • Received 14 March 1994

DOI:https://doi.org/10.1103/PhysRevC.50.1319

©1994 American Physical Society

Authors & Affiliations

Z. Krečak, M. Krčmar, and A. Ljubičić

  • Rud/er Bošković Institute, P.O.B. 1016, 41001 Zagreb, Croatia

B. A. Logan

  • Ottawa-Carleton Institute for Physics, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5

D. B. Isabelle and J. Vernois

  • CNRS(enCenter D’Etudes et de Recherches par Irradiation 3A, Rue de la Ferollerie, F.45071 Orleans Cedex2, France

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Vol. 50, Iss. 3 — September 1994

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