Electron-capture branch of Tc100 and tests of nuclear wave functions for double-β decays

S. K. L. Sjue, D. Melconian, A. García, I. Ahmad, A. Algora, J. Äystö, V.-V. Elomaa, T. Eronen, J. Hakala, S. Hoedl, A. Kankainen, T. Kessler, I. D. Moore, F. Naab, H. Penttilä, S. Rahaman, A. Saastamoinen, H. E. Swanson, C. Weber, S. Triambak, and K. Deryckx
Phys. Rev. C 78, 064317 – Published 30 December 2008

Abstract

We present a measurement of the electron-capture branch of Tc100. Our value, B(EC)=(2.6±0.4)×105, implies that the Mo100 neutrino absorption cross section to the ground state of Tc100 is roughly 50% larger than previously thought. Disagreement between the experimental value and QRPA calculations relevant to double-β decay matrix elements persists. We find agreement with previous measurements of the 539.5- and 590.8-keV γ-ray intensities.

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  • Received 22 September 2008

DOI:https://doi.org/10.1103/PhysRevC.78.064317

©2008 American Physical Society

Authors & Affiliations

S. K. L. Sjue1, D. Melconian2, A. García1, I. Ahmad3, A. Algora4,5, J. Äystö6, V.-V. Elomaa6, T. Eronen6, J. Hakala6, S. Hoedl1, A. Kankainen6, T. Kessler6, I. D. Moore6, F. Naab7, H. Penttilä6, S. Rahaman6, A. Saastamoinen6, H. E. Swanson1, C. Weber6, S. Triambak1, and K. Deryckx1

  • 1Physics Department, University of Washington, Seattle, Washington 98195, USA
  • 2Physics Department, Texas A&M University, College Station, Texas 77843, USA
  • 3Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 4Instituto de Fisica Corpuscular, University of Valencia, Valencia, Spain
  • 5Institute of Nuclear Research, Hungarian Academy of Sciences, Debrecen, Hungary
  • 6Department of Physics, University of Jyväskylä, Jyväskylä, Finland
  • 7Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA

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Vol. 78, Iss. 6 — December 2008

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