Half-life, branching-ratio, and Q-value measurement for the superallowed 0+0+β+ emitter Ti42

T. Kurtukian Nieto, J. Souin, T. Eronen, L. Audirac, J. Äystö, B. Blank, V. -V. Elomaa, J. Giovinazzo, U. Hager, J. Hakala, A. Jokinen, A. Kankainen, P. Karvonen, T. Kessler, I. D. Moore, H. Penttilä, S. Rahaman, M. Reponen, S. Rinta-Antila, J. Rissanen, A. Saastamoinen, T. Sonoda, and C. Weber
Phys. Rev. C 80, 035502 – Published 8 September 2009

Abstract

The half-life, the branching ratio, and the decay Q value of the superallowed β emitter Ti42 were measured in an experiment performed at the JYFLTRAP facility of the Accelerator Laboratory of the University of Jyväskylä. Ti42 is the heaviest Tz=1 nucleus for which high-precision measurements of these quantities have been tried. The half-life (T1/2=208.14±0.45 ms) and the Q value [QEC=7016.83(25) keV] are close to or reach the required precision of about 0.1%. The branching ratio for the superallowed decay branch [BR=47.7(12)%], a by-product of the half-life measurement, does not reach the necessary precision yet. Nonetheless, these results allow one to determine the experimental ft value and the corrected Ft value to be 3114(79) and 3122(79) s, respectively.

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  • Received 26 July 2009

DOI:https://doi.org/10.1103/PhysRevC.80.035502

©2009 American Physical Society

Authors & Affiliations

T. Kurtukian Nieto1,*, J. Souin1, T. Eronen2, L. Audirac1, J. Äystö2, B. Blank1, V. -V. Elomaa2, J. Giovinazzo1, U. Hager2,†, J. Hakala2, A. Jokinen2, A. Kankainen2, P. Karvonen2, T. Kessler2,‡, I. D. Moore2, H. Penttilä2, S. Rahaman2,§, M. Reponen2, S. Rinta-Antila3, J. Rissanen2, A. Saastamoinen2, T. Sonoda2,∥, and C. Weber2,¶

  • 1Centre d'Études Nucléaires de Bordeaux Gradignan-Université Bordeaux 1-UMR 5797 CNRS/IN2P3, Chemin du Solarium, BP 120, F-33175 Gradignan, France
  • 2Department of Physics, University of Jyväskylä, P. O. Box 35, FI-40014 Jyväskylä, Finland
  • 3Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom

  • *kurtukia@cenbg.in2p3.fr
  • Present address: TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3, Canada.
  • Present address: Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany.
  • §Present address: Physics Division, P-23, Mail Stop H803, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Present address: RIKEN Atomic Physics Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Present address: Fakultät für Physik (LMU), Am Coulombwall 1, D-85748 Garching, Germany.

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Vol. 80, Iss. 3 — September 2009

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