Half-life, branching-ratio, and Q-value measurement for the superallowed 0{sup +}{yields}0{sup +}{beta}{sup +} emitter {sup 42}Ti
- Centre d'Etudes Nucleaires de Bordeaux Gradignan-Universite Bordeaux 1-UMR 5797 CNRS/IN2P3, Chemin du Solarium, BP 120, F-33175 Gradignan (France)
- Department of Physics, University of Jyvaeskylae, P. O. Box 35, FI-40014 Jyvaeskylae (Finland)
The half-life, the branching ratio, and the decay Q value of the superallowed {beta} emitter {sup 42}Ti were measured in an experiment performed at the JYFLTRAP facility of the Accelerator Laboratory of the University of Jyvaeskylae. {sup 42}Ti is the heaviest T{sub z}=-1 nucleus for which high-precision measurements of these quantities have been tried. The half-life (T{sub 1/2}=208.14{+-}0.45 ms) and the Q value [Q{sub EC}=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.
- OSTI ID:
- 21293875
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 80, Issue 3; Other Information: DOI: 10.1103/PhysRevC.80.035502; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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