https://doi.org/10.1140/epja/i2008-10578-5
Regular Article - Experimental Physics
Beta-decay branching ratios of 62Ga
1
Centre d'Etudes Nucléaires de Bordeaux Gradignan, Université Bordeaux 1 - UMR 5797 CNRS/IN2P3, Chemin du Solarium, BP 120, 33175, Gradignan Cedex, France
2
Department of Physics, University of Jyväskylä, P.O. Box 35, FIN-40351, Jyväskylä, Finland
3
Faculté de Physique, USTHB, El Alia, B.P. 32, 16111, Bab Ezzouar, Alger, Algeria
4
Grand Accélérateur National d'Ions Lourds, CEA/DSM - CNRS/IN2P3, B.P. 55027, F-14076, Caen Cedex 5, France
5
Laboratoire de Physique Corpusculaire, IN2P3-CNRS, ISMRA et Université de Caen, 6 bvd Maréchal Juin, 14050, Caen Cedex, France
* e-mail: blank@cenbg.in2p3.fr
Received:
22
January
2008
Accepted:
11
April
2008
Published online:
2
May
2008
Beta-decay branching ratios of 62Ga have been measured at the IGISOL facility of the Accelerator Laboratory of the University of Jyväskylä. 62Ga is one of the heavier T z = 0 , 0+ → 0+ β -emitting nuclides used to determine the vector coupling constant of the weak interaction and the Vud quark-mixing matrix element. For part of the experimental studies presented here, the JYFLTRAP facility has been employed to prepare isotopically pure beams of 62Ga . The branching ratio obtained, BR = 99.893(24) %, for the super-allowed branch is in agreement with previous measurements and allows to determine the ft value and the universal Ft value for the super-allowed β -decay of 62Ga .
PACS: 21.10.-k Properties of nuclei; nuclear energy levels – / 27.50.+e 59≤A≤89 – / 23.40.Bw Weak-interaction and lepton (including neutrino) aspects –
© Società Italiana di Fisica and Springer-Verlag, 2008
