Q-value of the superallowed β decay of 62Ga
/ Authors
T. Eronen, V. Elomaa, U. Hager, J. Hakala, A. Jokinen, I. Moore, H. Penttila, S. Rahaman, S. Rinta-Antila, A. Saastamoinen
and 14 more authors
T. Sonoda, J. Aysto, A. Bey, B. Blank, G. Canchel, C. Dossat, J. Giovinazzo, I. Matea, N. A. Jyfl, Finland., Cen Bordeaux-Gradignan, France., Usthb, Algeria.
/ Abstract
Abstract Masses of the radioactive isotopes 62Ga, 62Zn and 62Cu have been measured at the JYFLTRAP facility with a relative precision of better than 1.8 × 10 −8 . A Q EC value of ( 9181.07 ± 0.54 ) keV for the superallowed decay of 62Ga is obtained from the measured cyclotron frequency ratios of 62Ga 62Zn, 62Ga 62Ni and 62Zn 62Ni ions. The resulting F t -value supports the validity of the conserved vector current hypothesis (CVC). The mass excess values measured were ( − 51986.5 ± 1.0 ) keV for 62Ga, ( − 61167.9 ± 0.9 ) keV for 62Zn and ( − 62787.2 ± 0.9 ) keV for 62Cu.
Journal: Physics Letters B