Q-value of the superallowed beta decay of Ga-62

T. Eronen; V. Elomaa; U. Hager; J. Hakala; A. Jokinen; I. Moore; H. Penttila; S. Rahaman; S. Rinta-Antila; A. Saastamoinen; T. Sonoda; J. Aysto; A. Bey; B. Blank; G. Canchel; C. Dossat; J. Giovinazzo; I. Matea; N. Adimi

doi:10.1016/j.physletb.2006.03.062

arXiv · nucl-ex/0512010

Q-value of the superallowed beta decay of Ga-62

T. Eronen·V. Elomaa·U. Hager·J. Hakala·A. Jokinen·I. Moore·H. Penttila·S. Rahaman·S. Rinta-Antila·A. Saastamoinen·T. Sonoda·J. Aysto·A. Bey·B. Blank·G. Canchel·C. Dossat·J. Giovinazzo·I. Matea·N. Adimi

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Abstract

Masses of the radioactive isotopes 62Ga, 62Zn and 62Cu have been measured at the JYFLTRAP facility with a relative precision of better than 18 ppb. 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 Ft-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.

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T. Eronen, V. Elomaa, U. Hager, J. Hakala, A. Jokinen, I. Moore, H. Penttila, S. Rahaman, S. Rinta-Antila, A. Saastamoinen, T. Sonoda, J. Aysto, A. Bey, B. Blank, G. Canchel, C. Dossat, J. Giovinazzo, I. Matea, N. Adimi. 2005-12-12. Q-value of the superallowed beta decay of Ga-62. https://doi.org/10.1016/j.physletb.2006.03.062

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