6533b821fe1ef96bd127c421

RESEARCH PRODUCT

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

V.-v. ElomaaB. BlankI. MateaSami Rinta-antilaA. BeyT. SonodaTommi EronenIain MooreJ. GiovinazzoAnu KankainenSaidur RahamanCarole DossatG. CanchelAri JokinenN. AdimiJuha ÄYstöJani HakalaHeikki PenttiläAntti SaastamoinenUlrike Hager

subject

Nuclear and High Energy PhysicsMass excessQ valuePenning trapCyclotronFOS: Physical sciences27.50.+e; 23.40.-s; 24.80.+g; 21.10.Dr[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences7. Clean energyIonlaw.inventionNuclear physicslawDouble beta decayFt value0103 physical sciencesNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentPhysicsRadionuclide010308 nuclear & particles physicsBeta decayQ-valueAtomic massAtomic mass

description

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.

10.1016/j.physletb.2006.03.062http://hal.in2p3.fr/in2p3-00079539