6533b82dfe1ef96bd1291608

RESEARCH PRODUCT

Q values of the 76Ge and 100Mo double-beta decays

Jouni SuhonenAri JokinenSaidur RahamanJuha ÄYstöV.-v. ElomaaAnu KankainenChristine WeberJuhani JulinTommi EronenJani HakalaAntti Saastamoinen

subject

PhysicsNuclear and High Energy PhysicsParticle physicsDecay schemeQ valuePenning trapDouble-beta decayPenning trapQ-valueBeta decayPhase-space integralNuclear physicsNeutrino massPhase spaceDouble beta decayBeta (plasma physics)Value (mathematics)

description

Abstract Penning trap measurements using mixed beams of 76Ge–76Se and 100Mo–100Ru have been utilized to determine the double-beta decay Q-values of 76Ge and 100Mo with uncertainties less than 200 eV. The value for 76Ge, 2039.04(16) keV is in agreement with the published SMILETRAP value, 2039.006(50) keV. The new value for 100Mo, 3034.40(17) keV is 30 times more precise than the previous literature value, sufficient for the ongoing neutrinoless double-beta decay searches in 100Mo. Moreover, the precise Q-value is used to calculate the phase-space integrals and the experimental nuclear matrix element of double-beta decay.

yearjournalcountryeditionlanguage
2008-04-01Physics Letters B
https://doi.org/10.1016/j.physletb.2008.02.047