6533b872fe1ef96bd12d2d98
RESEARCH PRODUCT
AccurateQValue for theSn112Double-βDecay and its Implication for the Search of the Neutrino Mass
V.-v. ElomaaChristine WeberAnu KankainenAri JokinenJuho RissanenJouni SuhonenJani HakalaSaidur RahamanTommi EronenJuha ÄYstösubject
PhysicsNuclear physicsQ valueDouble beta decayExcited stateGeneral Physics and AstronomyResonanceNeutrinoAtomic physicsEnergy (signal processing)Radioactive decayLeptondescription
The $Q$ value of the $^{112}\mathrm{Sn}$ double-beta decay was determined by using a Penning trap mass spectrometer. The new atomic-mass difference between $^{112}\mathrm{Sn}$ and $^{112}\mathrm{Cd}$ of 1919.82(16) keV is 25 times more precise than the previous value of 1919(4) keV. This result removes the possibility of enhanced resonance capture of the neutrinoless double-EC decay to the excited ${0}^{+}$ state at 1871.00(19) keV in $^{112}\mathrm{Cd}$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-07-24 | Physical Review Letters |