Masses of 130Te, 130Xe and double-beta-decay Q-value of 130Te

Understand

The atomic masses of 130Te and 130Xe have been obtained by measuring cyclotron frequency ratios of pairs of triply-charged ions simultaneously trapped in a Penning trap.

• The results with one standard deviation uncertainty are M(130Te) = 129.906 222 744(16) u and M(130Xe) = 129.903 509 351(15) u.
• Allowing for cancellation of systematic errors in the mass difference, the double-beta-decay Q-value, required for searches for the neutrino-less double-beta-decay of 130Te, is determined to be Qbb (130Te) = 2527.518(13) keV.