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

Matthew Redshaw; Brianna J Mount; Edmund G Myers; Frank T Avignone 3rd

doi:10.1103/PhysRevLett.102.212502

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

Phys Rev Lett. 2009 May 29;102(21):212502. doi: 10.1103/PhysRevLett.102.212502. Epub 2009 May 29.

Authors

Matthew Redshaw¹, Brianna J Mount, Edmund G Myers, Frank T Avignone 3rd

Affiliation

¹ Department of Physics, Florida State University, Tallahassee, Florida 32306-4350, USA.

PMID: 19519099
DOI: 10.1103/PhysRevLett.102.212502

Abstract

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 1 standard deviation uncertainty, are M(130Te)=129.906 222 744(16) u and M(130Xe)=129.903 509 351(15) u. From the mass difference the double-beta-decay Q value of 130Te is determined to be Qbetabeta(130Te)=2527.518(13) keV. This is a factor of 150 more precise than the result of the AME2003 [G. Audi, Nucl. Phys. A729, 337 (2003)10.1016/j.nuclphysa.2003.11.003].