Phys. Rev. Lett. 86, 4259–4262 (2001)Determination of the 76Ge Double Beta Decay Q ValueReceived 11 September 2000; published in the issue dated 7 May 2001 The Q value of the 76Ge double beta decay has been determined by measuring the masses of 76Ge and 76Se in a Penning trap using neon- and fluorinelike ions. The obtained masses are 75.921 402 758(96) u and 75.919 213 795(81) u, respectively. The systematic errors of these two determinations are nearly equal, and therefore, the remaining systematic uncertainty of the Q value is drastically reduced. A Q value of 2 039.006(50) keV was obtained improving the accuracy of the accepted value by a factor of 6. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.4259
DOI:
10.1103/PhysRevLett.86.4259
PACS:
21.10.Dr, 23.40.Bw, 27.50.+e, 32.10.Bi
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