Masses of 130Te and 130Xe and Double-β-Decay Q Value of 130Te

被引：119

作者：

Redshaw, Matthew ^{[1
]}

Mount, Brianna J. ^{[1
]}

Myers, Edmund G. ^{[1
]}

Avignone, Frank T., III ^{[2
]}

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[2] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 21期

基金：

美国国家科学基金会;

关键词：

PENNING TRAP; NEUTRINO MASS; GE-76; SPECTROSCOPY; IONS; PPB;

D O I：

10.1103/PhysRevLett.102.212502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The atomic masses of Te-130 and Xe-130 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(Te-130)=129.906 222 744(16) u and M(Xe-130)=129.903 509 351(15) u. From the mass difference the double-beta-decay Q value of Te-130 is determined to be Q(beta beta)(Te-130)=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)].

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