TRITIUM HE-3 MASS DIFFERENCE USING THE PENNING TRAP MASS-SPECTROSCOPY

被引：64

作者：

VANDYCK, RS

FARNHAM, DL

SCHWINBERG, PB

机构：

[1] Department of Physics, FM-15, University of Washington, Seattle

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.70.2888

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The atomic masses of both H-3 and He-3 have been measured with a Penning trap mass spectrometer that utilizes a frequency-shift detector to observe ion cyclotron resonances. Present resolution exceeds 1 part in 10(9) and is limited only by the stability of the magnetic field. The leading systematic shift (at less than or similar to 1 part in 10(10)) is due to the residual quadratic B field dependence. The atomic masses have been combined to yield DELTAMc2(H-3 - He-3) = 18 590.1(1.7) eV. The excellent agreement with recent results from beta spectrometers lends strong support for new limits on the neutrino's rest mass.

引用

页码：2888 / 2891

页数：4

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