DETERMINATION OF THE ELECTRONS ATOMIC MASS AND THE PROTON/ELECTRON MASS-RATIO VIA PENNING TRAP MASS-SPECTROSCOPY

被引：169

作者：

FARNHAM, DL

VANDYCK, RS

SCHWINBERG, PB

机构：

[1] Department of Physics, University of Washington, Box 351560, Seattle

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.75.3598

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Accuracy of the electron's atomic mass has been improved tenfold by comparing cyclotron frequencies of electrons and single C6+ ions alternately confined to the same uniform magnetic field in a Penning trap. Cyclotron resonances are observed via frequency shifts in the particle's continuously monitored harmonic motion parallel to the field. Field instability and relativity cause, respectively, the leading statistical and systematic errors. Combining the electron's atomic mass M(e) = 0.000 548 579 911 1(12) u with the proton's yields the mass ratio m(p)/(e)m = 1836.152 666 5(40).

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页码：3598 / 3601

页数：4

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