Precision mass spectroscopy of the antiproton and proton using simultaneously trapped particles

被引：375

作者：

Gabrielse, G ^{[1
]}

Khabbaz, A

Hall, DS

Heimann, C

Kalinowsky, H

Jhe, W

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Univ Bonn, Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[3] Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.82.3198

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This last of a series of three measurements improves the comparison of antiproton ((p) over bar) and proton (p) by almost a factor of 10(6) over earlier exotic atom measurements, and is the most precise CPT test with baryons by a similar large factor. Measuring the cyclotron frequencies of a simultaneously trapped (p) over bar and H- ion establishes that the ratio of q/m for (p) over bar and p is -0.99999999991 +/- 0.00000000009, more than 10 times the accuracy over our previous measurement. This 9 X 10(-11) comparison makes the first use of simultaneously trapped particles for sub-ppb spectroscopy. [S0031-9007(99)08869-9].

引用

页码：3198 / 3201

页数：4

共 23 条

[1]

Bluhm R, 1998, PHYS REV D, V57, P3932, DOI 10.1103/PhysRevD.57.3932

[2] GEONIUM THEORY - PHYSICS OF A SINGLE ELECTRON OR ION IN A PENNING TRAP [J].