Precision mass spectroscopy of the antiproton and proton using simultaneously trapped particles
Precision mass spectroscopy of the antiproton and proton using simultaneously trapped particles
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DOI：
10.1103/physrevlett.82.3198
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发表时间：
1999-04-19
影响因子：
8.6
通讯作者：
Jhe, W
中科院分区：
文献类型：
--
作者：
Gabrielse, G;Khabbaz, A;Jhe, W
最后一个系列的三个测量改善了反质子（（p）在酒吧）和质子（p）的比较，几乎是10（6）倍，比早期的外来原子测量，是最精确的CPT测试重子通过类似的大因素。测量同时捕获的（p）在棒和H-离子上的回旋频率，确定（p）在棒和p上的q/m比为-0.99999999991 +/-0.0000000009，比我们以前的测量精度高10倍以上。这种9 × 10（-11）的比较首次将同时捕获的粒子用于亚ppb光谱。[S0031-9007（99）08869-9].
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].