Deuteron-to-Proton Mass Ratio from the Cyclotron Frequency Ratio of H2+ to D+ with H2+ in a Resolved Vibrational State
Deuteron-to-Proton Mass Ratio from the Cyclotron Frequency Ratio of H2+ to D+ with H2+ in a Resolved Vibrational State
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DOI：
10.1103/physrevlett.124.013001
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发表时间：
2020-01-02
影响因子：
8.6
通讯作者：
Myers, Edmund G.
中科院分区：
文献类型：
--
作者：
Fink, David J.;Myers, Edmund G.
我们已经测量了H-2（+）与D+的回旋频率比，其精度足以解决由于振动能引起的H-2（+）质量增加。通过斯塔克猝灭增加振动衰减速率，提供了对激发振动能级的额外区分。从我们的结果中，我们得到了氘-质子质量比的值，m（d）/m（p）= 1.999 007 501 274（38），它的不确定性比目前的CODATA值小三倍。
We have measured cyclotron frequency ratios of H-2(+) to D+ with sufficient precision to resolve the mass increase of H-2(+) due to vibrational energy. Additional discrimination against excited vibrational levels was provided by increasing the rate of vibrational decay through Stark quenching. From our results we obtain a value for the deuteron-to-proton mass ratio, m(d)/m(p) = 1.999 007 501 274(38), which has an uncertainty three times smaller than the current CODATA value.