High-Precision Measurement of the Proton's Atomic Mass
High-Precision Measurement of the Proton's Atomic Mass
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DOI：
10.1103/physrevlett.119.033001
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发表时间：
2017-07-18
影响因子：
8.6
通讯作者：
Sturm, S.
中科院分区：
文献类型：
--
作者：
Heiss, F.;Koehler-Langes, F.;Sturm, S.
我们报道了用特制的彭宁陷阱系统精确测量单个质子的原子质量。在精度为万亿分之32的情况下，我们的结果不仅比目前的CODATA文献值提高了3倍，而且在大约3个标准差的水平上与之不一致。
We report on the precise measurement of the atomic mass of a single proton with a purpose-built Penning-trap system. With a precision of 32 parts per trillion our result not only improves on the current CODATA literature value by a factor of 3, but also disagrees with it at a level of about 3 standard deviations.