CODATA recommended values of the fundamental physical constants: 2018*,Reviews of Modern Physics

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CODATA recommended values of the fundamental physical constants: 2018*
Reviews of Modern Physics ( IF 45.9 ) Pub Date : 2021-06-30 , DOI: 10.1103/revmodphys.93.025010
Eite Tiesinga _{1,

2} , Peter J Mohr _{1,

2} , David B Newell _{1,

2} , Barry N Taylor _{1,

2}

Affiliation

We report the 2018 self-consistent values of constants and conversion factors of physics and chemistry recommended by the Committee on Data of the International Science Council (CODATA). The recommended values can also be found at physics.nist.gov/constants. The values are based on a least-squares adjustment that takes into account all theoretical and experimental data available through 31 December 2018. A discussion of the major improvements as well as inconsistencies within the data is given. The former include a decrease in the uncertainty of the dimensionless fine-structure constant and a nearly two orders of magnitude improvement of particle masses expressed in units of kg due to the transition to the revised International System of Units (SI) with an exact value for the Planck constant. Further, because the elementary charge, Boltzmann constant, and Avogadro constant also have exact values in the revised SI, many other constants are either exact or have significantly reduced uncertainties. Inconsistencies remain for the gravitational constant and the muon magnetic-moment anomaly. The proton charge radius puzzle has been partially resolved by improved measurements of hydrogen energy levels.

中文翻译：

CODATA 基本物理常数推荐值：2018*

我们报告了国际科学理事会数据委员会（CODATA）推荐的2018年物理和化学常数和转换因子自洽值。还可以在物理.nist.gov/constants 上找到建议值。这些值基于最小二乘调整，考虑了截至 2018 年 12 月 31 日可用的所有理论和实验数据。对主要改进以及数据中的不一致之处进行了讨论。前者包括无量纲精细结构常数的不确定性降低，以及由于过渡到具有精确值的修订版国际单位制 (SI)，以千克为单位的颗粒质量提高了近两个数量级。普朗克常数。此外，由于基本电荷、玻尔兹曼常数和阿伏加德罗常数在修订后的 SI 中也具有精确值，因此许多其他常数要么是精确的，要么显着降低了不确定性。引力常数和μ子磁矩异常仍然存在不一致。质子电荷半径之谜已通过改进氢能级测量得到部分解决。

更新日期：2021-07-01

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