Wood Barry M
National Research Council of Canada, 1200 Montreal Road, Ottawa, Ontario, ON K1A 0R6 Canada
Philos Trans A Math Phys Eng Sci. 2014 Oct 13;372(2026). doi: 10.1098/rsta.2014.0029. Epub 2014 Sep 8.
The primary objective of the CODATA Task Group on Fundamental Constants is 'to periodically provide the scientific and technological communities with a self-consistent set of internationally recommended values of the basic constants and conversion factors of physics and chemistry based on all of the relevant data available at a given point in time'. I discuss why the availability of these recommended values is important and how it simplifies and improves science. I outline the process of determining the recommended values and introduce the principles that are used to deal with discrepant results. In particular, I discuss the specific challenges posed by the present situation of gravitational constant experimental results and how these principles were applied to the most recent 2010 recommended value. Finally, I speculate about what may be expected for the next recommended value of the gravitational constant scheduled for evaluation in 2014.
CODATA基本常数任务组的主要目标是“根据特定时间点可获取的所有相关数据，定期为科技界提供一套自洽的国际推荐的物理和化学基本常数及转换因子值”。我将讨论这些推荐值的可用性为何重要以及它如何简化和改进科学。我概述确定推荐值的过程，并介绍用于处理不一致结果的原则。特别是，我将讨论引力常数实验结果现状所带来的具体挑战，以及这些原则如何应用于2010年的最新推荐值。最后，我推测对于计划于2014年评估的引力常数的下一个推荐值可能会有什么预期。
