CODATA Recommended Values of the Fundamental Physical Constants: 2014

TL;DR

This paper presents the 2014 recommended values of fundamental physical constants, derived through a comprehensive least-squares adjustment of all available data up to the end of 2014, serving as a standard reference for scientific use.

Contribution

It provides an updated, self-consistent set of fundamental constants based on the latest experimental data and a rigorous adjustment process.

Findings

Updated values of fundamental constants

Enhanced accuracy and consistency of constants

Comprehensive data analysis and adjustment

Abstract

This report gives the 2014 self-consistent set of values of the constants and conversion factors of physics and chemistry recommended by the Committee on Data for Science and Technology (CODATA). These values are based on a least-squares adjustment that takes into account all data available up to 31 December 2014. The recommended values may also be found on the World Wide Web at physics.nist.gov/constants.