The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
Constants
Topics:
Values
Energy
Equivalents
Searchable
Bibliography
Background

Constants
Bibliography

Constants,
Units &
Uncertainty
home page
[skip navigation]
Click symbol for equation
tau energy equivalent
 $m_{\rmsstau}c^2$
 Numerical value  1776.86 MeV
 Standard uncertainty     0.12 MeV
  Relative standard uncertainty  6.8 x 10-5
 Concise form  1776.86(12) MeV    
 
Click here for correlation coefficient of this constant with other constants
Source: 2018 CODATA     
recommended values
 
Definition of
uncertainty
 
     Correlation coefficient with
any other constant

 
Go to a new search