Constants Topics: Values Energy Equivalents Searchable Bibliography Background Constants Bibliography Constants, Units & Uncertainty home page

tau mass energy equivalent  Numerical value  2.846 84 x 10-10 J  Standard uncertainty  0.000 19 x 10-10 J   Relative standard uncertainty  6.8 x 10-5  Concise form  2.846 84(19) x 10-10 J       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