Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021

HFLAV Collaboration, Y. Amhis, Sw. Banerjee +39

This paper reports world averages of measurements of $b$-hadron, $c$-hadron, and $\tau$-lepton properties obtained by the Heavy Flavour Averaging Group using results available before…