$\vert \Delta {\boldsymbol \tau}_{{{\boldsymbol b}}}\vert /{\boldsymbol \tau}_{\mathrm {{{\boldsymbol b}},{{\overline{\boldsymbol b}}}}}$
INSPIRE search
${\mathit \tau}_{\mathrm {{{\mathit b}},{{\overline{\mathit b}}}}}$ and $\vert \Delta {\mathit \tau}_{{{\mathit b}}}\vert $ are the mean life average and difference between ${{\mathit b}}$ and ${{\overline{\mathit b}}}$ hadrons.