${\tau }_{B_s}/{\tau }_{B_d}$ and $\Delta {\Gamma }_s$ confront new physics in $b\to s\tau \tau$

Marzia Bordone, Mario Fernández Navarro

Several new physics scenarios that address anomalies in $B$-physics predict an enhancement of $b\to s\tau \tau$ with respect to its Standard Model prediction. Such scenarios nec…