Sourav Patra

04 December 2023
The 17th International Workshop on Tau Lepton Physics

Abstract: We present searches for the charged lepton-flavor-violating decays in $\Upsilon(1S) \to \ell^{\pm}\ell^{\prime\mp}$ and $\Upsilon(1S) \to \gamma \ell^{\pm}\ell^{\prime\mp}$ decays, where $\ell,\ell^\prime=e, \mu, \tau$ using $25 {\rm fb}^{-1}$ of $\Upsilon(2S)$ data. Using 772 million $B\bar{B}$ sample, we search for CLFV in $B^+\to\tau^{\pm}\ell^{\mp}$ decays, where $\ell=e,\mu$. Also, we search for CLFV in $B^0_s\to\ell^{\pm}\tau^{\mp}$ decays, where $\ell=e,\mu$, using $121 {\rm fb}^{-1}$ of $\Upsilon(5S)$ sample.