Searches for lepton flavor violation in meson decays at Belle

Sumitted to PubDB: 2023-12-26

Category: Talk, Visibility: Public

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Authors	Sourav Patra
Date	Dec. 4, 2023
Belle II Number	BELLE2-TALK-CONF-2023-197
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.
Conference	The 17th International Workshop on Tau Lepton Physics