Volume 476 - 42nd International Conference on High Energy Physics (ICHEP2024) - Quark and Lepton Flavour Physics
Rare and baryonic decays of charmed hadrons at Belle and Belle$~$II
Y.J. Kim*  on behalf of the Belle and Belle II collaborations
*: corresponding author
Full text: pdf
Pre-published on: January 08, 2025
Published on: April 29, 2025
Abstract
The Belle and Belle II experiments have collected a 1.5 ab$^{-1}$ sample of $e^+e^-$ collision data at centre-of-mass energies near the $\Upsilon(nS)$ resonances.
These samples contain a large number of $e^+e^-\to c\bar{c}$ events that produce charmed mesons and baryons.
We present searches for rare flavour-changing neutral current $c\to u \ell^+\ell^-$ processes in several decay modes.
Further, we study several decays of the $\Lambda_c$ and $\Xi_c$
to determine branching fractions, as well as $CP$ asymmetries in singly Cabibbo-suppressed decays.
DOI: https://doi.org/10.22323/1.476.0423
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