PoS - Proceedings of Science
Volume 291 - 9th International Workshop on the CKM Unitarity Triangle (CKM2016) - WG3 Parallel
Rare radiative and semileptonic $b\to s ll$ $B$ decays at Belle
S. Wehle
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Pre-published on: June 05, 2017
Published on: June 13, 2017
We present a measurement of angular observables and a test of lepton flavor universality in the $B\to K^\ast\ell\ell$ decay, where $\ell$ is either $e$ or $\mu$.
For the first time, the angular analysis in the $B\to K^\ast\ell\ell$ decay is performed separately for the electron and muon channels.
The analysis is performed using a data sample corresponding to an integrated luminosity of $711~\mathrm{fb}^{-1}$ containing $772\times 10^{6}$ $B\bar B$ pairs, collected at the $\Upsilon(4S)$ resonance with the Belle detector at the asymmetric-energy $e^+e^-$ collider KEKB.
DOI: https://doi.org/10.22323/1.291.0073
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