PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Quark and Lepton Flavor Physics
Measurements of radiative $B$ meson decays at Belle
H. Kim* On behalf of the BELLE Collaboration
*corresponding author
Full text: pdf
Pre-published on: February 06, 2017
Published on: April 19, 2017
Abstract
The radiative $B$ meson decays $\overline{B} \to X_s \gamma$, and $X_d \gamma$ provide good probes to new physics as new unknown particles can enter in the loop and change the branching fractions and the associated $CP$ asymmetries. We present the analyses of radiative $B$ decays for branching fractions and the direct $CP$ asymmetries. In particular, we report the inclusive $CP$ asymmetry of the $b\to s\gamma/d\gamma$ decays, recently obtained with the semi-inclusive and the lepton tagging method by the \textit{Belle} collaboration. HQE parameters in shape-function scheme is obtained using the measured spectrum as well. We also present the results of the exclusive $\mathcal{B}(B^{0}\to \phi\gamma)$, $\mathcal{B}(B^{0}_{s}\to \phi\gamma)$, and $\mathcal{B}(B^{0}_{s}\to \gamma\gamma)$.
DOI: https://doi.org/10.22323/1.282.0586
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