PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Quark and Lepton Flavour Physics
Study of Branching fraction and CP Asymmetry of charm mesons at Belle
A. Sangal
Full text: pdf
Pre-published on: December 22, 2022
Published on: June 15, 2023
Abstract
$CP$ violation in charm meson decays is expected to be small within the Standard Model (SM) framework, and an observation of a large $CP$ asymmetry could indicate new physics. We report measurement of branching fractions and direct $CP$ asymmetries $A_{CP}$ in $D^{0} \to \pi^+\pi^-\eta,\, K^+K^-\eta,\, \phi \eta$ and $D^{0} \to K^{0}_{S}K^{0}_{S}\pi^{+}\pi^{-}$ decays. For the latter the T-odd asymmetry $a_{CP}^{T}$, sensitive to $CP$ violation in the decay, is also measured. This report also covers the search for $CP$ violation in $D \to K h \pi \pi^{0}$ $(h = \pi, K)$ decays. The results are based on the full data collected with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider.
DOI: https://doi.org/10.22323/1.414.0720
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.