PoS - Proceedings of Science
Volume 462 - 16th International Conference on Heavy Quarks and Leptons (HQL2023) - Posters
Study of 𝐡+ β†’ 𝐷(βˆ—)+π‘ πœ‹0 mode at Belle
M.Β Kumar* and V.Β Bhardwaj
Full text: pdf
Pre-published on: April 01, 2024
Published on: β€”
We present here the sensitivity study of the rare decay modes $B^{+} \to D_{s}^{+}\pi^{0}$ and $B^{+} \to D_{s}^{(\ast)+}\pi^{0}$, at Belle using a simulated sample. The {\sc BaBar} collaboration has measured the branching fraction $\mathcal{B}(B^{+} \to D_{s}^{+}\pi^{0}) = (1.5^{+0.5}_{-0.4} \pm 0.1 \pm 0.2) \times 10^{-5}$ with a data sample of $232 \times 10^{6}$ $B\bar{B}$ events collected at the $\Upsilon(4S)$ resonance. The combined data from the Belle and Belle II experiments is five times larger than the previously used. This will allow us to provide an improved measurement of the branching fraction for these decay modes, for a better bound on the ratio of the amplitudes $r_{D\pi} = \dfrac{A(B^0 \to D^+\pi^-)}{A(B^0 \to D^-\pi^+)}$ (assuming SU(3) symmetry), which is important input to extract weak phases in the time-dependent measurement of $B^0 \to D^\pm\pi^\mp$ decays. \\
In addition, we aim to search for the $B^{+} \to D_{s}^{(\ast)+}\pi^{0}$ mode, whose upper limit is provided by the ARGUS collaboration based on $209 \times 10^{3}$ $B\bar{B}$ events.
DOI: https://doi.org/10.22323/1.462.0093
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.