Accès ouvert
2023
preprint
OpenAlex
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed et autres
We report a measurement of the mixing-induced and direct $\textit{CP}$ violation parameters $S_{\text{CP}}$ and $A_{\text{CP}}$ from $B^0 \to J/ψK^0_S$ decays reconstructed by the Belle II experiment at the SuperKEKB asymmetric-energy electron-positron collider. The data, collected at the center-of-mass energy of the $Υ(4S)$ …
Accès ouvert
2023
preprint
OpenAlex
I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara et autres
We propose a new algorithm for the identification of the production flavor of neutral $D$ mesons in the Belle II experiment. The algorithm exploits the correlation between the flavor of a reconstructed neutral $D$ meson (signal $D$ meson) and the electric charges …
Accès ouvert
2023
preprint
OpenAlex
I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara et autres
We report measurements of the branching fractions and direct $\it{CP}$ asymmetries of the decays $B^0 \to K^+ \pi^-$, $B^+ \to K^+ \pi^0$, $B^+ \to K^0 \pi^+$, and $B^0 \to K^0 \pi^0$, and use these for testing the standard model through an isospin-based …