Accès ouvert
2026
article
OpenAlex
M. Abumusabh, I. Adachi, L. Aggarwal, H. Ahmed et autres
We measure the time- and phase-space-integrated C P asymmetry A C P in D 0 → π + π − π 0 decays reconstructed in e + e − → c c ¯ events collected by the Belle II experiment from 2019 …
Accès ouvert
2024
preprint
OpenAlex
I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara et autres
We measure the branching fraction of the decay $B^0 \to J/ψω$ using data collected with the Belle II detector at the SuperKEKB collider. The data contain $(387 \pm 6) \times 10^6$ $B\overline{B}$ meson pairs produced in energy-asymmetric $e^+e^-$ collisions at the $Υ(4S)$ …
Accès ouvert
2021
preprint
OpenAlex
Belle II Collaboration, F. Abudinén, I. Adachi, R. Adak et autres
We present a reconstruction in early data of the semileptonic decay $B^+ \to π^0 \ell^+ ν_\ell$, and first results of a reconstruction of the decays $B^+ \to ρ^0 \ell^+ ν_\ell$ and $B^0 \to ρ^- \ell^+ ν_\ell$ in a sample corresponding to 62.8 …
Accès ouvert
2021
preprint
OpenAlex
Belle II collaboration, F. Abudinén, I. Adachi, R. Adak et autres
We report on the first Belle II measurement of the branching fraction ($\mathcal{B}$) and longitudinal polarization fraction ($f_L$) of $B^+\to ρ^+ρ^0$ decays. We reconstruct $B^+\to ρ^+(\to π^+π^0(\to γγ))ρ^0(\to π^+π^-)$ decays in a sample of SuperKEKB electron-positron collisions collected by the Belle II …