Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara | Summary: We present GFlaT, a new algorithm that uses a graph-neural-network to determine the flavor of neutral $B$ mesons produced in $Upsilon(4S)$ decays. It improves previous algorithms by using the information from all charged final-state […]
Continue.. A new graph-neural-network flavor tagger for Belle II and measurement of $sin2φ_1$ in $B^0 to J/ψK^0_text{S}$ decays