2013/01/03 by P. Vanhoefer, Vanhoefer, P.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1301.0434
openalex publication_date 2013/01/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a summary of measurements sensitive to the CKM angles \φ1 and\n\φ2, performed by the Belle experiment using the final data sample of 772\n\× 106 B\B pairs at the \Υ(4S) resonance produced at the\nKEK asymmetric e+e- collider. We discuss CP asymmetries from the decays\nB0\→ c\c K0, D(*)+D(*)- which are sensitive to \φ1 and\nfrom B \→ \π+ \π-, a1\±\π\∓ being sensitive to \φ2.\nFurthermore the measurement of the branching fraction of B0\→\n\ρ0\ρ0 decays and fraction of longitudinal polarization in this decay is\npresented and used to constrain \φ2 with an isospin analysis in the B\→\n\ρ\ρ system.\n