Φ_2 MEASUREMENT USING B → ρπ DECAYS AT BELLE

摘要

We present measurements of time-dependent asymmetries in decays of neutral B mesons to the final states B~0 → ρ~±π~(-+). Measurements are based on a 140 f b~(-1) data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e~+e~- collider.