1994/04/18 by Oscar F. Hernandez, O HERNANDEZ, David London +2 · 55 citations
Physics and Astronomy · #Amplitude #Asymmetry #Diagram #Measure (data warehouse) #Mixing (physics) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Symmetry (geometry) #Tree (set theory) #Weak measurement #hep-ph
paper · pdf · doi:10.1016/0370-2693(94)90174-0
published in Physics Letters B 333(3-4), 500-506 (Elsevier BV) · 2 figures available from the authors upon request, 12 pages,UdeM-LPN-TH-94-195
arxiv created 1994/04/18 · openalex publication_date 1994/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Flavor SU(3) symmetry implies certain relations among B-decay amplitudes to ππ, πK and K K final states, when annihilation-like diagrams are neglected. Using three triangle relations, we show how to measure the weak CKM phases α and γ using time-independent rate measurements only. In addition, one obtains all the strong final-state phases and the magnitudes of individual terms describing tree (spectator), color-suppressed and penguin diagrams. Many independent measurements of these quantities can be made with this method, which helps to eliminate possible discrete ambiguities and to estimate the size of SU(3)-breaking effects.