Weak coupling phase from decays of chargedBmesons to πKand ππ

1994/04/18 by Michael Gronau, Jonathan L. Rosner, David London · 8 citations
Physics and Astronomy · #B meson #Branching fraction #Charge (physics) #Coupling (piping) #Elementary particle #Meson #Neutrino Physics Research #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevlett.73.21

published as Phys.Rev.Lett.73:21-24,1994 · LaTeX, 8 pages, 2 figures (not included, available upon request), TECHNION-PH-94-7, EFI-94-14, UdeM-LPN-TH-94-192

arxiv created 1994/04/18 · openalex publication_date 1994/07/04 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The theory of CP violation based on phases in weak couplings in the Cabibbo-Kobayashi-Maskawa matrix requires the phase \ensuremathγ\ensuremath≡ArgV_ub^* (in a standard convention) to be nonzero. A measurement of \ensuremathγ is proposed based on charged B meson decay rates to \mathrm\ensuremathπ⁺K⁰, \mathrm\ensuremathπ⁰K⁺, \mathrm\ensuremathπ⁺\mathrm\ensuremathπ⁰, and the charge-conjugate states. The corresponding branching ratios are expected to be of the order of 10^\mathrm\ensuremath-5.

Citations

• Effects of Superheavy Quarks and Leptons in Low-Energy Weak Processes KL-> Formula, K+-> + Formula and K0 Formula0
• CP-Violation in the Renormalizable Theory of Weak Interaction

Cited by

• Obtaining CKM Phase Information from B Penguin Decays
• Measurement of Branching Fractions and Search forCP-Violating Charge Asymmetries in Charmless Two-BodyBDecays into Pions and Kaons
• Exploring B→ π π , π K B → π π , π K decays at the high-precision frontier
• Annihilation, Rescattering, andCPAsymmetries inBMeson Decays
• B→M1M2: Factorization, charming penguins, strong phases, and polarization
• Diagnostic for new physics in B→πK decays
• Anatomy of prominent B and K decays and signatures of CP-violating new physics in the electroweak penguin sector
• Determination of CKM phases through rigid polygons of flavor SU(3) amplitudes