Unitarity triangle from CP invariant quantities

2006/04/30 by K. Kleinknecht, B. Renk, Burkhard Renk · 1 citation
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2006.07.015

published as Phys.Lett.B639:612-615,2006 · 8 pages, 3 figures

arxiv created 2006/05/30 · openalex publication_date 2006/07/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03

Abstract

We construct the CKM unitarity triangle from CP invariant quantities, using the coupling constant of weak decays with flavor change from b to u, and the particle–antiparticle mixing probabilities in the Bs0 and Bd0 systems. Also included are new measurements of the coupling Vus in Kaon decays. Of the two solutions, one agrees perfectly with the triangle constructed from CP violating processes in the K and B meson systems. The common solution yields a triangle with an area of J/2=(1.51±0.09)×10−5 and a CP violating phase δ=63.1°±4.0°.

Citations

• CP violation and the CKM matrix: assessing the impact of the asymmetric B factories
• Commutator of the Quark Mass Matrices in the Standard Electroweak Model and a Measure of MaximalCPNonconservation
• CP-Violation in the Renormalizable Theory of Weak Interaction
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Bsmixing and new physics in hadronicb→sq¯qtransitions