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U-spin analysis of CP violation in B− decays into three charged light pseudoscalar mesons

2013/11/15 by Dong Xu, Guannan Li, Guan-Nan Li +1
Mathematics · Physics and Astronomy · #Amplitude #Dark Matter and Cosmic Phenomena #Geometry #Mathematics #Meson #Momentum (technical analysis) #Particle physics #Particle physics theoretical and experimental studies #Physics #Pi #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Spin (aerodynamics) #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.physletb.2013.12.040

RevTex 12 pages wit no figure

arxiv created 2013/11/15 · openalex publication_date 2013/12/17 · arxiv updated 2015/06/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We carry out a U-spin symmetry analysis for CP violation in B− decays into three light π−π−π+, π−K−K+, K−K−K+ and K−π−π+ mesons. We clarify some subtle points in constructing decay amplitudes with U=0 formed by the two negatively charged light mesons in the final states. U-spin conserving momentum independent and momentum dependent decay amplitudes, and U-spin violating decay amplitudes due to quark mass difference are constructed.

Citations