SU(3) relations and theCPasymmetry inB→KSKSKS

2005/05/23 by Guy Engelhard, Yosef Nir, Guy Raz
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.72.075013

published as Phys.Rev. D72 (2005) 075013 · 21 pages, 1 figure, 1 table, revtex4

arxiv created 2005/05/23 · openalex publication_date 2005/10/24 · arxiv updated 2009/12/01 · openalex created_date 2016/08/23 · openalex updated_date 2026/07/28

Abstract

The CP asymmetry in the B\ensuremath→K_SK_SK_S decay is being measured by the two B factories. A large deviation of the CP asymmetry S_K_SK_SK_S from \ensuremath-S_\ensuremathψK_S and/or of C_K_SK_SK_S from zero would imply new physics in b\ensuremath→s transitions. We try to put upper bounds on the Standard Model size of these deviations, using SU(3) flavor relations and experimental data on the branching ratios of various decay modes that proceed via b\ensuremath→d transitions. We point out several subtleties that distinguish the case of three-body final states from two body ones. We present several simple relations that can become useful once all relevant modes are measured accurately enough.

Citations

• CP violation and the CKM matrix: assessing the impact of the asymmetric B factories
• QCD factorization in B→πK, ππ decays and extraction of Wolfenstein parameters
• Interpreting the time-dependent CP asymmetry in B0→π0KS
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)