2002/12/31 by Dao-Neng Gao · 5 citations
Physics and Astronomy · #Algorithm #Archaeology #Asymmetry #Black Holes and Theoretical Physics #Charge (physics) #Computer science #Database #History #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Standard Model (mathematical formulation) #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.67.074028
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 67(7) (American Physical Society) · LaTeX, 10 pages, minor changes, Published version
openalex publication_date 2003/04/24 · arxiv created 2003/04/25 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The CP-violating charge asymmetry in the decays K^\ifmmode±\else\textpm\fi\ensuremath→\ensuremathπ^\ifmmode±\else\textpm\fi\ensuremathγ\ensuremathγ, which is induced by the electromagnetic penguin operators, has been studied both in the standard model and in its extensions. Because of a large enhancement of the Wilson coefficients of the electromagnetic penguin operators in the supersymmetric extensions of the standard model, a significant upper bound on this charge asymmetry could be expected, and thus high-precision measurements of this interesting CP-violating quantity might explore new physics effects beyond the standard model.