2002/08/09 by M. Ciuchini, L. Silvestrini · 48 citations
Physics and Astronomy · #Algorithm #Asymmetry #Computer science #Factorization #Neutrino Physics Research #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph
paper · pdf · doi:10.1103/physrevlett.89.231802
published in Physical Review Letters 89(23), 231802 (American Physical Society) · 3 pages
arxiv created 2002/08/09 · openalex publication_date 2002/11/18 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In the presence of large new physics contributions to loop-induced b-->s transitions, sizable direct CP violation in B-->phiK decays is expected on general grounds. We compute explicitly CP-violating effects using QCD factorization and find that, even in the restricted case in which new physics has the same penguin structure as the standard model, the rate asymmetry can be of the order of 1. We briefly discuss a more general scenario and comment on the inclusion of power-suppressed corrections to factorization.