2004/09/24 by Motoi Endo, Satoshi Mishima, Masahiro Yamaguchi
Physics and Astronomy · #Anomaly (physics) #CP violation #Context (archaeology) #Gauge (firearms) #Mathematical physics #Minimal Supersymmetric Standard Model #Mixing (physics) #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Renormalization group #Standard Model (mathematical formulation) #Supergravity #Supersymmetry #Yukawa potential #hep-ph
paper · pdf · doi:10.1016/j.physletb.2004.12.049
published as Phys.Lett. B609 (2005) 95-101 · 11 pages, 1 figure
arxiv created 2004/09/24 · openalex publication_date 2004/12/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Recent results on the mixing-induced CP asymmetries of B → ϕK0 and B → η' KS measured at B-factories appear to indicate discrepancies from the Standard Model expectation. Explanation of this possible anomaly is given in the context of supersymmetric extension of the Standard Model. It is shown that the present data, if the average of two experiments is taken, implies additional CP violation appearing in the generation mixing of left-handed squarks rather than that of right-handed ones. This explanation is argued to disfavor many mediation mechanisms of supersymmetry breaking, including minimal supergravity, because renormalization group effects via Yukawa interaction are unlikely to generate the desired mass mixing.