1999/09/20 by Seungwon Baek, S. Baek, Baek, S. +3
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9909433
Talk given (by P. Ko) at International Symposium on Supersymmetry, Supergravity and Superstring, Seoul, Korea, 23-27 Jun 1999. (15 pages)
arxiv created 1999/09/20 · openalex publication_date 1999/09/20 · arxiv updated 2009/11/30 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28
In the minimal supersymmetric standard model (MSSM), the μ-parameter and the trilinear coupling At may be generically complex and can affect various observables at B factories. Working in the effective SUSY models and imposing the edm constraints from Chang-Keung-Pilaftsis (CKP) mechanism, we find that (i) there is no new large phase shift in the B0 - B0 mixing from the At and μ phases, (ii) CP violating dilepton asymmetry is smaller than 0.1%, (iii) the direct CP violation in B→ Xs γ can be as large as ∼ ± 16 %, (iv) the \rm Br (B→ Xs l+ l-) can be enhanced by upto ∼ 85 % compared to the standard model (SM) prediction, and its correlation with \rm Br (B → Xs γ) is distinctly different from the minimal supergravity scenario. Also, we find 1 ≤ εK / εKSM ≤ 1.4, and εK cannot be saturated by the At and μ phases alone : namely, |εK\rm SUSY| ≤ O(10-5) if the phases of μ and At are the sole origin of CP violation.