1997/12/12 by L. T. Handoko, Handoko, L. T.
Physics and Astronomy · #Atomic and Subatomic Physics Research #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/9712356
6 pages, talk given at APCTP Workshop P4 (Oct. 30-Nov. 2, 1997) Seoul, Korea
arxiv created 1997/12/12 · openalex publication_date 1997/12/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The possibility to test the unitarity triangle of CKM matrix is examined by using the semileptonic rare B decays, B → Xq ł+ ł- with q = d, s and ł's are leptons. The discussion is emphasized on the CP asymmetry in the framework of standard and beyond the standard models. For the beyond standard model, a minimal extension of the standard model containing an additional isosinglet charge (-1/3) charge quark, which leads to a deviation from CKM unitarity, is considered. As the results, in the standard model the CP asymmetry is visible only for B → Xd ł+ ł-, while in the latter model it is sizeable even for B → Xs ł+ ł-.