2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42380Withdrawn by arXiv administration because the text and equations were plagiarized from chapter 11 of the BaBar Physics Book http://www.slac.stanford.edu/pubs/slacreports/slac-r-504.html See also hep-ph/0304045WITHDRAWN by arXiv administration due to plagiarism of chapter 11 of the BaBar Physics BookHigh Energy Physics - PhenomenologyB^0bar{B}^0 Mixing in the SMtext