2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/231123We present the status of the CKM matrix parameters in the framework of the Standard Model. We perform a model independent analysis to set constraints on additional effective parameters accounting for possible New Physics effects and to evaluate the present allowed space for these effects both from $B_d$ and $B_s$ mesons.proceedings for the Moriond 2009 EW sessionHigh Energy Physics - Phenomenologytext