出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We review here the status of the Unitarity Triangle in the Standard Model. Within the Standard
Model (SM), all flavour and CP violating quark weak interactions are governed by the CKM
matrix, which can be parameterized in terms of three angles and one phase, or, more conveniently,
in terms of the parameters l , A, ¯ r and ¯ h. This implies very strong correlations among flavour
and CP violating observables within the SM. The Unitarity Triangle (UT) is a very useful tool
to analyze these correlations. With the recent data on B decays, the UT fit has become strongly
overconstrained, thus it is now possible to test the CKM mechanism within the SM and to derive
constraints on New Physics (NP). In this talk, we will review the first aspect, while the second is
contained in ref. [1]. More details on the procedure and on the results can be found in ref. [2].
