CKM matrix fits including constraints on New Physics

Understand

I review the status of global fits to the CKM matrix within the framework of the Standard Model and also allowing for New Physics contributions in B-Bbar mixing.

• The driving force is coming from the large data sets collected by the B-factory experiments BABAR and Belle.
• Additional important inputs to the B_s sector are provided by the Tevatron experiments CDF and D0.
• In particular, when constraining New Physics in B-Bbar mixing in a model-independent analysis a nice interplay between the B-factories and the Tevatron experiments is observed.