Gold-plated mode of CP-violation in decays of Bc meson from QCD sum rules

Abstract

A model-independent method based on the triangle ideology is implemented to extract the CKM-matrix angle γ in the decays of the doubly heavy long-lived meson Bc. We analyse a colour structure of diagrams and conditions to reconstruct two reference triangles by tagging the flavour and CP eigenstates of mesons in the fixed exclusive channels. The characteristic branching ratios are evaluated in the framework of QCD sum rules.