Computing non-factorizable pQCD corrections to hadronic B⁰ - B⁰ mixing matrix element within sum rules technique for three point Green functions
Pivovarov, A. A.
Original · EN
In this talk I report on the results of a recent calculation of the αₛ corrections to a three-point correlation function at the three-loop level in QCD perturbation theory, which allows one to extract the matrix element of B⁰ - B⁰ mixing with next-to-leading order accuracy. The evaluation of mixing parameter at NLO allows for a consistent analysis of B⁰ - B⁰ mixing since the coefficient functions of the effective Hamiltonian for this process are known with the necessary accuracy.
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