Next-to-Leading Order QCD Corrections to ΔF =2 effective Hamiltonians

الأصل · EN

The most general QCD next-to-leading anomalous-dimension matrix of all possible four-fermion, dimension-six ΔF=2 operators is computed. The results of this calculation can be used in many phenomenological applications, among which the most important are those related to theoretical predictions of K⁰-K⁰ and B⁰-B⁰ mixing in several extension of the Standard Model (Supersymmetry, left-right symmetric, multi-Higgs models, etc.), to estimates of the B⁰ₛ-- B⁰ₛ width difference, ΔΓBₛ, and to the calculation of the O(1/mb³) corrections for inclusive b-hadron decay rates.