Bs→ μ+μ− in the SM and B̄→ Xsγ in the 2HDM at NNLO in QCD
نویسنده
چکیده
In this contribution the QCD next-to-next-to-leading order (NNLO) matching coefficients to the branching ratio B s → µ + µ − in the Standard Model (SM) and to ¯ B → X s γ in the Two Higgs Doublet Model (2HDM) are discussed. In both cases a three-loop matching between the full and effective theory was performed, which leads to a significant reduction of the scale uncertainty.
منابع مشابه
Bs→ μ+μ− and B̄→ Xsγ to NNLO
In this contribution, the recent calculation of next-to-next-to-leading order QCD and next-to-leading order electroweak corrections to the decay B s → µ + µ − is reviewed, and a detailed discussion of the uncertainty of the theory prediction is provided. Furthermore, we discuss the status of the next-to-next-to-leading order QCD corrections to ¯ B → X s γ.
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تاریخ انتشار 2014