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1.
Three-loop QCD corrections to $B_{s} \rightarrow \mu^{+}\mu^{-}$ / Hermann, Thomas (Karlsruhe U., TTP) ; Misiak, Mikolaj (Warsaw U. ; CERN) ; Steinhauser, Matthias (Karlsruhe U., TTP)
The decay B_s -> mu^+ mu^- in the Standard Model is generated by the well-known W-box and Z-penguin diagrams that give rise to an effective quark-lepton operator Q_A at low energies. We compute QCD corrections of order alpha_s^2 to its Wilson coefficient C_A. [...]
arXiv:1311.1347; SFB-CPP-13-83; TTP13-034.- 2013 - 25 p. - Published in : JHEP 12 (2013) 097 Springer Open Access article: PDF; External link: Preprint
2.
B_{s,d} -> l+ l- in the Standard Model / Bobeth, Christoph (Munich, Tech. U.) ; Gorbahn, Martin (Liverpool U., Dept. Math. ; Munich, Tech. U.) ; Hermann, Thomas (KIT, Karlsruhe, TTP) ; Misiak, Mikolaj (Warsaw U. ; CERN) ; Stamou, Emmanuel (Munich, Tech. U. ; Weizmann Inst.) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP)
We combine our new results for the O(alpha_em) and O(alpha_s^2) corrections to B_{s,d} -> l^+ l^-, and present updated branching ratio predictions for these decays in the standard model. Inclusion of the new corrections removes major theoretical uncertainties of perturbative origin that have just begun to dominate over the parametric ones. [...]
arXiv:1311.0903; FLAVOUR(267104)-ERC-53; LTH-990; SFB-CPP-13-82; TTP13-033; FLAVOUR(267104)-ERC-53; LTH 990; SFB-CPP-13-82; TTP13-033.- 2014-03-11 - 4 p. - Published in : Phys. Rev. Lett. 112 (2014) 101801 Fulltext: PDF; External link: Preprint

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