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Report number 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
Title B_{s,d} -> l+ l- in the Standard Model
Author(s) 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)
Publication 2014-03-11
Imprint 04 Nov 2013
Number of pages 4
Note Comments: 4 pages, 1 figure
4 pages, 1 figure; v3: matches the published version in Phys. Rev. Lett. 112, 101801 (2014); title and ordering of references modified; results unchanged
In: Phys. Rev. Lett. 112 (2014) 101801
DOI 10.1103/PhysRevLett.112.101801
Subject category Particle Physics - Phenomenology
Abstract 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. For the recently observed muonic decay of the B_s meson, our calculation gives BR(B_s -> mu^+ mu^-) = (3.65 +_ 0.23) * 10^(-9).
Copyright/License http://arxiv.org/licenses/nonexclusive-distrib/1.0/



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 Notice créée le 2013-11-06, modifiée le 2024-10-12


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