Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
By M. Misiak, H. Asatrian, K. Bieri, M. Czakon, A. Czarnecki, T. Ewerth, A. Ferroglia, Paolo Gambino, M. Gorbahn, C. Greub and 7 more. 2006
278 citations recorded by the source corpus.
Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find BR(B -> X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 1.6 GeV in the B-meson rest frame. The four types of uncertainties: non-perturbative (5%), parametric (3%), higher-order (3%) and m_c-interpolation ambiguity (3%) have been added in quadrature to obtain the total error.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/4da4f0463b43a5a7114a742774e09d29a7beb7a2
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
- David M. Straub
- W. Altmannshofer
- P. Paradisi
- M. Hobson
- Roberto Trotta
- L. Roszkowski
- V. Rychkov
- Farhan Feroz
Citations in the corpus
- Higgs boson from an extended symmetry (2007, background): “A similar effect will also be present for the b → sγ process, which agrees with the SM at 10% level of error [14].”
- The impact of priors and observables on parameter inferences in the constrained MSSM (2008, background): “[40, 41] was obtained for slightly different values of Mt and αs(MZ) .”
- Model-independent constraints on new physics in b → s transitions (2011, background): “reported in [31], rescaled to the SM prediction of [29], and assume the uncertainty in the SM prediction as relative error on the theory prediction.”