2008/08/22 by Mikołaj Misiak, Mikolaj Misiak, Misiak, Mikolaj
Physics and Astronomy · #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.0808.3134
6 pages, 4 figures, contribution to the Proceedings of the IXth International Conference on Heavy Quarks and Leptons (HQL 2008), Melbourne, Australia, June 5-9, 2008. Note added and refs updated in v2
arxiv created 2009/03/05 · arxiv updated 2009/12/01
The current status of B -> Xs gamma decay rate calculations is summarized. Missing ingredients at the NNLO level are listed. The global normalization factor and non-perturbative effects are discussed. Arguments are presented that results for the cutoff-enhanced perturbative corrections have been misused in Ref. [15] by applying them in the region Egamma ∈ [1.0, 1.6] GeV, which means that the corresponding numerical effect on BR(B -> Xs gamma, Egamma > 1.6 GeV) is unreliable.