Backgound Gluon Effects on B -> X_s gamma gamma

Abstract

We consider non-perturbative QCD effects on the energy spectrum of either one of the photons in B -> X_s gamma gamma. These are due to the subprocesses in which a charm quark loop interacts with a self-consistently produced background static QCD field. The magnitude is estimated to be a few percents in B -> X_s gamma gamma, but can be quite substantial in B_s -> gamma gamma. An extension of the Euler-Heisenberg Lagrangian is given.

12 pages Plain TeX. 5 figures

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Cited by in corpus (1)

• The $B->X_{s}gammagamma$ decay in the standard model and the general two-Higgs-doublet model