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INFRARED DIVERGENCE AND TWIST-3 WAVE FUNCTIONS IN QCD FACTORIZATION FOR B → PP DECAYS
https://doi.org/10.1142/9789812777379_0036Cited by:0 (Source: Crossref)
Abstract:
The problem of chirally enhanced corrections for B decays into two light pseu-doscalars in QCD factorization scheme is discussed. We find that the infrared divergences of the vertex corrections cancel only if the twist-3 meson wave functions are symmetric. In that case chirally enhanced corrections can be included consistently. The divergences appeared in the hard spectator scattering are also discussed briefly.
