Infrared Divergence and Twist-3 Wave Functions in QCD Factorization for B→PP Decays
- Received Date: 1900-01-01
- Accepted Date: 1900-01-01
- Available Online: 2002-06-24
Abstract: The problem of chirally enhanced corrections for B decays into two light pseudos- calars in QCD factorization scheme is discussed. We find that the infrared divergences of the vertex corrections cancel only if the twist-3 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.