Infrared Divergence and Twist-3 Wave Functions in QCD Factorization for B→PP Decays

  • 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.
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DU Dong-Sheng. Infrared Divergence and Twist-3 Wave Functions in QCD Factorization for B→PP Decays[J]. Chinese Physics C, 2002, 26(S1): 11-15.
DU Dong-Sheng. Infrared Divergence and Twist-3 Wave Functions in QCD Factorization for B→PP Decays[J]. Chinese Physics C, 2002, 26(S1): 11-15. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Infrared Divergence and Twist-3 Wave Functions in QCD Factorization for B→PP Decays

    Corresponding author: DU Dong-Sheng,
  • Institute of High Energy Physics of CAS, Beijing 100039, China

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.

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