Generalized heavy-to-light form factors in light-cone sum rules

  title={Generalized heavy-to-light form factors in light-cone sum rules},
  author={Ulf-G. Mei{\ss}ner and W. Wang},
  journal={Physics Letters B},
  • Ulf-G. Meißner, W. Wang
  • Published 2014
  • Physics
  • Physics Letters B
  • Abstract We study the form factors for a heavy meson into the S-wave K π / π π system with an invariant mass below 1 GeV. The mesonic final state interactions are described in terms of the scalar form factors, which are obtained from unitarized chiral perturbation theory. Employing generalized light-cone distribution amplitudes, we compute the heavy-to-light transition using light-cone sum rules. Our approach simultaneously respects constraints from analyticity and unitarity, and also takes… CONTINUE READING

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