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

@article{Meiner2014GeneralizedHF, 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}, year={2014}, volume={730}, pages={336-341} }

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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