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Charm meson resonances in D semileptonic decays
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Charm meson resonances in D semileptonic decays
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Motivated by recent experimental results we reconsider semileptonic D to P l nu_l and D to V l nu_l decays within a model which combines heavy quark symmetry and properties of the chiral Lagrangian. Using limits of soft collinear effective theory and heavy quark effective theory we parametrize the semileptonic form factors. We include excited charm meson states in our Lagrangians and determine their impact on the charm meson semileptonic form factors. Then we calculate branching ratios for all D to P l nu_l and D to V l nu_l decays.
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