Charm meson resonances in D semileptonic decays

Details Charm meson resonances in D semileptonic decays Charm meson resonances in D semileptonic decays

2005-09-16

arxiv.org/abs/hep-ph/0509166v1

AIPConf.Proc.806:203-209,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures, Prepared for QCD@Work 2005 International Workshop on Quantum Chromodynamics: Theory and Experiment, Conver

Scientific paper

10.1063/1.2163764

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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