Charm meson resonances and D to V semileptonic form factors

Details Charm meson resonances and D to V semileptonic form factors Charm meson resonances and D to V semileptonic form factors

2005-06-06

arxiv.org/abs/hep-ph/0506051v3

Phys.Rev.D72:034029,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures; minor clarifications, references added

Scientific paper

10.1103/PhysRevD.72.034029

Using limits of large energy effective theory and heavy quark effective theory we propose a simple parametrization of the heavy to light H to V semileptonic form factors. Then we reconsider D to V l nu_l decays within a model which combines heavy meson and chiral symmetry. In our Lagrangians we include contributions coming from excited charm meson states, some of them recently observed. Within this framework we determine all parameters describing the shapes of the form factors and calculate branching ratios and helicity ratios for all D to V l nu_l decays.

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