2005/06/30 by Svjetlana Fajfer, Jernej F. Kamenik, Jernej Kamenik · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.72.034029
published as Phys.Rev.D72:034029,2005 · 12 pages, 4 figures; minor clarifications, references added
arxiv created 2005/08/25 · openalex publication_date 2005/08/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Using limits of large energy effective theory and heavy quark effective theory, we propose a simple parametrization of the heavy to light H\ensuremath→V semileptonic form factors. Then we reconsider D\ensuremath→V\ensuremathℓ\ensuremathν_\ensuremathℓ 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\ensuremath→V\ensuremathℓ\ensuremathν_\ensuremathℓ decays.