Meson Loops and the gDD Coupling

The D∗Dπ form factor is evaluated at low and moderate Q2 in a hadronic loop model, for off-shell D mesons.The results contain arbitrary constants, which are fixed so as to match a previous QCD sum rule calculationvalid at higher Q2. The form factor obtained in this way is used to...

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Publicat a:Brazilian Journal of Physics
Autors principals: F.O. Durães, F. S. Navarra, M. Nielsen, M.R. Robilotta
Format: Artigo
Idioma:Inglês
Publicat: Sociedade Brasileira de Física 2006
Matèries:
Física, Astronomía y Matemáticas
QCD sum rule
Chiral symmetry
Heavy form factor
Hadronic loop model
Effective Lagrangian
Accés en línia:https://www.redalyc.org/articulo.oa?id=46436621
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