Author/Authors :
Damir Becirevic ، نويسنده , , Benoît Blossier، نويسنده , , Antoine Gérardin، نويسنده , , Alain Le Yaouanc، نويسنده , , Francesco Sanfilippo، نويسنده ,
Abstract :
We discuss the possibilities of testing the recent claims of a relatively large image transition form factor through the non-leptonic image and image decay modes. To estimate the width of the latter we need the decay constant of the radially excited D-meson that we computed in lattice QCD with image dynamical flavors and after taking the continuum limit we found image. We also provide an update for the values of the D-meson decay constants obtained by using maximally twisted mass QCD.