出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The form factors for the radiative transitions between charmonium mesons are investigated. We
employ an anisotropic lattice using a Wilson gauge action, and domain-wall fermion action. We
extrapolate the form factors to Q2 =0, corresponding to a real photon, using quark-model-inspired
functions. Finally, comparison is made with photocouplings extracted from the measured radiative
widths, where known. Our preliminary results find photocouplings commensurate with these
experimentally extracted values.
