Radiative Transitions in Charmonium

Details Radiative Transitions in Charmonium Radiative Transitions in Charmonium

2005-09-30

arxiv.org/abs/hep-lat/0510003v1

PoS LAT2005 (2005) 210

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 7 figures, poster presented at Lattice 2005 (Heavy Quark Physics)

Scientific paper

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 $Q^2 = 0$, 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.

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