Two Photon Couplings of Hybrid Mesons

Details Two Photon Couplings of Hybrid Mesons Two Photon Couplings of Hybrid Mesons

1996-07-31

arxiv.org/abs/hep-ph/9607475v2

Nucl.Phys. B495 (1997) 268-282

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTeX, 2 postscript figures, uses epsf. Rewritten for clarification

Scientific paper

10.1016/S0550-3213(97)00191-0

A new formalism is developed for the two photon production of hybrid mesons via intermediate hadronic decays. In an adiabatic and non-relativistic context with spin 1 pair creation we obtain the first absolute estimates of unmixed hybrid production strengths to be small (0.03 - 3 eV) in relation to experimental meson widths (0.1 - 5 keV). Within this context, two photon experiments at Babar, Cleo II, LEP2 and LHC therefore strongly discriminate between hybrid and conventional meson wave function components, filtering out conventional meson components. Decay widths of unmixed hybrids vanish. Conventional meson two photon widths are roughly in agreement with experiment.

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