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hep-ph2002
Two photon width of heavy pseudoscalar mesons
Nicola Fabiano, Giulia Pancheri
We discuss the partial width of the pseudoscalar charmonium state eta_c and bottomonium state eta_b into two photons. Predictions from potential models are examined and compared wi…
hep-ph2002
Soft Gluons and the Energy Dependence of Total Cross-Sections
R. M. Godbole, A. Grau, G. Pancheri +1
We discuss the high energy behaviour of total cross-sections for protons and photons, in a QCD based framework with particular emphasis on the role played by soft gluons