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Measurement of the gamma gamma* --> eta_c transition form factor
gamma gamma momentum transfer
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2010/3/15
We study the reaction e+e- --> e+e- eta_c, eta_c --> K_S K+- pi-+ and obtain eta_c mass and width values 2982.2+-0.4+-1.6 MeV/c^2 and 31.7+-1.2+-0.8 MeV, respectively. We find Gamma(eta_c --> gamma ga...
Extensions of the Extrema Bounds for the Pomeron Intercept to Meson-Proton, Gamma-Proton and Gamma-Gamma Scattering
the Extrema Bounds the Pomeron Intercept Meson-Proton Gamma-Proton Gamma-Gamma Scattering
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2010/10/19
Making use of the extrema bounds for the soft pomeron intercept, recently determined by fits to pp and ¹pp data (from both accelerator and cosmic-ray experiments), we investigate the total cross ...