Investigation of the color-dipole structure in diffractive t-slopes of charmonia photo- and electroproductions

Arata Hayashigaki, Katsuhiko Suzuki

The diffractive t-slope, B_V, of elastic charmonia (V=J/psi, psi') photo- and leptoproductions off a nucleon is studied at low |t| (< 1 GeV^2) in the leading logarithmic approximat…