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$σ_L/σ_T$ in the $ρ^0$ - meson diffractive electroproproduction

M. G. Ryskin·Yu. M. Shabelski
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Abstract

The background due to the direct diffractive dissociation of the photon into the $π^+π^-$-pair to the "elastic" diffractive $ρ^0$-meson production in electron-proton collisions is calculated. At large $Q^2$ the interference between resonant and non-resonant $π^+ π^-$ production changes the $σ^L/σ^T$ ratio with the mass of the $2π$ (i.e. $ρ^0$-meson) state.

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M. G. Ryskin, Yu. M. Shabelski. 1997-04-10. $σ_L/σ_T$ in the $ρ^0$ - meson diffractive electroproproduction. https://arxiv.org/abs/hep-ph/9704279

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