Figure 16From: Exclusive ρ0 production in deep inelastic scattering at HERAA compilation of the value of δ from a fit of the form Wδfor exclusive vector-meson electroproduction, as a function of Q2 + M2. It includes also the DVCS results. The inner error bars indicate the statistical uncertainty, the outer error bars represent the statistical and systematic uncertainty added in quadrature.Back to article page