2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46700We calculate cross-sections for neutral current deep inelastic scattering at HERA with photon tagging. Both the exact lowest-order cross-section and a leading logarithmic approximation of next-order corrections are calculated. The latter amounts to less than 20% in a large kinematical range. The integrations are performed numerically but without relying on Monte Carlo methods.25 pages, LaTex, 9 figures; uses bezier.sty and epsfig.styHigh Energy Physics - Phenomenologytext