2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/214850Using the Kirschner-Lipatov equation as a basis, we study high energy elastic quark-quark amplitudes, which correspond to secondary Reggeons and pion exchange in the double-logarithmic approximation of perturbative QCD.6 pages, 2 figuresHigh Energy Physics - Phenomenologytext