2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211331We study the effects of gluon radiation in top pair production and their decays for e+e- annihilation at the ILC. To achieve this we apply the POWHEG method and interface our results to the Monte Carlo event generator Herwig++. We consider a center-of-mass energy of \sqrt{s}=500 GeV and compare decay correlations and bottom quark and anti-quark distributions before hadronization.25 pages, 16 figuresHigh Energy Physics - Phenomenologytext