2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/214779A parton shower method for the photonic radiative correction is applied to the single W-boson production processes. The energy scale for the evolution of the parton shower is determined so that the correct soft-photon emission is reproduced. Photon spectra radiated from the partons are compared with those from the exact matrix elements, and show a good agreement. Possible errors due to a inappropriate energy-scale selection or due to the ambiguity of energy scale determination are also discussed, particularly for the measurements on triple gauge-couplings.17 pages, 6 Postscript figuresHigh Energy Physics - Phenomenologytext