2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211071The littlest Higgs model with T-parity, which is called $LHT$ model, predicts the existence of the new particles, such as heavy top quark, heavy gauge bosons, and mirror fermions. We calculate the one-loop contributions of these new particles to the top quark chromomagnetic dipole moment $(CMDM)$ $ΔK$. We find that the contribution of the $LHT$ model is one order of magnitude smaller than the standard model prediction value.latex files, 12 pages, 3 figuresHigh Energy Physics - Phenomenologytext