2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/192524Temperature effects on the electromagnetic couplings of pions in hot hadronic matter are studied with an effective chiral Lagrangian. We show that the Ward-Takahashi identity is satisfied at non-zero temperature in the soft pion limit. The in-medium electromagnetic form factor of the pion is obtained in the time-like region and shown to be reduced in magnitude, especially near the vector-meson resonance region. Finally, we discuss the consequences of this medium effect on dilepton production from hot hadronic matter.29 pages (LaTex) + 11 figuresNuclear TheoryHigh Energy Physics - Phenomenologytext