TY - JOUR AU - Gómez Nicola, Ángel AU - Torres Andrés, R. PY - 2014 DO - 10.1103/PhysRevD.89.116009 SN - 1550-7998 UR - https://hdl.handle.net/20.500.14352/33993 T2 - Physical review D AB - We investigate the charged-neutral difference in the pion self-energy at finite temperature T. Within chiral perturbation theory (ChPT) we extend a previous analysis performed in the chiral and soft pion limits. Our analysis with physical pion masses... LA - eng PB - American Physical Society KW - Chiral perturbation-theory KW - Axial-vector mesons KW - Mass difference KW - Virtual photons KW - strange quark KW - Light quark KW - Field-theory KW - Damping rate KW - Sum-rules KW - One-loop. TI - Electromagnetic effects in the pion dispersion relation at finite temperature TY - journal article VL - 89 ER -