Alvarez Estrada, R FDobado González, AntonioGómez Nicola, Ángel2023-06-202023-06-201994-04-070370-269310.1016/0370-2693(94)90204-6https://hdl.handle.net/20.500.14352/58745We analyze the finite temperature (T) extension of the Wess-Zumino-Witten functional, discussed in a previous work, to one loop in chiral perturbation theory. As a phenomenological application, we calculate finite temperature corrections to the amplitude of pi0 decay into two photons. This calculation is performed in three limits : i) T/M(pi) << 1, ii) the chiral limit at finite T and iii) T/M(pi) >> 1 (M(pi) being the pion mass). The T-corrections tend to vanish in the chiral limit, where only the kaon contribution remains (although it is exponentially suppressed).engjournal articlehttp://dx.doi.org/10.1016/0370-2693(94)90204-6http://www.sciencedirect.com/http://arxiv.org/abs/hep-ph/9401282open access53Chiral-SymmetryCurrent-AlgebraFísica (Física)22 Física