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One-loop calculations on the wess-zumino-witten anomalous functional at finite-temperature

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Alvarez Estrada, R F and Dobado González, Antonio and Gómez Nicola, Ángel (1994) One-loop calculations on the wess-zumino-witten anomalous functional at finite-temperature. Physics Letters B, 324 (03/04/). pp. 345-350. ISSN 0370-2693

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Official URL: http://dx.doi.org/10.1016/0370-2693(94)90204-6




Abstract

We 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).


Item Type:Article
Uncontrolled Keywords:Chiral-Symmetry, Current-Algebra
Subjects:Sciences > Physics
ID Code:22825
Deposited On:17 Sep 2013 16:21
Last Modified:09 Oct 2015 15:09

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