Pseudoscalar decays into two photons in chiral perturbation theory
Bijnens, Johan (Universität München. Sektion Physik)
Bramon Planas, Albert (Universitat Autònoma de Barcelona. Departament de Física)
Cornet, Fernando (Max-Planck-Institut für Physik und Astrophysik)

Date:	1988
Abstract:	We study the one-loop corrections in chiral perturbation theory to the γγ and γγ∗ decays of the pseudoscalar mesons. The latter are divergent, thus requiring the existence of dimension-six terms contributing to the anomalous Lagrangian. Some examples of such terms are given. We also discuss the experimental consequences of the next-to-leading terms.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; Versió publicada
Published in:	Physical review letters, Vol. 61, Issue 13 (September 1988) , p. 1453-1456, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.61.1453

4 p, 185.5 KB

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