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Chiral lagrangians for massive spin-1 fields

AuthorsEcker, Gerhard; Gasser, Jurg; Leutwyler, H.; Pich, Antonio ; Rafael, Eduardo de
Issue Date15-Jun-1989
CitationPhysics Letters B 223(3-4): 425-432 (1989)
AbstractThere are different ways to include massive spin-1 particles in the effective low-energy lagrangian. We analyse these ambiguities in the context of chiral perturbation theory to order p4. We show that, provided consistency with QCD asymptotic behaviour is incorporated, the structure of the effective couplings induced by vector and axial-vector exchange is model independent.
Description8 páginas, 1 tabla.
Publisher version (URL)http://dx.doi.org/10.1016/0370-2693(89)91627-4
Appears in Collections:(IFIC) Artículos
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