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Ward-Takahashi Identidy on the Ligth-Front

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arxiv hep-ph/9710226 v1 pith:DHHLCNLJ submitted 1997-10-02 hep-ph

Ward-Takahashi Identidy on the Ligth-Front

H. W. L. Naus (Institute for Theoretical Physics , University of Hannover) , J. P. B. C de Melo (Instituto de Fisica da Universidade de Sao Paulo) , T. Frederico (Departamento de Fisica , ITA , Centro Tecnico Aeroespacial) This is my paper
classification hep-ph
keywords bosonfrontlightward-takahashiaccountarbitrarycalculatedcareful
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The Ward-Takahashi identity, reflecting local gauge invariance, is perturbatively verified for a boson model in light front field theory. A careful integration over the light front energy, corresponding to exactly taking into account pair terms, which are the contributions of the zero longitudinal momentum mode, is crucial to obtain this result. Furthermore, the one-loop boson form factors are calculated for arbitrary off-shell momenta.

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Cited by 3 Pith papers

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