How to preserve symmetries with cut-off regularized integrals?

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We present a prescription to calculate the quadratic and logarithmic divergent parts of several integrals employing a cutoff in a coherent way, i.e. in total agreement with symmetry requirements. As examples we consider one-loop Ward identities for QED and a phenomenological chiral model.
11 pages, 3 graphs

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/188186

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/0611220
 http://arxiv.org/abs/hep-ph/0611220
 Nucl.Phys.A791:422-433,2007
 doi:10.1016/j.nuclphysa.2007.05.003

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