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How to preserve symmetries with cut-off regularized integrals?

Abstract : 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.
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Contributor : Dominique Girod <>
Submitted on : Monday, January 29, 2007 - 2:14:42 PM
Last modification on : Wednesday, April 7, 2021 - 11:34:02 PM

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T. Varin, D. Davesne, M. Oertel, Michael Urban. How to preserve symmetries with cut-off regularized integrals?. Nuclear Physics A, Elsevier, 2007, 791, pp.422-433. ⟨10.1016/j.nuclphysa.2007.05.003⟩. ⟨in2p3-00127205⟩



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