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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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http://hal.in2p3.fr/in2p3-00127205
Contributor : Dominique Girod <>
Submitted on : Monday, January 29, 2007 - 2:14:42 PM
Last modification on : Saturday, September 19, 2020 - 4:50:28 AM

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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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