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How to preserve symmetries with cut-off regularized integrals?

✍ Scribed by T. Varin; D. Davesne; M. Oertel; M. Urban


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
184 KB
Volume
791
Category
Article
ISSN
0375-9474

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✦ Synopsis


We present a prescription to define quadratically and logarithmically divergent parts of several integrals employing a cut-off in agreement with some symmetry requirements. As examples we consider one-loop Ward identities for QED and a phenomenological chiral model.


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