✦ LIBER ✦
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
No coin nor oath required. For personal study only.
✦ 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.