Noncommutative Regularization In Gauge Theories
| dc.creator | Morita, Katsusada | |
| dc.date | 2004-04-05 | |
| dc.date.accessioned | 2026-07-07T04:16:48Z | |
| dc.date.available | 2026-07-07T04:16:48Z | |
| dc.description | Gauge invariance of noncommutative (NC) regularization which, on the basis of a Lorentz-invariant NC action regarded as a `regulated' action, neither introduces auxiliary fields nor extends dimensions to complex values, is proved by explicitly calculating photon self-energy in the one-loop approximation in scalar QED. Transversality of vacuum polarization in NC regularization is also briefly reviewed comparing with Pauli-Villars-Gupta and dimensional regularizations. NC regularization is applied to gauge-invariant calculation of one-loop gluon self-energy in U(N) gauge theory. It is shown that U(1) decouples from SU(N) in the one-loop gluon self-energy diagrams. That is, gauge-invariant result on the one-loop SU(N) gluon self-energy is obtained from consideration of Lorentz-invariant NC U(N) gauge theory. | |
| dc.description | 27 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/hep-th/0404038 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0404038 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/52506 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Noncommutative Regularization In Gauge Theories | |
| dc.type | text |