Chiral anomalies and Poincare invariance
| dc.creator | Thomassen, Jan B. | |
| dc.date | 1999-12-11 | |
| dc.date | 2000-04-10 | |
| dc.date.accessioned | 2026-07-07T04:27:25Z | |
| dc.date.available | 2026-07-07T04:27:25Z | |
| dc.description | I study variations of the fermionic determinant for a nonabelian Dirac fermion with external vector and axial vector sources. I consider different regularizations, leading to different chiral anomalies when the variations are chiral transformations. For these different regularizations, I then consider variations associated with Poincare transformations. I find that both Lorentz and translational invariance are anomalously violated in general, but that they are respected when the variations of the determinant are regularized to give a Wess-Zumino consistent anomaly (the Bardeen anomaly). If the variations are regularized to give a covariant anomaly, then Poincare invariance is not respected. Following Manohar in an investigation of Poincare anomalies in a chiral gauge theory, this gives an alternative way to understand the need for a consistent regularization of the variations of the fermionic determinant. | |
| dc.description | 8 pages, revised version, two references added | |
| dc.identifier | https://arxiv.org/abs/hep-th/9912095 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9912095 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/56413 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Chiral anomalies and Poincare invariance | |
| dc.type | text |