Anomalies via dimensional regularization
Anomalous Ward identities arise when the Lagrangian in 21dimensional space-time is not invariant under the symmetry transformation in question with l arbitrary. (The anomalous symmetry-breaking terms have associated a factor 21--4 and disappear at the classical level in four dimensions.) In particular, the axial anomaly is connected with the chiral breaking due to the fermion kinetic energy and the canonical trace anomaly is a consequence of dilatation noninvariance of any interaction. (auth)
- Research Organization:
- Imperial Coll. of Science and Tech., London
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-019940
- OSTI ID:
- 4353874
- Journal Information:
- Nuovo Cimento, A, Journal Name: Nuovo Cimento, A Journal Issue: 2 Vol. 19; ISSN 0369-3546
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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