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Path Integral Measure for Gauge Invariant Fermion Theories

Feb, 1979
10 pages
Published in:
  • Phys.Rev.Lett. 42 (1979) 1195-1198
DOI:
Report number:
  • INS-328
View in:
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Abstract: (APS)
It is shown that the path-integral measure for gauge-invariant fermion theories is not invariant under the γ5 transformation and the Jacobian gives rise to an extra phase factor corresponding to the Adler-Bell-Jackiw anomaly. The derivation of "anomalous" Ward-Takahashi identities by means of the variational derivative can thus be made consistent in the path-integral formalism.
  • GAUGE FIELD THEORY: PATH INTEGRAL
  • GAUGE FIELD THEORY: ANOMALY
  • QUANTUM ELECTRODYNAMICS: WARD-TAKAHASHI IDENTITY
  • MODEL: FERMION
  • FUNCTIONAL ANALYSIS
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