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Paper   IPM / Physic / 7808
School of Physics
  Title:   On the Anomalies and Schwinger Terms in Noncommutative Gauge Theories
1.  F. Ardalan
2.  H. Arfaei
3.  N. Sadooghi
  Status:   Published
  Journal: Int. J. Mod. Phys. A
  No.:  19&20
  Vol.:  21
  Year:  2006
  Pages:   4161-4183
  Supported by:  IPM
Invariant (nonplanar) anomaly of noncommutative QED is reexamined. It is found that just as in ordinary gauge theory UV regularization is needed to discover anomalies, in noncommutative case, in addition, an IR regularization is also required to exhibit existence of invariant anomaly. Thus resolving the controversy in the value of invariant anomaly, an expression for the unintergrated anomaly is found. Schwinger terms of the current algebra of the theory are derived.

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