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IPM
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“School of Physics”

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Paper   IPM / P / 6774
School of Physics
  Title:   Anomaly and Nonplanar Diagrams in Noncommutative Gauge Theories
  Author(s): 
1.  N. Sadooghi
2.  F. Ardalan
  Status:   Published
  Journal: Int. J. Mod. Phys. A
  No.:  18
  Vol.:  17
  Year:  2002
  Pages:   123-144
  Supported by:  IPM
  Abstract:
Anomalies arising from nonplanar triangle diagrams of noncommutative gauge theory are studied. Local chiral gauge anomalies for both noncommutative U(1) and U(N) gauge theories with adjoint matter fields are shown to vanish. For noncommutative QED with fundamental matters, due to UV/IR mixing a finite anomaly emerges from the nonplanar contributions. It involves a generalized ∗-product of gauge fields.

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