Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism

Details Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism

2002-03-18

arxiv.org/abs/hep-th/0203165v2

JHEP 0206:050,2002

Physics

High Energy Physics

High Energy Physics - Theory

24 pages, Latex. 4 figures. v2: Comments about analyticity added. References and acknowledgement also added. Version published

Scientific paper

10.1088/1126-6708/2002/06/050

We discuss nonplanar anomalies in noncommutative gauge theories. In particular we show that a nonplanar anomaly exists when the external noncommutative momentum is zero and that it leads to a non-conservation of the associated axial charge. In the case of nonplanar local anomalies, a cancellation of the anomaly can be achieved by a Green-Schwarz mechanism. In an example of D3 branes placed on orbifold singularity that leads to a chiral theory, the mechanism involves twisted RR fields which propagate with zero noncommutative momentum. Global anomalies are not cancelled and, in particular, the decay pi0 --> 2 gamma is allowed.

Affiliated with

Also associated with

No associations

Rating

Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-620232