Effective Field Theories on Non-Commutative Space-Time

Details Effective Field Theories on Non-Commutative Space-Time Effective Field Theories on Non-Commutative Space-Time

2003-05-02

arxiv.org/abs/hep-ph/0305027v2

Phys.Rev. D68 (2003) 025016

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 1 figure

Scientific paper

10.1103/PhysRevD.68.025016

We consider Yang-Mills theories formulated on a non-commutative space-time described by a space-time dependent anti-symmetric field $\theta^{\mu\nu}(x)$. Using Seiberg-Witten map techniques we derive the leading order operators for the effective field theories that take into account the effects of such a background field. These effective theories are valid for a weakly non-commutative space-time. It is remarkable to note that already simple models for $\theta^{\mu\nu}(x)$ can help to loosen the bounds on space-time non-commutativity coming from low energy physics. Non-commutative geometry formulated in our framework is a potential candidate for new physics beyond the standard model.

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