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Effective field theories on noncommutative space-time

par Calmet, Xavier ;Wohlgenannt, Michael
Référence Physical Review D - Particles, Fields, Gravitation and Cosmology, 68, 2, 025016
Publication Publié, 2003

Article révisé par les pairs

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Résumé :

We consider Yang-Mills theories formulated on a noncommutative space-time described by a space-time dependent antisymmetric field θ μv(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 noncommutative space-time. It is remarkable to note that already simple models for θμv(x) can help to loosen the bounds on space-time noncommutativity coming from low energy physics. Noncommutative geometry formulated in our framework is a potential candidate for new physics beyond the standard model. © 2003 The American Physical Society.