KK-Masses in Dipole Deformed Field Theories
arXiv:hep-th/0602035 · doi:10.1088/1126-6708/2006/04/025
Abstract
We reconsider aspects of non-commutative dipole deformations of field theories. Among our findings there are hints to new phases with spontaneous breaking of translation invariance (stripe phases), similar to what happens in Moyal-deformed field theories. Furthermore, using zeta-function regularization, we calculate quantum corrections to KK-state masses. The corrections coming from non-planar diagrams show interesting but non-universal behaviour. Depending on the type of interaction the corrections can make the KK-states very heavy but also very light or even tachyonic. Finally we point out that the dipole deformation of QED is not renormalizable!
arXiv comment21 pages, 5 figures, uses axodraw.sty, JHEP3.cls; v2:revised version with minor changes
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