Kalb-Ramond field interactions in a braneworld scenario

Details Kalb-Ramond field interactions in a braneworld scenario Kalb-Ramond field interactions in a braneworld scenario

2005-07-08

arxiv.org/abs/hep-th/0507085v2

Phys.Rev. D72 (2005) 066013

Physics

High Energy Physics

High Energy Physics - Theory

13 pages Latex, no figures, discussion and acknowledgements added

Scientific paper

10.1103/PhysRevD.72.066013

Electromagnetic and (linearized) gravitational interactions of the Kalb-Ramond (KR) field, derived from an underlying ten dimensional heterotic string in the zero slope limit, are studied in a five dimensional background Randall-Sundrum I spacetime with standard model fields confined to the visible brane having negative tension. The warp factor responsible for generating the gauge hierarchy in the Higgs sector is seen to appear inverted in the KR field couplings, when reduced to four dimensions. This leads to dramatically enhanced rotation, {\it far beyond observational bounds}, of the polarization plane of electromagnetic and gravitational waves, when scattered by a homogeneous KR background. Possible reasons for the conflict between theory and observation are discussed.

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