Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields

Details Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields

2010-08-03

arxiv.org/abs/1008.0486v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages

Scientific paper

We study the CPT-even dimension-six Chern-Simons-like term by including
dynamical Kalb-Ramond and scalar fields to examine the cosmological
birefringence. We show that the combined effect of neutrino current and
Kalb-Ramond field could induce a sizable rotation polarization angle in the
cosmic microwave background radiation polarization.

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