Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields
High Energy Physics - Phenomenology
2010-08-04 v1 Cosmology and Nongalactic Astrophysics
Abstract
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.
Keywords
Cite
@article{arxiv.1008.0486,
title = {Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields},
author = {Shih-Hao Ho and W. F. Kao and Kazuharu Bamba and C. Q. Geng},
journal= {arXiv preprint arXiv:1008.0486},
year = {2010}
}
Comments
9 pages