New constraints on very light pseudoscalars
Cosmology and Nongalactic Astrophysics
2012-05-01 v1
Abstract
Nearly massless axion-like particles are of interest for astrophysical observations, and some constraints on their parameter space do exist in the literature. Here, we propose to put new constraints on these particles using polarisation and, in particular, the polarisation differences observed between different quasar classes.
Cite
@article{arxiv.1204.6614,
title = {New constraints on very light pseudoscalars},
author = {A. Payez and J. R. Cudell and D. Hutsemékers},
journal= {arXiv preprint arXiv:1204.6614},
year = {2012}
}
Comments
Contributed to the "7th Patras Workshop on Axions, WIMPs and WISPs", Mykonos June 26 - July 1 2011