The photo-philic QCD axion
High Energy Physics - Phenomenology
2017-01-31 v2 Cosmology and Nongalactic Astrophysics
Abstract
We propose a framework in which the QCD axion has an exponentially large coupling to photons, relying on the "clockwork" mechanism. We discuss the impact of present and future axion experiments on the parameter space of the model. In addition to the axion, the model predicts a large number of pseudo-scalars which can be light and observable at the LHC. In the most favorable scenario, axion Dark Matter will give a signal in multiple axion detection experiments and the pseudo-scalars will be discovered at the LHC, allowing to determine most of the parameters of the model.
Keywords
Cite
@article{arxiv.1611.09855,
title = {The photo-philic QCD axion},
author = {Marco Farina and Duccio Pappadopulo and Fabrizio Rompineve and Andrea Tesi},
journal= {arXiv preprint arXiv:1611.09855},
year = {2017}
}
Comments
22 pages, 5 figures. Experimental signature from CASPEr-wind added