Lattice QCD and Axion Cosmology
High Energy Physics - Lattice
2015-09-11 v1
Abstract
The Strong CP Problem can be resolved by introducing an additional global symmetry known as Peccei-Quinn symmetry. Once PQ symmetry is broken the associated particle, the QCD axion, is a plausible dark matter candidate. Calculating the cosmological energy density of the axion requires nonperturbative QCD input---the high-temperature topological susceptibility. I will show results from a pure-glue calculation and examine the implications for the axion mass and coupling.
Keywords
Cite
@article{arxiv.1509.02976,
title = {Lattice QCD and Axion Cosmology},
author = {Evan Berkowitz},
journal= {arXiv preprint arXiv:1509.02976},
year = {2015}
}
Comments
Proceedings for the 33rd International Symposium on Lattice Field Theory