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arXiv · 1509.02976

Lattice QCD and Axion Cosmology

Evan Berkowitz
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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.

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Evan Berkowitz. 2015-09-09. Lattice QCD and Axion Cosmology. https://arxiv.org/abs/1509.02976

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