Calculation of the axion mass based on high-temperature lattice quantum chromodynamics

@article{Borsnyi2016CalculationOT,
  title={Calculation of the axion mass based on high-temperature lattice quantum chromodynamics},
  author={S. Bors{\'a}nyi and Z. Fodor and J. Guenther and K. Kampert and S. Katz and T. Kawanai and T. Kov{\'a}cs and S. Mages and A. P{\'a}sztor and F. Pittler and J. Redondo and A. Ringwald and K. Szab{\'o}},
  journal={Nature},
  year={2016},
  volume={539},
  pages={69-71}
}
Unlike the electroweak sector of the standard model of particle physics, quantum chromodynamics (QCD) is surprisingly symmetric under time reversal. As there is no obvious reason for QCD being so symmetric, this phenomenon poses a theoretical problem, often referred to as the strong CP problem. The most attractive solution for this requires the existence of a new particle, the axion—a promising dark-matter candidate. Here we determine the axion mass using lattice QCD, assuming that these… Expand
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