Corpus ID: 237940289

Weighing the Axion with Muon Haloscopy

@inproceedings{BrayAli2021WeighingTA,
  title={Weighing the Axion with Muon Haloscopy},
  author={Noah Bray-Ali},
  year={2021}
}
Axions in the local dark matter halo of the galaxy collide with virtual photons dressing the electromagnetic vertex of the muon. The collisions shift the muon magnetic moment aμ = (gμ − 2)/2 ≈ α/(2π) in a way that scales with the four-dimensional volume of the muon beam and transforms like the axion under discrete space-time symmetries. The axion energy density ρA = (0.42 ± 0.06) eV from muon haloscopy saturates the local halo energy density ρH = (0.45 ± 0.17) eV. The axionphoton coupling gA… Expand

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References

SHOWING 1-8 OF 8 REFERENCES
On the anomalous magnetic moment of the muon
Abstract An exact calculation of the anomalous magnetic moment of the muon to second order in the fine structure constant is given. The uncertainties which limit the possible precision in testingExpand
CP violation
The salient features of CP-violating interactions in the standard elec-troweak theory and in a few of its popular extensions are discussed. Moreover a brief overview is given on the status andExpand
Principles of Physical Cosmology (Princeton
  • 1993
Phys
  • Rev. Lett. 60, 1797
  • 1988
JHEP 03
  • 033
  • 2019
3Λ 4 CP , suggesting that quark and gluon field configurations with non-trivial topology[31] must play a crucial role in any viable supernova scenario
  • For comparison, supernova progenitors are thought to reach density ρSN ≈ 1.7 × 10 −3 GeV 4 = 5
3Λ 4 CP , suggesting that quark and gluon field configurations with non-trivial topology[32] must play a crucial role in any viable supernova scenario
  • For comparison, supernova progenitors are thought to reach density ρSN ≈ 1.7 × 10 −3 GeV 4 = 5
We find a value for the axion-nucleon coupling g = (5.2±0.4)×10 −7 using muon haloscopy that excludes the standard "core collapse" scenario for supernova[29