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  Directional axion detection

Knirck, S., Millar, A. J., O'Hare, C. A. J., Redondo, J., & Steffen, F. D. (2018). Directional axion detection. Journal of Cosmology and Astroparticle Physics, (1811), 051. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-56.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0003-F91F-3 Version Permalink: https://hdl.handle.net/21.11116/0000-0003-F920-0
Genre: Journal Article

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 Creators:
Knirck, Stefan1, Author
Millar, Alexander J.1, Author
O'Hare, Ciaran A. J.1, Author
Redondo, Javier1, Author
Steffen, Frank D.1, Author
Affiliations:
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650              

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Free keywords: Astroparticle Physics
 Abstract: We develop a formalism to describe extensions of existing axion haloscope designs to those that possess directional sensitivity to incoming dark matter axion velocities. The effects are measurable if experiments are designed to have dimensions that approach the typical coherence length for the local axion field. With directional sensitivity, axion detection experiments would have a greatly enhanced potential to probe the local dark matter velocity distribution. We develop our formalism generally, but apply it to specific experimental designs, namely resonant cavities and dielectric disk haloscopes. We demonstrate that these experiments are capable of measuring the daily modulation of the dark matter signal and using it to reconstruct the three-dimensional velocity distribution. This allows one to measure the Solar peculiar velocity, probe the anisotropy of the dark matter velocity ellipsoid and identify cold substructures such as the recently discovered streams near to Earth. Directional experiments can also identify features over much shorter timescales, potentially facilitating the mapping of debris from axion miniclusters.

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 Dates: 2018
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 747207
URI: https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-56
URI: http://arXiv.org/abs/arxiv:1806.05927
URI: https://doi.org/10.1088/1475-7516/2018/11/051
URI: http://inspirehep.net/record/1678097
Other: MPP-2018-56
 Degree: -

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Title: Journal of Cosmology and Astroparticle Physics
  Alternative Title : JCAP
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: (1811) Sequence Number: - Start / End Page: 051 Identifier: -