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High Energy Physics - Phenomenology

arXiv:2308.08477 (hep-ph)
[Submitted on 16 Aug 2023 (v1), last revised 13 Feb 2024 (this version, v3)]

Title:Detecting Quadratically Coupled Ultra-light Dark Matter with Stimulated Annihilation

Authors:Yuanlin Gong, Xin Liu, Lei Wu, Qiaoli Yang, Bin Zhu
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Abstract:Ultra-light Dark Matter (ULDM) is one of the most promising DM candidates. Due to the Bose enhancement, we find the annihilation rate of the ULDM in the presence of background photon radiation can be greatly enhanced and produce a distinctive reflected electromagnetic wave with an angular frequency equal to the ULDM mass. We propose to utilize such stimulated annihilation to probe the ULDM with the electromagnetic quadratic coupling by emitting a beam of radio into space. With a power of 50 MW emitter, we forecast the sensitivity of quadratic coupling in different local halo models for low-frequency radio telescopes, such as LOFAR, UTR-2 and ngLOBO.
Comments: 7+3pages, 2 figures, discussions and references are added, and two equivalent formalisms are given. version accepted by PRD
Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Cite as: arXiv:2308.08477 [hep-ph]
  (or arXiv:2308.08477v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2308.08477

Submission history

From: Lei Wu [view email]
[v1] Wed, 16 Aug 2023 16:36:28 UTC (120 KB)
[v2] Sat, 26 Aug 2023 13:55:59 UTC (123 KB)
[v3] Tue, 13 Feb 2024 03:43:03 UTC (131 KB)
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