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High Energy Physics - Phenomenology

arXiv:2308.01333 (hep-ph)
[Submitted on 2 Aug 2023 (v1), last revised 9 Dec 2023 (this version, v2)]

Title:Boosted dark matter from a phantom fluid

Authors:James M. Cline, Matteo Puel, Takashi Toma
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Abstract:It is known that theories of phantom dark energy, considered as quantum fields, predict a continuous production of positive- plus negative-energy particles, from spontaneous decay of the vacuum. We show that this can be a new source of boosted dark matter or radiation, with consequences for direct detection. We set constraints on such models using data from the XENONnT experiment, and we show that recent excess events reported by the DAMIC experiment can be consistently described as coming from dark radiation, produced by vacuum decay, interacting with electrons.
Comments: 4 pages, 2 figures; v2: expanded conclusions, published version
Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Report number: KANAZAWA-23-07
Cite as: arXiv:2308.01333 [hep-ph]
  (or arXiv:2308.01333v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2308.01333
Related DOI: https://doi.org/10.1016/j.physletb.2023.138377

Submission history

From: James Cline [view email]
[v1] Wed, 2 Aug 2023 18:00:00 UTC (294 KB)
[v2] Sat, 9 Dec 2023 18:41:50 UTC (295 KB)
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