2023
DOI: 10.48550/arxiv.2301.00209
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Blazar boosted Dark Matter -- direct detection constraints on $σ_{eχ}$ : Role of energy dependent cross sections

Abstract: Elastic collisions with relativistic electrons from the blazar's jet can accelerate dark matter (DM) particles in the DM spike surrounding the supermassive black hole at its center. This can allow one to set stringent limits on the DM-electron scattering cross section (σeχ) for DM masses less than 100 MeV. We consider DM particles boosted by energetic electrons in the jets of the blazars TXS 0506+056 and BL Lacertae. Both vector and scalar mediators for the scattering of electron and electrophilic fermionic DM… Show more

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Cited by 2 publications
(4 citation statements)
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“…Here we have considered both possibilities, as did by ref. [97] in the context of JCAP06(2023)004 dark matter boosted by electrons in the blazar jet. Probably α = 3/2 is more realistic due to the complex stellar environment in AGNs [125], but we do not feel qualified to make a definitive statement, and we defer to workers who specialize on this issue to confirm such a statement, which would significantly reduce the astrophysical uncertainty of the constraints.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Here we have considered both possibilities, as did by ref. [97] in the context of JCAP06(2023)004 dark matter boosted by electrons in the blazar jet. Probably α = 3/2 is more realistic due to the complex stellar environment in AGNs [125], but we do not feel qualified to make a definitive statement, and we defer to workers who specialize on this issue to confirm such a statement, which would significantly reduce the astrophysical uncertainty of the constraints.…”
Section: Discussionmentioning
confidence: 99%
“…We do not include the recent bounds on σ eχ inferred by ref. [97] because they are model-dependent. Our new limits on σ 0 , shown in the right panel for the case of σ νχ ∝ E ν , are generally weaker than the constraints implied by the 290 TeV neutrino event from TXS 0506+056, except for the most optimistic BM1 spike model.…”
Section: Constraints On Neutrino-dark Matter Scatteringmentioning
confidence: 99%
“…Here we have considered both possibilities, as did Ref. [82] in the context of dark matter boosted by electrons in the blazar jet. Probably α = 3/2 is more realistic, but we do not feel qualified to make a definitive statement, and we defer to workers who specialize on this issue to confirm such a statement, which would significantly reduce the astrophysical uncertainty of the constraints.…”
Section: Discussionmentioning
confidence: 99%
“…We do not include the recent bounds on σ eχ inferred by Ref. [82] because they are model-dependent. Our new limits on σ 0 , shown in the right panel for the case of σ νχ ∝ E ν , are generally weaker than the constraints implied by the 290 TeV neutrino event from TXS 0506+056, except for the most optimistic BM1 spike model.…”
Section: Constraints On Neutrino-dark Matter Scatteringmentioning
confidence: 99%