Cosmic-Neutrino-Boosted Dark Matter ($ν$BDM)

Jho, Yongsoo; Park, Jong Chul; Park, Seong Chan; Tseng, Po-Yan

doi:10.48550/arxiv.2101.11262

Cited by 17 publications

(31 citation statements)

References 35 publications

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“…[48] which is analogous to the considered case and of Ref. [47] in which stellar neutrinos instead of DSNB neutrinos, boost the DM. Note that our results are consistent with Ref.…”

Section: Xenon1tsupporting

confidence: 53%

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Exclusion limits on Dark Matter-Neutrino Scattering Cross-section

Ghosh,

Guha,

Sachdeva

2021

Preprint

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We derive new constraints on combination of dark matter -electron cross-section (σχe) and dark matter -neutrino cross-section (σχν ) utilising the gain in kinetic energy of the dark matter (DM) particles due to scattering with the cosmic ray electrons and the diffuse supernova neutrino background (DSNB). Since the flux of the DSNB neutrinos is comparable to the CR electron flux in the energy range ∼ 1 MeV − 50 MeV, scattering with the DSNB neutrinos can also boost low-mass DM significantly in addition to the boost due to interaction with the cosmic ray electrons. We use the XENON1T as well as the Super-Kamiokande data to derive bounds on σχe and σχν . While our bounds for σχe are comparable with those in the literature, we show that the Super-Kamiokande experiment provides the strongest constraint on σχν for DM masses below a few MeV.

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“…[48] which is analogous to the considered case and of Ref. [47] in which stellar neutrinos instead of DSNB neutrinos, boost the DM. Note that our results are consistent with Ref.…”

Section: Xenon1tsupporting

confidence: 53%

“…In this scenario, the DM is boosted to higher velocity due to scattering with various cosmic ray components (see Fig. 1 for a schematic diagram) This idea has been explored using CR protons [37][38][39], helium nuclei [37], cosmic electrons [38][39][40][41][42][43], and neutrinos from various astrophysical sources [44][45][46][47][48].…”

Section: Introductionmentioning

confidence: 99%

Exclusion limits on Dark Matter-Neutrino Scattering Cross-section

Ghosh,

Guha,

Sachdeva

2021

Preprint

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“…[91][92][93][94]) or neutrino (e.g. [95,96]) scattering or stellar acceleration (e.g. [97]), annihilation (e.g.…”

Section: Resultsmentioning

confidence: 99%

Pushing the frontier of WIMPy inelastic dark matter: journey to the end of the periodic table

Song,

Nagorny,

Vincent

2021

Preprint

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We explore the reach of low-background experiments made of small quantities of heavy nuclear isotopes in probing the parameter space of inelastic dark matter that is kinematically inaccessible to classic direct detection experiments. Through inelastic scattering with target nuclei, dark matter can yield a signal either via nuclear recoil or nuclear excitation. We present new results based on this approach, using data from low-energy gamma quanta searches in low-background experiments with Hf and Os metal samples, and measurements with CaWO4 and PbWO4 crystals as scintillating bolometers. We place novel bounds on WIMPy inelastic dark matter up to mass splittings of about 640 keV, and provide forecasts for the reach of future experiments.

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“…For boosted CNB via neutrino self-interaction, sun-like stars provide main source of cosmic neutrino. One needs to sum up the entire stellar contributions in the Milk Way [24]…”

Section: Boosted Cnb Spectrummentioning

confidence: 99%

A new Direct Detection Strategy for the Cosmic Neutrino Background

Wei¹,

Feng²,

Jin³

et al. 2021

Preprint

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The direct detection of cosmic neutrino background (CNB) has been a longstanding challenge in particle physics, due to its low number density and tiny neutrino masses. In this work, we consider the spectrum of the CNB boosted by cosmic rays via the neutrino self-interaction, and calculate the event rate of the boosted CNB-plasmon scattering in term of the dielectric response, which accounts for in-medium screening effect of a condensed matter target. This can be taken as the new direct detection strategy for the CNB in complementary to the traditional one, which captures the CNB on a β-unstable nucleus. Our result shows that one can either see the event of the CNB for the exposure of per kg•year, or puts a strong constraint on the neutrino self-interaction. We further explore the background induced by the sub-MeV dark matter and the boosted super-light dark matter.

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Cosmic-Neutrino-Boosted Dark Matter ($ν$BDM)

Cited by 17 publications

References 35 publications

Exclusion limits on Dark Matter-Neutrino Scattering Cross-section

Exclusion limits on Dark Matter-Neutrino Scattering Cross-section

Pushing the frontier of WIMPy inelastic dark matter: journey to the end of the periodic table

A new Direct Detection Strategy for the Cosmic Neutrino Background

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