Detection prospects for the Cosmic Neutrino Background using laser interferometers

Domcke, Valerie; Spinrath, Martin

doi:10.1088/1475-7516/2017/06/055

Cited by 38 publications

(51 citation statements)

References 92 publications

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“…These numbers are not so pessimistic in the context of other attempts to detect coherent effects of the cosmic neutrino background, see e.g. [111,113]. On a positive note, there is ample space for exploration of DM signals.…”

Section: Cosmic Neutrinosmentioning

confidence: 96%

Exploring the ultra-light to sub-MeV dark matter window with atomic clocks and co-magnetometers

Alonso

Blas

Wolf

2019

J. High Energ. Phys.

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Particle dark matter could have a mass anywhere from that of ultralight candidates, m χ ∼ 10 −21 eV, to scales well above the GeV. Conventional laboratory searches are sensitive to a range of masses close to the weak scale, while new techniques are required to explore candidates outside this realm. In particular lighter candidates are difficult to detect due to their small momentum. Here we study two experimental set-ups which do not require transfer of momentum to detect dark matter: atomic clocks and co-magnetometers. These experiments probe dark matter that couples to the spin of matter via the very precise measurement of the energy difference between atomic states of different angular momenta. This coupling is possible (even natural) in most dark matter models, and we translate the current experimental sensitivity into implications for different dark matter models. It is found that the constraints from current atomic clocks and co-magnetometers can be competitive in the mass range m χ ∼ 10 −21 − 10 3 eV, depending on the model. We also comment on the (negligible) effect of different astrophysical neutrino backgrounds. 3 We take here the theory after EWSB, otherwise e L couplings come together with ν s and G u L = G d L . 4 For example the operatorψγ µ γ 5 ψ∂ µ χ 2 is proportional to the transferred momentum q so we discard it, but ∂ µ χ 2 is the only current that can be built with a real field; in contrast for a complex scalar we have two: ∂ µ (χ † χ) and (∂ µ χ † )χ − χ † ∂ µ χ. The second one is proportional to the sum of incoming and outgoing DM momenta in a scattering process.

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Section: Cosmic Neutrinosmentioning

confidence: 96%

Exploring the ultra-light to sub-MeV dark matter window with atomic clocks and co-magnetometers

Alonso

Blas

Wolf

2019

J. High Energ. Phys.

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“…and another one regarding the difficulties of detecting a large enough sample of UHE neutrinos in order to resolve the dips. The method based on interferometers [563] is even more complicated to address. At interferometers, current sensitivities to accelerations are of the order of a 10 −16 cm/s 2 , with an optimistic estimation of a 3 · 10 −18 cm/s 2 [563] for the incoming generation.…”

Section: G Prospects From Relic Neutrino Direct Detectionmentioning

confidence: 99%

“…The method based on interferometers [563] is even more complicated to address. At interferometers, current sensitivities to accelerations are of the order of a 10 −16 cm/s 2 , with an optimistic estimation of a 3 · 10 −18 cm/s 2 [563] for the incoming generation. However, expected accelerations due to relic neutrino interactions are of the order of 10 −27 − 10 −33 cm/s 2 [555,563], many orders of magnitude below the sensitivity of the nextgeneration interferometers.…”

Section: G Prospects From Relic Neutrino Direct Detectionmentioning

confidence: 99%

Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects

Salas

Gariazzo

Mena

et al. 2018

Front. Astron. Space Sci.

193

197

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The ordering of the neutrino masses is a crucial input for a deep understanding of flavor physics, and its determination may provide the key to establish the relationship among the lepton masses and mixings and their analogous properties in the quark sector. The extraction of the neutrino mass ordering is a data-driven field expected to evolve very rapidly in the next decade. In this review, we both analyze the present status and describe the physics of subsequent prospects. Firstly, the different current available tools to measure the neutrino mass ordering are described. Namely, reactor, long-baseline (accelerator and atmospheric) neutrino beams, laboratory searches for beta and neutrinoless double beta decays and observations of the cosmic background radiation and the large scale structure of the universe are carefully reviewed. Secondly, the results from an up-to-date comprehensive global fit are reported: the Bayesian analysis to the 2018 publicly available oscillation and cosmological data sets provides strong evidence for the normal neutrino mass ordering versus the inverted scenario, with a significance of 3.5 standard deviations. This preference for the normal neutrino mass ordering is mostly due to neutrino oscillation measurements. Finally, we shall also emphasize the future perspectives for unveiling the neutrino mass ordering. In this regard, apart from describing the expectations from the aforementioned probes, we also focus on those arising from alternative and novel methods, as 21 cm cosmology, core-collapse supernova neutrinos and the direct detection of relic neutrinos.10 Here, σ 8 corresponds to the normalization of the matter power spectrum on scales of 8h −1 Mpc, see Equation (13). 11 The thermal SZ thermal effect consists on a spectral distortion on CMB photons which arrive along the line of sight of a cluster.

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“…Although we have not discussed them in detail, other proposals to search for the CνB, such as using laser interferometers [27], that do not involve looking for electrons above the β decay endpoint could also be impacted by the decay of dark matter to neutrinos. While potential signals in such a setup are not likely to lead to large effects, assessing the sensitivity of new techniques in general to the signal described in this paper would be interesting.…”

Section: Discussionmentioning

confidence: 99%

Cosmic neutrino background search experiments as decaying dark matter detectors

McKeen

2019

Phys. Rev. D

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We investigate the possibility that particles that are long-lived on cosmological scales, making up part or all of the dark matter, decay to neutrinos that have present-day energies around an eV. The neutrinos from these decays can potentially be visible at experiments that hope to directly observe the cosmic neutrino background through neutrino capture on tritium, such as PTOLEMY.In the context of a simple model that can realize such decays, we discuss the allowed signatures at a PTOLEMY-like experiment given current cosmological constraints.

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Detection prospects for the Cosmic Neutrino Background using laser interferometers

Cited by 38 publications

References 92 publications

Exploring the ultra-light to sub-MeV dark matter window with atomic clocks and co-magnetometers

Exploring the ultra-light to sub-MeV dark matter window with atomic clocks and co-magnetometers

Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects

Cosmic neutrino background search experiments as decaying dark matter detectors

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