Probing Sub-GeV Dark Matter with Conventional Detectors

Kouvaris, Chris; Pradler, Josef

doi:10.1103/physrevlett.118.031803

Cited by 167 publications

(184 citation statements)

References 51 publications

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“…The LUX limits are significantly stronger and already reach the principal reach projected in Ref. [33]. This is because the displacement of signal and background regions, not previously considered, further reduces the background rate below the value considered in Ref.…”

Section: Lux Constraintsmentioning

confidence: 65%

“…Our XENON100 limit is slightly weaker than in Ref. [33] because we adopt the Q y used in our LUX analysis, which has a cut-off at 0.19 keV. Before this work, CRESST-II and XENON100 (S2-only) provided the most stringent direct detection constraints on the DM-nucleon cross-section in this mass range.…”

Section: Lux Constraintsmentioning

confidence: 99%

“…Reference [33] demonstrated that existing xenon detectors can probe sub-GeV DM through a new signal channel: a search for the irreducible photon emis- * christopher.mccabe@kcl.ac.uk sion from a polarised xenon atom, caused by the displacement of the nucleus and electron charges after the xenon nucleus recoils, and derived constraints from the XENON10 and XENON100 S2-only searches [34,35]. In this DM + Xe → DM + Xe + γ inelastic scattering process with a photon in the final state, the maximum photon energy is ω max ≈ 3 keV · (m DM /1 GeV).…”

Section: Introductionmentioning

confidence: 99%

“…1 We calculate the parameter space excluded with data from LUX's two WIMP searches (WS2013 [36] and WS2014-16 [37]) and show that the LUX constraints are up to three orders of magnitude more sensitive than the XENON10 and XENON100 S2-only searches considered in Ref. [33]. This is because the photon's energy is large enough to produce detectable scintillation and ionisation charge signals, with the result that events from the fiducial volume, where the background is lower [38], can be selected.…”

Section: Introductionmentioning

confidence: 99%

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New constraints and discovery potential of sub-GeV dark matter with xenon detectors

McCabe

2017

Phys. Rev. D

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Existing xenon dark matter (DM) direct detection experiments can probe the DM-nucleon interaction of DM with a sub-GeV mass through a search for photon emission from the recoiling xenon atom. We show that LUX's constraints on sub-GeV DM, which utilise the scintillation (S1) and ionisation (S2) signals, are approximately three orders of magnitude more stringent than previous xenon constraints in this mass range, derived from the XENON10 and XENON100 S2-only searches. The new LUX constraints provide the most stringent direct detection constraints for DM particles with a mass below 0.5 GeV. In addition, the photon emission signal in LUX and its successor LZ maintain the discrimination between background and signal events so that an unambiguous discovery of sub-GeV DM is possible. We show that LZ has the potential to reconstruct the DM mass with 20% accuracy for particles lighter than 0.5 GeV.

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Section: Lux Constraintsmentioning

confidence: 65%

Section: Lux Constraintsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New constraints and discovery potential of sub-GeV dark matter with xenon detectors

McCabe

2017

Phys. Rev. D

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“…We will also apply our results to the DAMIC bounds discussed in [12] derived from an engineering run of DAMIC [14]. Additional possible methods for detecting sub-GeV DM include superconductors [15,16], superfluid helium [17,18], as well as a search tactic employing conventional DM detectors wherein a detectable photon is emitted from the scattered nucleus [19].…”

Section: Introductionmentioning

confidence: 96%

Terrestrial effects on dark matter-electron scattering experiments

2017

Self Cite

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A well-studied possibility is that dark matter may reside in a sector secluded from the Standard Model, except for the so-called photon portal: kinetic mixing between the ordinary and dark photons. Such interactions can be probed at dark matter direct detection experiments, and new experimental techniques involving detection of dark matter-electron scattering offer new sensitivity to sub-GeV dark matter. Typically however it is implicitly assumed that the dark matter is not altered as it traverses the Earth to arrive at the detector. In this paper we study in detail the effects of terrestrial stopping on dark photon models of dark matter, and find that they significantly reduce the sensitivity of XENON10 and DAMIC. In particular we find that XENON10 only excludes masses in the range (5-3000) MeV while DAMIC only probes (20-50) MeV. Their corresponding cross section sensitivity is reduced to a window of cross sections between (5 × 10 −38 − 10 −30 ) cm 2 for XENON10 and a small window around ∼ 10 −31 cm 2 for DAMIC. We also examine implications for a future DAMIC run.

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Aspects of WIMP Dark Matter Searches at Colliders and Other Probes

Morgante

2017

Springer Theses

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UNIVERSITÉ DE GENÈVE FACULTÉ DES SCIENCES AbstractThe problem of Dark Matter is one of the most longstanding problems in cosmology and particle physics, and surely one of the most interesting. A number of astrophysical and cosmological evidences point to the existence of a large amount of non luminous matter, whose nature is still a mistery. The simplest possible solution to this puzzle is in terms of new neutral and stable particles with weak-scale mass and couplings (named WIMPs for weakly interacting massive particles), which would not only reproduce naturally the observed cosmological Dark Matter abundance, but also fit very well in many well-motivated theories for physics beyond the Standard Model. In this thesis I discuss the present status of WIMP searches and of our understanding of the theoretical issues involved in them, with a particular emphasis to searches at the Large Hadron Collider.iii iv ABSTRACT List of publicationsPapers that appear in this thesis [1] ResuméLe problème de la matière noire (DM, de l'anglais Dark Matter) peut être résumé comme suit : plusieurs anomalies ont été observées, depuis 1933, à partir des échelles galactiques jusqu'à celles des plus large structures, qu'on ne peut pas expliquer que par l'existence de quelques éléments pas lumineux qui constituent plus de 80% de la masse totale des galaxies et des amas de galaxies, ou sinon par quelques modifications supplé-mentaires de la Relativité Générale. La quelle des deux solutions est correcte est encore matière à débat, même si une modification du contenu de la matière est généralement considéré plus probable. De plus, c'est un résultat bien établi le fait que les objets astrophysiques exotiques peuvent constituer seulement une petite partie du total de la Matière noire contenu dans l'Univers, avec seulement quelques petites fenêtres laissées ouvertes par l'observation astrophysique. à cause de ça, la solution la plus plausible du puzzle semble être dans la forme des particules subatomiques.Notre connaissance actuelle de la physique des particules est fondée sur l'ainsi nommé Modèle Standard (SM). La seule candidate de DM dans le Modèle Standard est le neutrino, mais, comme on verra dans le chapitre 1.3, les neutrinos ne peuvent pas constituer toute la DM, et l'introduction des nouvelles particules est necessaire. Deux faits très intéressants se présentent à ce moment. D'un côté, un simple calcul de l'abondance de la DM dans le modèle du Big Bang chaud indique qu'une particule avec une masse et une constante de couplage typiques des interactions faibles aurait la juste abondance aujourd'hui. Cette coïncidence est appelée le "WIMP miracle", pour weakly interacting massive particle. De l'autre côté, le SM souffre l'ainsi nommé "problème de la hiérarchie de l'échelle électrofaible", ça veut dire que l'échelle électrofaible est instable contre les corrections quantiques et, en supposant que le SM n'est que la limite de basse energie d'une physique plus fondamentale, peut-être à l'échelle de Planck, un choix ajusté finement...

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Probing Sub-GeV Dark Matter with Conventional Detectors

Cited by 167 publications

References 51 publications

New constraints and discovery potential of sub-GeV dark matter with xenon detectors

New constraints and discovery potential of sub-GeV dark matter with xenon detectors

Terrestrial effects on dark matter-electron scattering experiments

Aspects of WIMP Dark Matter Searches at Colliders and Other Probes

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