Dark matter in light of the LUX results

Patrick J. Fox, Gabriel Jung, Peter Sorensen, Neal Weiner

    Research output: Contribution to journalArticle

    Abstract

    The landscape of dark matter (DM) direct detection has been profoundly altered by the slew of recent experiments. While some have claimed signals consistent with dark matter, others have seen few, if any, events consistent with dark matter. The results of the putative detections are often incompatible with each other in the context of naive spin-independent scattering, as well as with the null results. In particular, in light of the conflicts between the DM interpretation of the three events recently reported by the CDMS-Si experiment and the first results of the LUX experiment, there is a strong need to revisit the assumptions that go into the DM interpretations of both signals and limits. We attempt to reexamine a number of particle physics, astrophysics and experimental uncertainties. Specifically, we examine exothermic scattering, isospin-dependent couplings, modified halo models through astrophysics- independent techniques, and variations in the assumptions about the scintillation light in liquid xenon. We find that only a highly tuned isospin-dependent scenario remains as a viable explanation of the claimed detections, unless the scintillation properties of LXe are dramatically different from the assumptions used by the LUX experiment.

    Original languageEnglish (US)
    Article number103526
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume89
    Issue number10
    DOIs
    StatePublished - May 22 2014

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    dark matter
    scintillation
    astrophysics
    scattering
    xenon
    halos
    physics
    liquids

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Dark matter in light of the LUX results. / Fox, Patrick J.; Jung, Gabriel; Sorensen, Peter; Weiner, Neal.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 89, No. 10, 103526, 22.05.2014.

    Research output: Contribution to journalArticle

    Fox, Patrick J. ; Jung, Gabriel ; Sorensen, Peter ; Weiner, Neal. / Dark matter in light of the LUX results. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2014 ; Vol. 89, No. 10.
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