Inelastic dark matter

David Smith, Neal Weiner

    Research output: Contribution to journalArticle

    Abstract

    Many observations suggest that much of the matter of the universe is nonbaryonic. Recently, the DAMA Nal dark matter direct detection experiment reported an annual modulation in their event rate consistent with a WIMP relic. However, the Cryogenic Dark Matter Search (CDMS) Ge experiment excludes most of the region preferred by DAMA. We demonstrate that if the dark matter can only scatter by making a transition to a slightly heavier state (Δm∼100 keV), the experiments are no longer in conflict. Moreover, differences in the energy spectrum of nuclear recoil events could distinguish such a scenario from the standard WIMP scenario. Finally, we discuss the sneutrino as a candidate for inelastic dark matter in supersymmetric theories.

    Original languageEnglish (US)
    Article number043502
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume64
    Issue number4
    DOIs
    StatePublished - 2001

    Fingerprint

    Dark Matter
    dark matter
    demand assignment multiple access
    weakly interacting massive particles
    Experiment
    Scenarios
    Scatter
    Energy Spectrum
    Annual
    cryogenics
    Modulation
    energy spectra
    universe
    modulation
    Demonstrate

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)
    • Physics and Astronomy(all)
    • Nuclear and High Energy Physics
    • Mathematical Physics

    Cite this

    Inelastic dark matter. / Smith, David; Weiner, Neal.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 64, No. 4, 043502, 2001.

    Research output: Contribution to journalArticle

    Smith, David ; Weiner, Neal. / Inelastic dark matter. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2001 ; Vol. 64, No. 4.
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