English

Inelastic Dark Matter

High Energy Physics - Phenomenology 2016-09-06 v1 Astrophysics

Abstract

Many observations suggest that much of the matter of the universe is non-baryonic. Recently, the DAMA NaI 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 (Delta m ~ 100kev), 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.

Keywords

Cite

@article{arxiv.hep-ph/0101138,
  title  = {Inelastic Dark Matter},
  author = {David Smith and Neal Weiner},
  journal= {arXiv preprint arXiv:hep-ph/0101138},
  year   = {2016}
}

Comments

20 pages, 6 figures