Status of inelastic dark matter
By David Tucker-Smith, N. Weiner. 2004
200 citations recorded by the source corpus.
In light of recent positive results from the DAMA experiment, as well as new null results from CDMS Soudan, Edelweiss, ZEPLIN-I and CRESST, we reexamine the framework of inelastic dark matter with a standard halo. In this framework, which was originally introduced to reconcile tensions between CDMS and DAMA, dark matter particles can scatter off of nuclei only by making a transition to a nearly degenerate state that is roughly 100 keV heavier. We find that recent data significantly constrains the parameter space of the framework, but that there are still regions consistent with all experimental results. Because of the enhanced annual modulation and dramatically different energy dependence in this scenario, we emphasize the need for greater information on the dates of data taking, and on the energy distribution of signal and background. We also study the specific case of 'mixed-sneutrino' dark matter, and isolate regions of parameter space which are cosmologically interesting for that particular model. A significant improvement in limits by heavy target experiments such as ZEPLIN or CRESST should be able to confirm or exclude the inelastic dark matter scenario in the near future. Within the mixed-sneutrino model, an elastic scattering signature should be seen at upcomingmore » germanium experiments, including future results from CDMS Soudan.« less
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/0473c1915bddede1365e3c12dda0afcfdca62f4a
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In Astronomy and Astrophysics
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Citations in the corpus
- Sneutrino cold dark matter, a new analysis: Relic abundance and detection rates (2007, methodology): “The last class of models we consider contains right–handed sneutrino fields and lepton– flavour violating terms simultaneously [7, 8, 9, 10, 11 , 12, 13, 14, 15] and is discussed in Sect.”