2009/10/01 by Brian Feldstein, A. Liam Fitzpatrick, Emanuel Katz +1 · 4 citations
Physics and Astronomy · #Astrophysics #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Energy (signal processing) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Recoil #Simple (philosophy) #WIMP #hep-ph
paper · pdf · doi:10.1088/1475-7516/2010/03/029
6 pages, 2 figures
arxiv created 2009/10/01 · openalex publication_date 2010/03/23 · arxiv updated 2015/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider the possibility that the DAMA signal arises from channeled events in simple models where the dark matter interaction with nuclei is suppressed at small momenta. As with the standard WIMP, these models have two parameters (the dark matter mass and the size of the cross-section), without the need to introduce an additional energy threshold type of parameter. We find that they can be consistent with channeling fractions as low as about ∼ 15%, so long as at least ∼ 70% of the nuclear recoil energy for channeled events is deposited electronically. Given that there are reasons not to expect very large channeling fractions, these scenarios make the channeling explanation of DAMA much more compelling.