Strongly interacting massive particle

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A strongly interacting massive particle (SIMP) is a hypothetical particle that interacts strongly between themselves and weakly with ordinary matter, but could form the inferred dark matter despite this. [1] [2] [3]

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Strongly interacting massive particles have been proposed as a solution for the ultra-high-energy cosmic-ray problem [4] [5] and the absence of cooling flows in galactic clusters. [6] [7]

Various experiments and observations have set constraints on SIMP dark matter from 1990 onward. [8] [9] [10] [11] [12] [13]

SIMP annihilations would produce significant heat. DAMA set limits with NaI(Tl) crystals. [11] [ citation needed ]

Measurements of Uranus's heat excess exclude SIMPs from 150 MeV to 104 GeV. [14] Earth's heat flow significantly constrains any cross section. [15]

See also

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References

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  11. 1 2 Bacci, C.; et al. (1996), "Improved limits on strongly interacting massive particles with NaI(Tl) scintillators", Astroparticle Physics, 4 (3): 195–198, Bibcode:1996APh.....4..195B, doi:10.1016/0927-6505(95)00032-1
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