Hypothetical particles that may constitute dark matter
"WIMPs" redirects here. For other uses, see WIMPS (disambiguation).
Weakly interacting massive particles (WIMPs) are hypothetical particles that are one of the proposed candidates for dark matter.
There exists no formal definition of a WIMP, but broadly, it is an elementary particle which interacts via gravity and any other force (or forces), potentially not part of the Standard Model, which is as weak as or weaker than the weak nuclear force, but also non-vanishing in strength. Many WIMP candidates are expected to have been produced thermally in the early Universe, similarly to the particles of the Standard Model[1] according to Big Bang cosmology, and usually will constitute cold dark matter. Obtaining the correct abundance of dark matter today via thermal production requires a self-annihilation cross section of , which is roughly what is expected for a new particle in the 100 GeV mass range that interacts via the electroweak force.
Experimental efforts to detect WIMPs include the search for products of WIMP annihilation, including gamma rays, neutrinos and cosmic rays in nearby galaxies and galaxy clusters; direct detection experiments designed to measure the collision of WIMPs with nuclei in the laboratory, as well as attempts to directly produce WIMPs in colliders, such as the Large Hadron Collider at CERN.
Because supersymmetric extensions of the Standard Model of particle physics readily predict a new particle with these properties, this apparent coincidence is known as the "WIMP miracle", and a stable supersymmetric partner has long been a prime WIMP candidate.[2] However, recent null results from direct-detection experiments along with the failure to produce evidence of supersymmetry in the Large Hadron Collider (LHC) experiment[3][4] has cast doubt on the simplest WIMP hypothesis.[5]
^Garrett, Katherine (2010). "Dark matter: A primer". Advances in Astronomy. 2011 (968283): 1–22. arXiv:1006.2483. Bibcode:2011AdAst2011E...8G. doi:10.1155/2011/968283.
^Jungman, Gerard; Kamionkowski, Marc; Griest, Kim (1996). "Supersymmetric dark matter". Physics Reports. 267 (5–6): 195–373. arXiv:hep-ph/9506380. Bibcode:1996PhR...267..195J. doi:10.1016/0370-1573(95)00058-5. S2CID 119067698.
Weaklyinteractingmassiveparticles (WIMPs) are hypothetical particles that are one of the proposed candidates for dark matter. There exists no formal...
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A strongly interactingmassiveparticle (SIMP) is a hypothetical particle that interacts strongly between themselves and weakly with ordinary matter, but...
dark matter is some as-yet-undiscovered subatomic particle, such as weaklyinteractingmassiveparticles (WIMPs) or axions. The other main possibility is...
aforementioned WIMP A SIMP (strongly interactingmassiveparticle) is a particle that interact strongly between themselves and weakly with ordinary matter and could...
supersymmetric models is a dark matter candidate and is a weaklyinteractingmassiveparticle (WIMP). The LSP is unlikely to be a charged wino, charged...
fermionic particles. WeaklyInteractingMassiveParticles (WIMPs) are a broad category of theoretical particles, that interact not at all or very weakly with...
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dictionary. Wimp, WIMP, or Wimps may refer to: Weaklyinteractingmassiveparticle, a hypothetical particle of dark matter WIMP (computing), the "window...
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yield one of these values. (This is true for massive vector bosons; the situation differs for massless particles such as the photon, for reasons beyond the...
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