In particle physics, the lightest supersymmetric particle (LSP) is the generic name given to the lightest of the additional hypothetical particles found in supersymmetric models. In models with R-parity conservation, the LSP is stable; in other words, it cannot decay into any Standard Model particle, since all SM particles have the opposite R-parity. There is extensive observational evidence for an additional component of the matter density in the universe, which goes under the name dark matter. The LSP of supersymmetric models is a dark matter candidate and is a weakly interacting massive particle (WIMP).
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This article is an automated import of the Wikipedia article "Lightest supersymmetric particle", available at https://en.wikipedia.org/wiki/Lightest_supersymmetric_particle . Text is licensed under CC BY-SA 4.0.