. . "In particle physics, the acronym WISP refers to a largely hypothetical weakly interacting sub-eV particle, or weakly interacting slender particle, or weakly interacting slim particle \u2013 low-mass particles which rarely interact with conventional particles, if ever, and then only via the weak interaction. The term is used to generally categorize a type of dark matter candidate, and is essentially synonymous with axion-like particle (ALP).With the exception of \u201Cactive\u201D neutrinos, all WISPs are hypothetical particles."@en . . . . . . . . . "67046091"^^ . . . . . "1122580681"^^ . . . . . . . . . . . . . . . . . . . "WISP (particle physics)"@en . . . . . . "In particle physics, the acronym WISP refers to a largely hypothetical weakly interacting sub-eV particle, or weakly interacting slender particle, or weakly interacting slim particle \u2013 low-mass particles which rarely interact with conventional particles, if ever, and then only via the weak interaction. The term is used to generally categorize a type of dark matter candidate, and is essentially synonymous with axion-like particle (ALP).With the exception of \u201Cactive\u201D neutrinos, all WISPs are hypothetical particles. WISPs are the low-mass counterpart of weakly interacting massive particles (WIMPs)."@en . "3829"^^ .