karvaton
Karvaton is a term used in speculative physics and in science fiction to denote a hypothetical elementary particle that interacts only weakly with known matter. Descriptions of karvaton vary across sources, but it is commonly treated as part of a hidden or dark sector not described by the Standard Model. In fiction, karvaton may be invoked as a mediator of new forces or as a carrier of exotic phenomena.
Etymology and usage of the word karvaton are not tied to a single origin or tradition. The
Potential properties and implications are described variably in different contexts. Hypothesized characteristics often include electric neutrality,
Relation to research and fiction: In real-world physics, karvaton is not an established particle. As a placeholder