Exonen

Exonen is a term used in speculative physics and science fiction to denote a hypothetical fundamental entity that either mediates a novel interaction or functions as a quantum of information within an extended spacetime or hidden-sector framework. The exact definition varies by model, but common themes describe exonen as a nearly massless carrier with extremely weak couplings to the Standard Model, which allows it to escape detection in conventional experiments while enabling new theoretical mechanisms.

In particle-physics inspired variants, an exonen might act as a gauge boson of a proposed fifth force or as a mediator between ordinary matter and a dark or hidden sector. In information-theory inspired variants, an exonen is treated as a unit of information that can be stored, transmitted, or entangled across extra dimensions or novel media.

Origin and usage: The term arose in discussions about extensions to the Standard Model and in science-fiction worldbuilding as a shorthand for a speculative carrier of nonlocal effects or hidden information. There is no experimental evidence for exonen, and it remains a fringe or hypothetical construct used to illustrate how new physics might operate.

Relationship to other concepts: The exonen concept is often discussed alongside ideas such as dark photons, gravitons, axions, hidden sectors, and higher-dimensional theories. It is sometimes used in pedagogical contexts to explain how new hypothetical particles could be constrained by existing data.

See also: Exon, Gauge boson, Dark photon, Hidden sector, Quantum information, Extra dimensions.