Continuum Dark Sector in an Extra Dimension: A Spectrum of Mediators for Dark Matter Interactions and Galaxy Dynamics

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Researchers including Flip Tanedo, Ian Chaffey, Sylvain Fichet, and Philip Tanedo propose that dark matter interacts through a continuum of force carriers from an extra dimension, described by a holographic link between hard-to-solve three‑dimensional theories and a simpler higher‑dimensional picture, which could cause self‑interactions that help explain how stars move in small galaxies and predict a spectrum of mediators rather than a single particle, building on Hai‑Bo Yu’s prior self‑interacting dark matter ideas.