Kiillotamaton

Kiillotamaton is a theoretical particle first introduced in speculative physics literature in the early 2020s. The concept was proposed to explain anomalies observed in the scattering rates between dark matter candidates and nucleons in underground detectors. According to the model, a kiillotamaton would be a massive, neutral boson that couples weakly to both dark matter and ordinary matter through higher‑dimensional operators. The particle's mass is postulated to lie in the range of a few hundred GeV to several TeV, with a decay width that would render it effectively stable on experimental timescales.

The kiillotamaton framework arises from extensions of the Standard Model that introduce a new U(1) symmetry, under which standard model fields are neutral but certain dark‑matter multiplets carry charge. When the symmetry is spontaneously broken, the gauge boson associated with this U(1) acquires mass and is identified as the kiillotamaton. Its interaction strength is parametrized by a mixing angle that is constrained by precision electroweak measurements and astrophysical observations.

Despite its appeal, the kiillotamaton has not been directly detected. Current experimental limits from direct‑detection experiments such as XENONnT and indirect searches from the Fermi Large Area Telescope place upper bounds on the product of its coupling constants. Future high‑luminosity runs at the Large Hadron Collider and next‑generation direct‑detection facilities might probe the parameter space predicted by the model. Until then, the kiillotamaton remains a speculative construct illustrating how new gauge bosons could mediate interactions between visible and dark sectors.