TY - T1 - A novel way to determine the scale of inflation SN - / UR - http://hdl.handle.net/10138/307212 T3 - A1 - Enqvist, Kari; Hardwick, Robert J.; Tenkanen, Tommi; Vennin, Vincent; Wands, David A2 - PB - Y1 - 2018 LA - eng AB - We show that in the Feebly Interacting Massive Particle (FIMP) model of Dark Matter (DM), one may express the inflationary energy scale H-* as a function of three otherwise unrelated quantities, the DM isocurvature perturbation amplitude, its mass and its self-coupling constant, independently of the tensor-to-scalar ratio. The FIMP model assumes that there exists a real scalar particle that alone constitutes the DM content of the Universe and couples to the Standard Model via a Higgs portal. We ... VO - IS - SP - OP - KW - cosmology of theories beyond the SM; dark matter theory; inflation; particle physics - cosmology connection; INTERACTING DARK-MATTER; ENERGY-MOMENTUM TENSOR; GAUGE SINGLET SCALARS; REHEATING TEMPERATURE; PHASE-TRANSITION; UNIVERSE; VACUUM; THERMALIZATION; FLATNESS; HORIZON; 115 Astronomy, Space science N1 - PP - ER -