TY - T1 - UV freeze-in in Starobinsky inflation SN - / UR - http://hdl.handle.net/10138/335061 T3 - A1 - Bernal, Nicolas; Rubio, Javier; Veermäe, Hardi A2 - PB - Y1 - 2020 LA - eng AB - In the Starobinsky model of inflation, the observed dark matter abundance can be produced from the direct decay of the inflaton field only in a very narrow spectrum of closeto-conformal scalar fields and spinors of mass similar to 10(7) GeV. This spectrum can be, however, significantly broadened in the presence of effective non-renormalizable interactions between the dark and the visible sectors. In particular, we show that UV freeze-in can efficiently generate the right dark matter abundance fo... VO - IS - SP - OP - KW - dark matter theory; inflation; particle physics - cosmology connection; physics of the early universe; SCALAR-FIELD; DARK-MATTER; GRAVITY; 115 Astronomy, Space science N1 - PP - ER -