Ioannis Dalianis

Sep 29, 2023 | link.aps.org | Clermont Auvergne |Dimitrios Karamitros |Ioannis Dalianis |Andreas Goudelis

The freeze-in mechanism has been shown to allow the simultaneous generation of cosmic dark matter and a viable matter-antimatter asymmetry in the Universe. When the underlying interactions are described by higher-dimensional, nonrenormalizable operators, the relevant freeze-in processes take place close to the highest considered cosmic temperatures.