Abstract
Cosmological evolution and particle creation in R2-modified gravity are considered for the case of the dominant decay of the scalaron into a pair of gauge bosons due to conformal anomaly. It is shown that in the process of thermalization superheavy dark matter with the coupling strength typical for the GUT SUSY can be created. Such dark matter would have the proper cosmological density if the particle mass is close to 10 12 GeV.
Original language | English |
---|---|
Article number | 1047 |
Number of pages | 11 |
Journal | European Physical Journal C |
Volume | 80 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov 2020 |
Keywords
- RADIOACTIVE DECAY