Conveners
Plenary 2
- Michel Tytgat (Université Libre de Bruxelles)
We propose a new class of inflationary attractors in metric-affine gravity. Such class features a non-minimal coupling $\tilde\xi \, \Omega(\phi)$ with the Holst invariant $\tilde {\cal R}$ and an inflaton potential proportional to $\Omega(\phi)^2$. The attractor behaviour of the class takes place with two combined strong coupling limits. The first limit is realized at large $\tilde\xi$, which...
The process of thermal dark matter production can be significantly more complex and richer than is usually assumed. In this talk I will discuss some of the recent progress in understanding the impact of non-equilibrium effects on multi-component freeze-in. In particular, I will present a sequential freeze-in realisation for a simple model of scalar dark matter coupled to the visible sector...
In this work we propose a setup for the origin of dark matter based on spacetime with a warped extra dimension and three branes: the Planck brane, the TeV brane and a dark brane, at a (sub)-GeV scale. The Standard Model is localized in the TeV brane, thus solving the Higgs hierarchy problem, while the dark matter χ, a Dirac fermion, is localized in the dark brane. The dark matter has only...
