486 citations · 2.6k across the 36 of their papers we have counts for
4 papers · 1 filter
Homeopathic Dark Matter, or how diluted heavy substances produce high energy cosmic rays
Marco Cirelli, Yann Gouttenoire, Kalliopi Petraki +1
We point out that current and planned telescopes have the potential of probing annihilating Dark Matter (DM) with a mass of O(100) TeV and beyond. As a target for such searches, we…
Dark matter bound states via emission of scalar mediators
Ruben Oncala, Kalliopi Petraki
If dark matter (DM) couples to a force carrier that is much lighter than itself, then it may form bound states in the early universe and inside haloes. While bound-state formation…
Radiative bound-state formation in unbroken perturbative non-Abelian theories and implications for dark matter
Julia Harz, Kalliopi Petraki
We compute the cross-sections for the radiative capture of non-relativistic particles into bound states, in unbroken perturbative non-Abelian theories. We find that the formation o…
21cm absorption signal from charge sequestration
Adam Falkowski, Kalliopi Petraki
The unexpectedly strong 21cm absorption signal detected by the EDGES experiment suggests that the baryonic gas was colder at redshift than predicted in the standard scen…