Dark Matters 2022

Session

DM pheno and experiments

1 Dec 2022, 14:00

Salle Solvay (NO Buidling, 5th floor) (ULB, Campus de la Plaine)

33. Co-genesis in a dark sector

Xiaoyong Chu

01/12/2022, 14:00

A dark sector with its internal structure can generate the observed dark matter abundance and baryon asymmetry and thus addresses the coincidence between the two. This talk focuses on the framework in which non-vanishing chemical potentials may grow in such a dark sector, leading to a rich phenomenology. I will discuss the models and the relevant phenomenological predictions, including dark...

24. Mapping the viable parameter space for testable leptogenesis

Yannis Georis

01/12/2022, 14:40

In this talk, we describe how one can map the range of active-sterile neutrino mixing angles in which leptogenesis is possible in the type I seesaw model with three heavy neutrinos with Majorana masses between 50 MeV and 70 TeV, covering the entire experimentally accessible mass range. Our study includes both, the asymmetry generation during freeze-in (ARS mechanism) and freeze-out (resonant...

20. Dark Matter Searches with IceCube

Juan Antonio AGUILAR SANCHEZ

01/12/2022, 14:55

21. Indirect dark matter searches

Dr Gabrijela Zaharijas (University of Nova Gorica)

01/12/2022, 16:05

We live in a golden age for astro-particle physics, with a significant number of experiments actively monitoring high-energy Universe. Many of these probes provide excellent tests of particle physics models of dark matter particles. In particular, experiments such as Fermi -LAT, AMS-02, Ice Cube, ... are significantly cutting into the parameter space of one of the most popular candidates, the...

23. On machines learning about some dark matters

Bryan Zaldivar

01/12/2022, 16:45

In this talk I plan to review Dark Matter studies which benefit from modern statistical algorithms and tools. I will start by motivating the use of such tools in nowadays physics, while stressing their most important "warnings", typically overlooked by our community. The discussion will then focus on some astrophysical DM studies, also including direct detection and collider searches.

12. Towards reconstructing the halo clustering and halo mass function of N-body simulations using neural ratio estimation

Androniki Dimitriou

01/12/2022, 17:25

High-resolution cosmological N-body simulations are excellent tools for modelling the formation and clustering of dark matter haloes. These simulations suggest complex physical theories of halo formation governed by a set of effective physical parameters. Our goal is to extract these parameters and their uncertainties in a Bayesian context. In this talk, I will explain how we make a step...