Rationale
The origin of the matter-antimatter asymmetry in the Universe remains an unsolved enigma that requires physics beyond the standard model.
The dominant paradigm today is that from a very early phase the Universe has been composed almost exclusively of matter. Yet, we have high-quality astrophysical and cosmological observations that hold the potential to quantify the presence of antimatter in the Universe far beyond what has been done to date.
This workshop seeks to bring together theorists, observers and experimentalists working on antimatter and related fields. Together, we will discuss how recent and forthcoming observations of the Universe can provide new insights into the origin of the matter-antimatter asymmetry.
Topics
Local Universe: cosmic-ray antinuclei, gamma rays from antimatter annihilation, unidentified gamma-ray sources
Large-scale Universe: cosmic backgrounds (gamma rays, microwaves, radio, gravitational waves ...), Big-Bang nucleosynthesis, history of large-scale structures, galaxy and star formation
Theory: baryogenesis, alternative models of the matter-antimatter asymmetry, CP and CPT violation
Experiments: precision measurements of antimatter systems, CP violation with collider and neutrino experiments, antinuclei
This is a CERN-TH Institute with additional support by Action Thématique Phénomènes Extrêmes et Multi-messagers (ATPEM) and Cosmologie et Galaxies (ATCG) of CNRS/INSU PN Astro with INP and IN2P3, co-funded by CEA and CNES.
