Organizers:
Francesco D'Eramo (University of Padua & INFN Padua)
Dimitrios Karamitros (University of Padua & INFN Padua)
Alessandro Lenoci (The Hebrew University of Jerusalem)
Matteo Viel (SISSA)
Understanding the dark universe remains a major challenge in fundamental physics. A key approach is to study the cosmological imprints of hypothetical dark particles, a strategy set to benefit from upcoming data. Accurately tracking their evolution and abundances is essential for linking them to cosmological observables. Current analyses often rely on approximations, assuming a thermal phase space distribution. However, recent theoretical advances and new observations call for a more precise approach: following the full phase space distribution of dark particles over cosmic history. This presents significant computational challenges, requiring the solution of integro-differential equations in a high-dimensional space.
This focus week will assess the state of the field and key challenges. We will explore
(i) the prospects for phase space analyses of dark particles and their role in constraining cosmological observables
(ii) practical strategies to overcome the computational challenges of tracking their phase space distribution across cosmological time scales.
