This TH Institute is the fifth of a series of workshops started at CERN in 2022 and later held at the IFPU Trieste, the University of Parma and the GGI in Florence. The aim is to bring together the cosmology and particle theory communities to discuss current and future opportunities to probe fundamental physics, in the light of transformative Large Scale Structure (LSS) data that will be gathered in this decade.
This edition will focus on four major scientific themes:
1) Cosmological signatures of string theory
Cosmological data may provide the only opportunity to detect signals of new physics at the highest energy scales, potentially including quantum gravity. One of the goals of this Institute is to further explore such possibilities, including potential new signatures arising during inflation as well as in the physics responsible for the current accelerated expansion of the Universe.
2) New BSM opportunities in LSS
There is a rapidly growing community at the intersection of particle physics and cosmology that focuses on signatures of new physics on cosmological scales in LSS data. This interest has been driven by novel theoretical tools and data analysis techniques that, for the first time, allow meaningful study and constraints of relevant scenarios. However, the landscape of interesting models remains largely unexplored. A key goal of this Institute is to further develop and assess new ideas in light of the data expected over the next several years.
3) Further development of the EFTofLSS
The Effective Field Theory of LSS has become the principal framework for interpreting galaxy clustering datasets. While most foundational work has been completed for ΛCDM cosmology, many open questions remain in its application to cosmological models with modified late-time dynamics. Leading experts will be invited to discuss recent theoretical developments, outstanding challenges relevant to BSM scenarios, and opportunities for more optimal data analyses.
4) Review of the latest data releases
By mid-2026, several important data releases are anticipated from DESI, Euclid, and SPHEREx. DESI is expected to present the full-shape analysis of the DR2 data, Euclid to release its first weak-lensing results, and SPHEREx may provide major updates toward achieving the f_NL ~ 1 sensitivity goal in the coming years. Dedicated talks from all three collaborations are planned, contingent on the release timelines.
Confirmed speakers:
- ...
- ...
- ...
Organizers:
- Emanuele Castorina (University of Milan)
- Matthew Lewandowski (CERN)
- Azadeh Moradinezhad Dizgah (CNRS - LAPTh Annecy)
- Diego Redigolo (INFN Florence)
- Ennio Salvioni (UA Barcelona and IFAE)
- Marko Simonović (University of Florence)