Seminars & Defenses

With statistical uncertainties shrinking in next-generation surveys (LSST, Simons Observatory, LiteBIRD), instrumental systematics now dominate, making absolute calibration critical. This seminar presents StarDICE (photometry) and POLOCALC (polarimetry), two experiments building an absolute metrological chain from laboratory standards to astronomy.

This seminar reviews how the Higgs and top-quark sectors, tightly linked by the Brout-Englert-Higgs mechanism, offer sensitive probes of physics beyond the Standard Model. Recent searches for coupling deviations using SMEFT/HEFT and ATLAS analyses of multi-top and tt̄HH production are presented.

Ce séminaire présente Rust, un langage système moderne (utilisé pour les noyaux, la robotique, etc.), en pleine expansion. Il en explore les atouts, les défauts et les particularités, le compare au C++ et à Python, et illustre son utilisation innovante par l’équipe CTA-RTA au LAPP.

GWTC-4 adds 128 new compact binary detections (total: 218), with some SNR > 30. The O4a GWB search sets 1.7×–2.1× tighter limits on energy density and polarizations. A+ sensitivity may detect the CBC background.

The Story of Poppy Humanoid: 1- Community Design – Governance, intellectual property, and collaborative tools. 2- Community Management – Role and challenges in open-source science.