M. DAHLKEMPER (CERN) – Seminar – January 31st 2025 – 14h

January 28, 2025

Décoder les Diagrammes de Feynman : Un Guide pour Tous et un Art pour les Physiciens

This bilingual (French/English) seminar aims to demystify Feynman diagrams for all LAPP/LAPTh staff. First, primarily in French, we will explore these essential tools of particle physics in an accessible way, using everyday analogies to make these complex concepts understandable to non-physicists. The second part, which may include more elements in English, will be aimed at physicists, focusing on the art of effectively communicating these concepts to a non-specialist audience. The goal is to strengthen cohesion within the laboratory by fostering a shared understanding of our fundamental research, while improving our collective ability to communicate the beauty and importance of particle physics to the general public.

Lien Indico

Seminars & Defenses

FCC-SEED: A Vertex Detector Concept for Future Electron-Positron Colliders at CERN – J. Andrea (IPHC) – June 13rd 2025 @2pm

The European Strategy for Particle Physics is focusing on developing an electron-positron collider, with plans to be detailed in the 2026 update. Proposed projects include CLIC, ILC, and FCC-ee. France is leading the FCC-SEED project to design an advanced vertex detector using thin Monolithic Active Pixel Sensors. This seminar will discuss the FCC-ee project's goals, detector requirements, the FCC-SEED design, and progress on MIMOSIS chips.

Galactic cosmic rays and the role of precision cross-sections – F. Donato (Turin University) – May 23rd 2025 @14h

The unprecedented precision of spatial data challenges our understanding of cosmic rays, stimulating debates on dark matter, the acceleration and transport of cosmic rays, and galactic sources. Interpretations are limited by uncertainties in nuclear cross-sections. A roadmap is proposed to address these issues through ongoing and future measurements.

R. Taillet (Université de Savoie/LAPTH) – Seminar – April 4th 2025 – 14h

Nicolas Copernicus proposed a heliocentric model in 1543, placing the Sun at the center of the universe, in contrast to Ptolemy's geocentric model. This revolution is often oversimplified, obscuring the nuances of his proposal. A seminar by Richard Taillet explores this model in detail, including its challenges and the reactions it provoked.