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

May 16, 2025

LAPP/LAPTh joint seminar

The unprecedented precision of data coming from space challenges our understanding of the origin and the behaviour of particles arriving from space. The interpretation of these data is stimulating a very rich and active debate in the astroparticle community, with strong discovery and constraining potentials on many topics such as dark matter, acceleration and transport of cosmic rays, Galactic sources. However, the consensus in the community is that these interpretations are limited by nuclear cross-section uncertainties. We will present a road map to close the most urgent cases by accelerator campaigns undertaken at facilities or experiments for ongoing and future cross-section measurements.

The seminar will be in English.

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LAPP Physicists Among Winners of Prestigious Breakthrough Prize in Fundamental Physics

Seminars & Defenses

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.

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

This bilingual seminar aims to demystify Feynman diagrams for all LAPP/LAPTh staff. Firstwe will explore these essential tools of particle physics in an accessible way, using everyday analogies. The second part will be aimed at physicists focusing on the art of effectively communicating these concepts to a non-specialist audience.