LAPP and LAPTh Wednesdays: "Seeing the invisible: how do we observe the Higgs boson with the ATLAS detector?"

As part of the LAPP and LAPTh Wednesdays series, the Annecy Laboratory of Particle Physics (LAPP) and the Annecy Laboratory of Theoretical Physics (LAPTh) are organizing a conference entitled "Seeing the invisible: how do we observe the Higgs boson with the ATLAS detector? " which will take place on Wednesday, January 21, 2026, from 6:00 p.m. to 7:00 p.m. at the LAPP premises on the Annecy campus, and will be preceded by a visit to the EUTOPIA discovery area from 5:00 p.m. to 6:00 p.m.

This lecture will be presented by Marco Delmastro, a researcher at LAPP. It will be possible to visit the laboratory before the lecture, starting at 5 p.m., for exclusive discussions with the scientists.

About the conference

How can we see what is invisible to the naked eye? Starting with everyday objects—such as a simple glass of water or LEGO bricks—this lecture takes us on a journey into the infinitely small: atoms, molecules, elementary particles, and the ultimate limits of matter. From our senses to particle detectors, and in particular the ATLAS detector, a true technological feat, we will discover how physicists measure the tiny traces left by mysterious particles such as the Higgs boson, amid immense noise. This exploration is a true human adventure, mobilizing physicists, engineers, computer scientists, and technicians, and questioning the very meaning of fundamental research: why do we seek to see the invisible?

About LAPP and LAPTh Wednesdays

One Wednesday per month, scientists from LAPP and LAPTh invite you to discover a different facet of research during a free event open to all. Lectures, tours, discussions, workshops... Several formats accessible to all audiences will be offered throughout the year.

Learn more

• Free event, no registration required (subject to availability). More information on the LAPP website.
• Check out the program for upcoming LAPP and LAPTh Wednesdays