Seminario CAPA. Anatael Cabrera (CNRS. Université Paris-Saclay)

"LiquidO:  Fundamental Particle Detection Beyond Transparency"
Anatael Cabrera
(CNRS. Université Paris-Saclay)

Abstract:
For several decades, radiation detection has been vital to society and
humanity, forming the experimental foundation of much of our
understanding of the Universe. Most light-based detection technologies,
such as those relying on scintillation and Cherenkov radiation, rely on
a fundamental principle: the medium’s impeccable transparency,
enabling detection with only a handful of photons. This requirement
becomes especially critical in large instrumented volumes, such as those
used in neutrino physics. While these technologies have achieved
significant success, including several Nobel Prize-winning discoveries,
they are constrained by notable limitations. In particular, event-wise
particle identification is rare and often impractical. As a result,
experiments rely on cumbersome and costly shielding, such as deep
underground laboratories, to mitigate overwhelming cosmic-ray
backgrounds.
In this seminar, I will introduce the innovative LiquidO technology,
which uniquely utilises light detection in “opaque” media and has
also pioneered the notion of opaque scintillation. LiquidO enables
event-wise imaging of subatomic particles, allowing event topology and
fast timing to facilitate particle identification even at energies as
low as a fraction of a MeV. I will conclude with highlights on prospects
for LiquidO-based experiments. 
 

Fecha: viernes, 23 de mayo de 2025
Hora:   12:00 horas
Lugar: Seminario de Física Atómica, Molecular y Nuclear