Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 82: Neutrino physics 9

T 82.3: Talk

Thursday, March 7, 2024, 16:30–16:45, Geb. 20.30: 2.058

Simulation of CLOUD, the first LiquidO reactor anti-neutrino experiment — •Cloé Girard-Carillo for the CLOUD collaboration — Johannes Gutenberg University, Mainz, Germany

LiquidO is an innovative particle detection paradigm using opaque liquid scintillators. The emitted light is confined near its creation point and captured by a lattice of wavelength-shifting fibers. This enables high-resolution imaging for particle identification down to the MeV scale, giving LiquidO the potential for various practical applications in particle physics.

After the successful development of two prototypes and with a third currently under construction, the next step is to build a 5 to 10-ton detector at the ultra-near site of the Chooz nuclear power plant in France. This is part of an Innovation program (EIC-Pathfinder project - AntiMatter-OTech) for monitoring nuclear reactor activity. The CLOUD collaboration, composed of 18 institutions over 11 countries, plans to exploit the fundamental science programme associated to this project.

Constructing the detector at the ultra-near site poses challenges, as being at the surface implies a high cosmic background rate. It also imposes strict constraints on design elements such as materials and maximum building size. The external background simulations presented in this talk are essential for guiding the detector design, taking into account these challenges. They play a crucial role in understanding the capabilities of a LiquidO-based detector operated at a nuclear power plant.

Keywords: Opaque scintillator; Particle Identification; Neutrino; Nuclear reactor; Simulations