General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DRF-25-0449
Direction
DRF
Thesis topic details
Category
Corpuscular physics and outer space
Thesis topics
DEVELOPMENT OF AN AI-BASED FRAMEWORK IN NEUTRINO PHYSICS: A FOCUS ON TIME SERIES EVENT RECONSTRUCTION AND MULTIVARIATE SCIENCE ANALYSES
Contract
Thèse
Job description
Neutrinoless double beta decay (0nßß) represents a pivotal area of research in nuclear physics, offering profound insights into neutrino properties and the potential violation of lepton number conservation. The CUPID experiment is at the forefront of this investigation, employing advanced scintillating bolometers at cryogenic temperatures to minimize radioactive background noise. It aims to achieve unprecedented sensitivity in detecting 0nßß decay using lithium molybdate (Li2MoO4) crystals. These crystals are particularly advantageous due to their scintillation properties and the high Q-value of the decay process, which lies above most environmental gamma backgrounds. In turn this endeavour will require operating a fine grained array of 1596 dual heat/light detectors with excellent energy resolution. The proposed thesis integrates artificial intelligence (AI) techniques to enhance data analysis, reconstruction, and modeling for the CUPID experiment demonstrators and the science exploitation of CUPID.
The thesis will focus on two primary objectives:
1. Improved Time Series Event Reconstruction Techniques
- CNN based denoising and comparison against optimal classical techniques
2. Multivariate science analysis of a large neutrino detector array
- Analysis of Excited States: The study will use Geant4 simulations together with the CUPID background model as training data to optimize the event classification and hence science potential for the analysis of 2nßß decay to excited states.
University / doctoral school
PHENIICS (PHENIICS)
Paris-Saclay
Thesis topic location
Site
Saclay
Requester
Position start date
01/10/2025
Person to be contacted by the applicant
Schmidt Benjamin
benjamin.schmidt@cea.fr
CEA
DRF/IRFU
CEA Paris-Saclay, Bat 141, Pce 26A
91191 Gif-sur-Yvette Cedex
Tutor / Responsible thesis director
Nones Claudia
claudia.nones@cea.fr
CEA
DRF
Bat.141 - Pce 41A
En savoir plus
https://irfu.cea.fr/dphp/Phocea/Vie_des_labos/Ast/ast_technique.php?id_ast=3900&id_unit=8
https://cupid.lngs.infn.it/