Missions

The Particle Physics team at the Laboratoire des 2 Infinis - Toulouse (L2IT) is offering a post-doctoral contract to reinforce its activities on the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. The successful candidate will work at L2IT. His or her work will focus on the development of deep learning methods for reconstruction and physics analysis of the ATLAS experiment data.

Activités

The successful candidate will develop innovative analysis methods for the reconstruction or the physics analysis of data from the ATLAS experiment. The L2IT team plays a leading role within the ATLAS collaboration in the reconstruction of charged particle tracks using geometric deep learning (GDL). The person joining us can contribute to this effort, for example by applying GDL to novel signatures not yet explored in existing studies (electrons or tracks produced far away from the centre of the detector), by using this technique for the first time on Run 3 collision data, or by evaluating its performance achieved at the physics analysis level. Additionally, the L2IT effort on physics analysis focuses on understanding the dynamics of the scalar sector of the SM, by considering both the Higgs boson and the Nambu-Goldstone states. The successful candidate may contribute to the studies on di-Higgs production.

Compétences

We are looking for a colleague with a PhD in particle physics. Experience with machine learning and/or experience with reconstruction algorithms for particle physics would be a plus.

Contexte de travail

The Laboratoire des 2 Infinis - Toulouse (L2IT) is a laboratory created in 2020 to conduct research in fundamental physics with new numerical and theoretical approaches to data analysis. The laboratory's research focuses on particle physics, gravitational waves and the equation of state of nuclear matter, and is supported by the concurrent development of data science and analysis methodologies. L2IT is operated by CNRS/IN2P3 and Université Toulouse III - Paul Sabatier. The L2IT Particle Physics team contributes to understanding the dynamics of the scalar sector of the Standard Model through studies of the Higgs boson and of the polarisation of vector bosons. It contributes to the development of data reconstruction software for the new tracker (ITk) that the ATLAS collaboration will install for the high-luminosity phase of the LHC. The successful candidate will work in close collaboration with other members of the Particle Physics team, and with members of the Computing, Algorithms and Data team at L2IT.

Application procedure:

Interested applicants should send:
1. A letter of application focusing on their research interests and their motivation to join the group.
2. A Curriculum Vitae.
3. A list of publications and internal notes to which they have contributed, highlighting their contributions.
4. E-mail addresses of two referees; we will ask the referees to send recommendation letters only after pre-selection.

The position is initally for two years, potentially extendable. A starting date as early as December 1st, 2025 is possible. The position is based in Toulouse, with the possibility to travel to CERN as needed.

Contraintes et risques

Short trips in France and abroad are required.