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Portail > Offres > Offre UMR5814-CLABOM-050 - Chercheur "Développement et l'analyse des données d'un prototype de détecteur d'argon liquide pour la future expérience d'oscillation de neutrinos à longue distance DUNE" (H/F)

Post-doc "Development and data analysis of a large-scale Liquid Argon detector prototype for the DUNE long-baseline neutrino oscillation experiment" (M/F)

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : mercredi 10 mars 2021

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General information

Reference : UMR5814-CLABOM-050
Workplace : ANNECY LE VIEUX
Date of publication : Wednesday, February 17, 2021
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 1 May 2021
Proportion of work : Full time
Remuneration : starting to 2648 € monthly gross, according to work experience (maximum of 2 years of research experience after the PhD)
Desired level of education : PhD
Experience required : Indifferent

Missions

In the framework of the French Excellence Initiative ''ENIGMASS'' labex, the CNRS LAPP (Laboratoire d'Annecy de Physique des Particules) institute is opening a 2-year postdoctoral position in the area of experimental neutrino physics starting from May 2021.

The position concerns the development and data analysis of a large-scale Liquid Argon detector prototype for the DUNE long-baseline neutrino oscillation experiment.
As part of a research pole, the LAPP neutrino group is participating to the worldwide effort of developing neutrino detectors for this future long baseline neutrino project aiming at investigating the existence of CP violation in the leptonic sector and the neutrino mass hierarchy, two properties still to be discovered. These studies require an intense accelerator-based neutrino beam coupled with a very large and massive underground detector.

Large size liquid argon Time Projection Chambers (LArTPC) are well-suited detectors for such goals in addition to be performant for additional physics searches like nucleon decay and astroparticle studies. The DUNE/LBNF project foresees a long baseline neutrino beam from Fermilab to an underground mine 1300 km away hosting a 4x10-kt Liquid Argon (LAr) detectors. In order to achieve such a large-scale experiment, an intensive R&D program is taking place since several years.

The LAPP group has developed a strong participation through DUNE to this program and contributed to the construction, operation and data analysis of ProtoDUNE-DP, one of the DUNE LAr TPC prototypes at the CERN Neutrino platform. Profiting from the experience and knowledge acquired in this context, the next step foreseen is to develop and validate an original large TPC concept, called 'Vertical Drift', derived from both dual-phase and single-phase approaches in order to establish its viability for the second module of the DUNE far detector. In this novel approach, the charge collection is based on perforated PCBs located at the bottom and the top of the liquid argon volume. A full-scale model of the 'vertical drift' charge collection and readout device is planned to be built and tested in a dedicated setup at CERN before 2022.

The new postdoctoral position is expected to play a main role in this project through the LAPP neutrino group activities. The group, composed of four permanent staff physicists and one PhD student, is contributing to several aspects of the program, including the mechanical structure construction, the simulation and reconstruction software developments for the physics and performance analyses of the LAr TPC prototype and the preparation of the DUNE data.

Activities

- The successful candidate will join the LAPP neutrino group strongly involved in the DUNE far detector design and optimisation based on the vertical drift technology as well as in the prototyping phases including the construction of a demonstrator at CERN in collaboration with several international institutes.
- The successful candidate will have a leading role in this LAr detector development activity at LAPP and the analysis preparation.
- Since Annecy is close to CERN, the candidate will be involved in most of the aspects of the project. She/he will contribute to the preparation of the experiment and participate to the construction, commissioning and running of the detector demonstrator onsite.
- She/he will be involved in the simulation, reconstruction and study of the performance of the detector with special emphasis on the charge detection and comparisons with other LAr TPC designs under development.

Skills

- Applicants must have a PhD degree in Physics, an experience with particle detectors, Monte-Carlo simulations and data analysis.
- The candidates must have a maximum of 2 years of research experience after the PhD.
- Applicants must submit a cover letter explaining their interest in the position and a detailed curriculum vitae (containing a description of their research experience with a list of publications highlighting their personal contributions).
- Have referrals to send at least 2 letters of recommendation directly to : lapp_administration_rh_secretariat@lapp.in2p3.fr

Work Context

LAPP is a combined CNRS and Université de Savoie Mont-Blanc unit. About 150 people are working at LAPP: researchers, professors, engineers and support staff, students and visiting scientists. The laboratory is involved in several large international collaborations working on accelerators (ATLAS and LHCb on the LHC at CERN, DUNE at Fermilab and South Dakota), neutrino experiments (SuperNEMO at the Modane Underground Laboratory and STEREO at ILL) and astroparticle experiments (Virgo, H.E.S.S., CTA and LSST). Involved in many R&D and construction programs for large research infrastructures, the laboratory's skills cover a large scope of domains involving innovative technologies in micro-electronics, complex mechanical structure design and optimization, grid computing and scientific software developments. The location of LAPP, 50 km from CERN, and the presence of the theory laboratory LAPTh in the same premises, make the LAPP campus a very attractive research place for scientists contributing to particle and astroparticle physics. LAPP hosts the MUST mid-range data storage and computing centre widely open to distributed computing infrastructure supporting research and academic projects.

Constraints and risks

Some short trips have to be planned in France and abroad.

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