G. Soum-Sidikov
A5081601642- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Nuclear Physics and Applications
- Neutrino Physics Research
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Mass Spectrometry Techniques and Applications
- Advanced Semiconductor Detectors and Materials
- Atomic and Molecular Physics
- Superconducting and THz Device Technology
- Spacecraft and Cryogenic Technologies
- Advanced Thermodynamic Systems and Engines
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
Université Paris-Saclay
2023-2025
Institut de Recherche sur les Lois Fondamentales de l'Univers
2023-2025
CEA Paris-Saclay
2023-2025
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2023-2025
Sapienza University of Rome
2024
Laboratoire Kastler Brossel
2023
Centre National de la Recherche Scientifique
2023
École Normale Supérieure - PSL
2023
Sorbonne Université
2023
Université Paris Sciences et Lettres
2023
Coherent elastic neutrino-nucleus scattering and low-mass dark matter detectors rely crucially on the understanding of their response to nuclear recoils. We report first observation a recoil peak at around 112 eV induced by neutron capture. The measurement was performed with CaWO_{4} cryogenic detector from NUCLEUS experiment exposed ^{252}Cf source placed in compact moderator. identify expected structure single-γ de-excitation ^{183}W 3σ its origin capture 6σ significance. This result...
Rare-event search experiments located on-surface, such as short-baseline reactor neutrino experiments, are often limited by muon-induced background events. Highly efficient muon vetos essential to reduce the detector and reach sensitivity goals. We demonstrate feasibility of deploying organic plastic scintillators at sub-Kelvin temperatures. For NUCLEUS experiment, we developed a cryogenic veto equipped with wavelength shifting fibers silicon photo multiplier operating inside dilution...
The emission of γ-rays after neutron capture in a cryogenic detector can generate monoenergetic nuclear recoils the sub-keV regime, which is direct interest for calibration dark matter and coherent elastic neutrino-nucleus scattering experiments. Here we show that accurate predictions spectra total energy deposition induced by captures require taking into account interplay between development time deexcitation γ-ray cascade target nucleus associated atomic collisions matter. We present...
The analysis of cryogenic detector data is known to be challenging for any experiment. main difficulty resides in the background rejection since they suffer from presence several different pulse shapes which need discriminated down very low signal-to-noise ratio. Background reduction particularly important NUCLEUS experiment whose aim produce ultra-low threshold ( around 20 eV) detectors measure coherent elastic neutrino-nucleus scattering at Chooz nuclear power plant. necessary due recoil...
We have made the first absolute, reference-free measurement of 1s2s 3 S1 $\rightarrow$ 1s 2 1 S0 relativistic magnetic dipole transition in He-like sulfur. The highly-charged S ions were provided by an electron-cyclotron resonance ion source, and x rays analysed with a high-precision double crystal spectrometer. A energy 2430.3685(97) eV was obtained, is compared to most advanced bound state quantum electrodynamics calculations, providing important test two-electron QED effects precision...
Any experiment aiming to measure rare events, like Coherent Elastic neutrino-Nucleus Scattering (CE ν NS) or hypothetical Dark Matter scattering, via nuclear recoils in cryogenic detectors relies crucially on a precise detector calibration at sub-keV energies. The Crab collaboration developed new technique based the capture of thermal neutrons inside target crystal. Together with Nucleus experiment, first measurements moderated 252 Cf neutron source and CaWO4 were taken. We observed for time...
The emission of $γ$-rays after a neutron capture in cryogenic detector can generate mono-energetic nuclear recoils the sub-keV regime, direct interest for calibration Dark Matter and Coherent Elastic Neutrino Nucleus Scattering experiments. Here we show that accurate predictions recoil spectra induced by captures require taking into account interplay between development time de-excitation $γ$-cascade target nucleus associated atomic collisions matter. We present detailed simulations coupling...