A5107963318- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Radiation Detection and Scintillator Technologies
- Quantum Chromodynamics and Particle Interactions
- Neutrino Physics Research
- Nuclear Physics and Applications
- Distributed and Parallel Computing Systems
- Radiation Therapy and Dosimetry
- Gaussian Processes and Bayesian Inference
- Spacecraft and Cryogenic Technologies
- Superconducting Materials and Applications
- Medical Imaging Techniques and Applications
- Inorganic Fluorides and Related Compounds
- Age of Information Optimization
Agence Parisienne du Climat
2024
Centre National de la Recherche Scientifique
2023-2024
Université Paris Cité
2023-2024
Laboratoire AstroParticule et Cosmologie
2022-2024
Universidade de São Paulo
2024
Royal Holloway University of London
2024
Augustana University
2024
Fermi National Accelerator Laboratory
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2024
University of Pisa
2024
We report on the search for dark matter weakly interacting massive particles (WIMPs) in mass range below $10\text{ }\text{ }\mathrm{GeV}/{\mathrm{c}}^{2}$, from analysis of entire dataset acquired with a low-radioactivity argon target by DarkSide-50 experiment at Laboratori Nazionali del Gran Sasso. The new benefits more accurate calibration detector response, improved background model, and better determination systematic uncertainties, allowing us to accurately model rate spectra down...
We present a search for dark matter particles with sub-GeV/c^{2} masses whose interactions have final state electrons using the DarkSide-50 experiment's (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing ionization signals, we exclude new parameter space matter-electron cross section σ[over ¯]_{e}, axioelectric coupling constant g_{Ae}, and photon kinetic mixing κ. also set first direct-detection constraints on angle |U_{e4}|^{2} keV/c^{2} sterile neutrinos.
Dark matter elastic scattering off nuclei can result in the excitation and ionization of recoiling atom through so-called Migdal effect. The energy deposition from electron adds to deposited by nuclear system allows for detection interactions sub-GeV/c^{2} mass dark matter. We present new constraints using dual-phase liquid argon time projection chamber DarkSide-50 experiment with an exposure (12 306±184) kg d. analysis is based on signal alone significantly enhances sensitivity DarkSide-50,...
Abstract The stability of a dark matter detector on the timescale few years is key requirement due to large exposure needed achieve competitive sensitivity. It especially crucial enable potentially detect any annual event rate modulation, an expected signature. In this work, we present performance history DarkSide-50 dual-phase argon time projection chamber over its almost three-year low-radioactivity run. particular, focus electroluminescence signal that enables sensitivity sub-keV energy...
Abstract We present a novel approach for the search of dark matter in DarkSide-50 experiment, relying on Bayesian Networks. This method incorporates detector response model into likelihood function, explicitly maintaining connection with quantity interest. No assumptions about linearity problem or shape probability distribution functions are required, and there is no need to morph signal background spectra as function nuisance parameters. By expressing terms Networks, we have developed an...
The activation of materials due to exposure cosmic rays may become an important background source for experiments investigating rare event phenomena. DarkSide-20k, currently under construction at the Laboratori Nazionali del Gran Sasso, is a direct detection experiment galactic dark matter particles, using two-phase liquid-argon Time Projection Chamber (TPC) filled with 49.7 tonnes (active mass) Underground Argon (UAr) depleted in 39Ar. Despite outstanding capability discriminating...
The search for supersymmetric particles is one of the major goals in next high luminosity phase Large Hadron Collider. Supersymmmetric top (stop) searches play a very important role this respect, but unprecedented collision rate that will be attained at poses new challenges separation between any signal and Standard Model background. While classical multivariate techniques might insufficient environment, massive parallelism provided by quantum computing may yield an efficient solution...