Light-by-light scattering is a quantum-mechanical phenomenon that is forbidden in the classical framework of electrodynamics. It was first anticipated over 70 years ago by Heisenberg and Euler. This process becomes achievable at the Large Hadron Collider due to the significant electromagnetic field intensities produced during the high-energy collisions of lead ions. Through the analysis of...
In this work, the grand unified theory (GUT) of SO(10) is analyzed in the context of Peccei-Quinn ($\mathrm{U}(1)_{\mathrm{PQ}}$) symmetry and family symmetries. The SO(10) framework is chosen because it's a good candidate that can offer a possible solution for reconciling the Standard Model (SM) interactions with many problems that are currently facing particle physics, including dark matter,...
The Tile Calorimeter (TileCal) is a sampling hadronic calorimeter covering the central region of the ATLAS experiment with steel as the absorber and plastic scintillators as the active medium. Scintillators are read out by wavelength shifting fibers coupled to photomultiplier tubes (PMTs), positioned at the outermost part of the modules. TileCal is crucial for detecting hadronic particles,...
The Tile Calorimeter is a central sampling hadronic calorimeter of the ATLAS experiment at LHC. The calorimeter is build of alternating layers of stainless steel and plastic scintillating tiles oriented perpendicular to the beam axis. The calorimeter plays a crucial role in the reconstruction of jets and hadronically decaying tau leptons, as well as of the missing transverse energy. Moreover,...
Compton backscatter imaging is a radiographic non-destructive testing technique that utilizes the Compton scattering effect to acquire internal structural information of objects. It has wide applications in fields such as medicine, pipeline inspection, corrosion detection, security, and aerospace. Compared to other non-destructive testing methods, such as ultrasonic testing and eddy current...
Giant Liquid Argon Time-Projection Chambers will be used for the far detectors of the next generation of neutrino oscillation experiment: Deep Underground Neutrino Experiment (DUNE). This work focuses on design of the Vertical Drift module (VD), where the chamber consists of two drift volumes separated by a central cathode allowing a nominal electric field of 500 V/cm in each of them. The...
The Tile Calorimeter (TileCal) is the central hadronic calorimeter of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. In 2026, the LHC will undergo a series of upgrades leading to the High-Luminosity LHC (HL-LHC), which will provide an instantaneous luminosity 5 to 7 times larger than the nominal LHC design value. The ATLAS Tile Calorimeter Phase-II Upgrade (2026-2030) will...
The Belle II experiment currently records data at the SuperKEKB e+e- collider, which holds the world luminosity record of 4.7x10^34 cm-2 s-1 and plans to push up to 6x10^35 cm-2 s-1. In such luminosity range for e+e- collisions, the inner detection layers should both cope with a hit rate dominated by beam-induced parasitic particles and provide minute tracking precision. A research and...
The LEGEND experiment is looking for the extremely rare neutrinoless double beta decay of $^{76}$Ge using isotopically-enriched high-purity germanium (HPGe) detectors. The detection of this process would imply that the neutrino is a Majorana particle and the total lepton number would not be conserved, which could be related to the cosmological asymmetry between matter and antimatter through...
The Laboratory for micro-irradiation, neutron metrology and dosimetry (i.e. the LMDN from IRSN/Cadarache/France, close to Marseille) has two radioactive reference sources (241Am-Be and 252Cf) whose neutron emission rates have been determined using the Manganese bath method at LNE-LNHB (CEA/Saclay/France, close to Paris). These sources are the French metrological reference for neutron fluence...
Within the framework of the HISTARS (HIE-ISOLDE Timing Array for Reaction Studies) project at the ISOLDE facility at CERN, plans are underway to implement a gamma-ray array dedicated to fast-timing measurements of lifetimes of excited nuclear states populated in Coulomb excitation and transfer reactions.
Advanced scintillator materials such as cerium-doped lanthanum bromide and cerium bromide...
Data from virtual experiments are becoming a valuable asset for research infrastructures: to develop and optimise current and future instruments, to train in the usage of the instrument control system, to study quantifying and reducing instrumental effects on acquired data. Furthermore large sets of simulated data are also a necessary ingredient for the development of surrogate models...
