A5107246586- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Neutrino Physics Research
- Nuclear physics research studies
- Nuclear Physics and Applications
- Black Holes and Theoretical Physics
- Astronomical and nuclear sciences
- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Distributed and Parallel Computing Systems
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Molecular Physics
- Medical Imaging Techniques and Applications
- Nuclear reactor physics and engineering
- Superconducting Materials and Applications
- Gamma-ray bursts and supernovae
- Particle accelerators and beam dynamics
- advanced mathematical theories
Université Grenoble Alpes
2015-2024
Laboratoire de Physique Subatomique et de Cosmologie
2015-2024
Institut National de Physique Nucléaire et de Physique des Particules
2014-2023
Centre National de la Recherche Scientifique
2014-2023
Institut polytechnique de Grenoble
2018-2023
The University of Adelaide
2013-2021
Université Joseph Fourier
2007-2020
Mohamed I University
2020
University of Pavia
2019
European Organization for Nuclear Research
2011-2019
The multifragment emission of ``completely characterized'' events in the $^{40}\mathrm{Ca}$${+}^{40}$Ca system at 35 MeV/nucleon has been compared to predictions several models. observed is not agreement with models based on conventional statistical binary decay, but both a simultaneous multifragmentation model and sequential which expansion treated.
The double π0 photoproduction off the proton has been measured in beam energy range of 0.65–1.5 GeV. total and differential cross sections Σ asymmetry were extracted. section for first time third resonance region nucleon shows a prominent peak. interpretation these results by two independent theoretical models infers mostly selective excitation P11- D13-nucleon resonances.Received 17 January 2003DOI:https://doi.org/10.1103/PhysRevLett.90.222001©2003 American Physical Society
The possibility of anisotropies in the speed light relative to limiting electrons is considered. absence sidereal variations energy Compton-edge photons at European Synchrotron Radiation Facility's GRAAL facility constrains such representing first nonthreshold collision-kinematics study Lorentz violation. When interpreted within minimal standard-model extension, this result yields two-sided limit 1.6×10−14 95% confidence level on a combination parity-violating photon and electron...
The differential cross section for the reaction p(γ,ηp) has been measured from threshold to 1100 MeV photon laboratory energy. For first time, region of S11(1535) resonance is fully covered in a photoproduction experiment and will allow precise extraction its parameters at point. These high precision data together with already beam asymmetry provide stringent constraints on new couplings baryon resonances η meson.
The 4\ensuremath{\pi} multidetector AMPHORA has been used to measure yield distributions and energy spectra for products of the collisions in reactions $^{40}\mathrm{Ca}$ with at 35 MeV/nucleon. Events high multiplicity (\ensuremath{\ge}10) which \ensuremath{\ge}85% total entrance channel atomic number is detected have isolated found result from most violent lead excitation energies near 6 A large fraction these multifragment final states. detailed comparison experimental data results...
We present the first measurement of Σ beam asymmetry in η photoproduction on neutron photon energy range from threshold to 1.5 GeV. Data have been collected by using tagged and linearly polarized large solid angle apparatus GRAAL facility. Neutron data selected among events deuteron quasi-free kinematics approximation. Proton data, extracted same way, are within errors identical those previously obtained free protons at facility, except for a few points falling certain bins. This difference...
The $ \Sigma$ beam asymmetry in \eta^{\prime}$ photoproduction off the proton was measured at GrAAL polarised photon with incoming energies of 1.461 and 1.480 GeV. For both as a function meson production angle shows clear structure, more pronounced lowest one, change sign around 90^{\circ}$ . observed behaviour is compatible P-wave D-wave (or S-wave F-wave) interference, closer to threshold stronger. results are compared existing state-of-the-art calculations that fail account for data.
The increase of the particle flux at HL-LHC with instantaneous luminosities up to L=7.5 × 10 34 cm −2 s −1 will have a severe impact on ATLAS detector reconstruction and trigger performance. end-cap forward region where liquid Argon calorimeter has coarser granularity inner tracker poorer momentum resolution be particularly affected. A High Granularity Timing Detector installed in front calorimeters help charged-particle luminosity measurement. This low angle is introduced augment new...
The top quark and electroweak bosons (W Z) represent the most massive fundamental particles yet discovered, as such refer directly to Standard Model's greatest remaining mystery: mechanism by which all gained mass. This report summarizes work done within top-ew group of Tevatron-for-LHC workshop. It represents a collection both Tevatron results, LHC predictions. hope is that considering comparing machines, program can be improved aided knowledge from Tevatron, particle physics whole...
A previously unexploited experimental observable is used to explore emission times for intermediate mass fragments relative directly emitted ${}^{2}\mathrm{H}$ and ${}^{3}\mathrm{H}$ particles. Small-angle correlations are reported in central collisions $34A\phantom{\rule{0ex}{0ex}}\mathrm{MeV}$ ${}^{40}\mathrm{Ar}{+}^{\mathrm{nat}}\mathrm{Ag}$. High-velocity particles follow a direct scenario with mean lifetime...
The $\Sigma$ beam asymmetry in the photoproduction of negative pions from quasi-free neutrons a deuterium target was measured at Graal energy interval 700 - 1500 MeV and wide angular range, using polarized tagged photons. results are compared with recent partial wave analyses.
The multidetector AMPHORA was used to investigate the reaction of 35 MeV per nucleon $^{40}\mathrm{Ca}$ ions with a $^{\mathrm{nat}}\mathrm{Cu}$ target. For 150 000 events corresponding peripheral and midperipheral collisions, it possible reconstruct primary projectilelike fragments calculate event by center mass excitation energy. Comparison percolation simulation (charge moments, critical exponent) momentum ellipsoid analysis are presented commented. No evidence for change in...
The Sigma beam asymmetry for positive pion photoproduction on the proton has been measured over an angular range of 40-170 deg at photon energies from 0.8 to 1.5 GeV. resulting data set includes 237 accurate points, 136 these belonging almost unexplored domain above 1.05 Data such high precision provide severe constraints partial wave analyses. influence this experiment GW multipole analysis is demonstrated. Significant changes are found in multipoles connected S31(1620) and P13(1720)...