Susanna Bertelli
A5022712236- Particle physics theoretical and experimental studies
- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Muon and positron interactions and applications
- Radiation Detection and Scintillator Technologies
- Atomic and Molecular Physics
- Science Education and Pedagogy
- Particle Detector Development and Performance
- Crystallography and Radiation Phenomena
- Dark Matter and Cosmic Phenomena
- Experimental Learning in Engineering
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- Experimental and Theoretical Physics Studies
- Radio, Podcasts, and Digital Media
- Nuclear Physics and Applications
- Particle accelerators and beam dynamics
- Educational Methods and Outcomes
- High-Energy Particle Collisions Research
- Technology Assessment and Management
- Cold Fusion and Nuclear Reactions
- Educational and Social Studies
- Superconductivity in MgB2 and Alloys
- Nuclear materials and radiation effects
- Inorganic Chemistry and Materials
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2012-2024
University of Ferrara
2009-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
2012-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2024
Istituto Nazionale di Fisica Nucleare
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
2022
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
2022
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro
2022
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
2022
Istituto Nazionale di Fisica Nucleare, Sezione di Padova
2022
The high-luminosity requirement in future lepton colliders imposes a need for high-intensity positron source. In the conventional scheme, beams are obtained by conversion of bremsstrahlung photons into electron-positron pairs through interaction between high-energy electron beam and high-Z amorphous target. One method to enhance number produced positrons is boosting incident power. However, maximum heat load thermo-mechanical stresses bearable target severely limit power electrons. To...
A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, tune-defined as number of precessions per turn-is given by ν(s)=γG (γ Lorentz factor, G gyromagnetic anomaly). At 970 MeV/c, deuteron spins coherently precess at a frequency ≈120 kHz in Cooler Synchrotron COSY. The deduced from up-down asymmetry deuteron-carbon scattering. time interval 2.6 s, was determined with precision order 10^{-8}, 1×10^{-10} for continuous 100 s accelerator cycle. This...
We observe a deuteron beam polarization lifetime near 1000 s in the horizontal plane of magnetic storage ring (COSY). This long spin coherence time is maintained through combination bunching, electron cooling, sextupole field corrections, and suppression collective effects current limits. record required for search an intrinsic electric dipole moment on at statistical sensitivity level approaching 10^{-29} e cm.
This paper describes a time-marking system that enables measurement of the in-plane (horizontal) polarization 0.97-GeV/c deuteron beam circulating in Cooler Synchrotron (COSY) at Forschungszentrum J\"ulich. The clock time each polarimeter event is used to unfold 120-kHz spin precession and assign events bins according direction horizontal polarization. After accumulation for one or more seconds, down-up scattering asymmetry can be calculated matched sinusoidal function whose magnitude...
Abstract During 2022 data taking (Run III) PADME searched for a resonant production and visible decay of the X17 particle into e + - . A precise knowledge within 1% uncertainty number positrons was required observation. To that purpose, an array 2 × 6 Timepix3 (total 512 1536 pixels) hybrid pixel detectors operated in data-streaming mode with ToA resolution 1.56 ns every employed. Two methods acquisition were developed. frame-based method, integrating hits each individual predefined period...
The paper describes the commissioning of experimental equipment and machine studies required for first spin-filtering experiment with protons at a beam kinetic energy 49.3 MeV in COSY. implementation low-$\ensuremath{\beta}$ insertion made it possible to achieve lifetimes ${\ensuremath{\tau}}_{b}=8000\text{ }\text{ }\mathrm{s}$ presence dense polarized hydrogen storage-cell target areal density...
The PAX Collaboration has successfully performed a spin-filtering experiment with protons at the COSY-ring. measurement allowed determination of spin-dependent polarizing cross section, that compares well theoretical prediction from nucleon–nucleon potential. test confirms can be adopted as method to polarize stored beam and present interpretation mechanism in terms proton–proton interaction is correct. outcome utmost importance view possible application antiprotons.
A low-energy spin-physics program is being developed at the COSY storage ring. To support planned experimental activities, several tools for polarized beams and targets have been developed. The paper presents physics case readiness of setup its realization.
We propose to use an internal polarized hydrogen storage cell gas target in the AD ring determine for first time two total spin-dependent pbar-p cross sections sigma_1 and sigma_2 at antiproton beam energies range from 50 450 MeV. The data obtained are of interest by themselves general theory interactions since they will provide a experimental constraint spin-spin dependence nucleon-antinucleon potential energy interest. In addition, measurements polarization buildup stored antiprotons...
The conceptual design of a magnetic system for an experiment to measure the transverse spin effects in semi-inclusive Deep Inelastic Scattering (SIDIS) at 11 GeV with transversely polarized target using CLAS12 detector Jefferson Lab is presented. A proposal has been submitted study azimuthal asymmetries SIDIS 11-GeV electron beam from upgraded CEBAF facility and equipped target. main focus will be measurement single double reaction ep↑ → ehX, where e electron, p↑ proton, h meson (e.g., pion...
ScienzaPerTutti, literally ScienceForAll, is the web portal dedicated to Physics education and popularization of science curated by INFN Italian National Institute for Nuclear Physics’ researchers. The contents are mainly addressed High School students teachers designed engage audience with main topics modern research in particle nuclear physics, theoretical astroparticle physics. missions promote public awareness science, raise interest towards importance discoveries along applications...
INFN Kids is a science education project of the Italian National Institute for Nuclear Physics addressed to young people Primary and Middle schools age. The initiative aims at raising children’s curiosity towards with focus on Physics, inspiring them by illustrating different research fields that pursuing, development in technologies along applications everyday life presenting who animate science. It gathers technicians researchers thirteen units labs design realization multimedia products,...
In recent years, increasingly more universities and cutting-edge research institutes propose outreach activities addressed to school students. For some of these initiatives, participants become part the setting, interact with researchers, raise awareness numerous applications in everyday life, conduct experimental firsthand, a general effort synergy between scientists physics education communities is starting visible. An example this approach provided by 2024 edition INSPYRE, International...
Abstract The PADME experiment at LNF-INFN employs positron-on-target-annihilation to search for new light particles. Crucial parts of the are charged particle detectors, composed plastic scintillator bars with transmitted by wavelength shifting fibers silicon photomultipliers (SiPMs). location detector — close a turbomolecular pump, inside vacuum tank, and exposed 0.5 T magnetic field has driven design custom modular SiPM front-end power supply electronics. system its performance, confirming...
This paper presents a detailed characterization of the positron beam delivered by Beam Test Facility at Laboratori Nazionali Frascati to PADME experiment during Run III, which took place from October December 2022. It showcases methodology used measure main parameters such as position in space, absolute momentum scale, energy spread, and its intensity through combination data analysis Monte Carlo simulations. The results achieved include an precision within $\sim$ 1-2 MeV$/c$, relative...
A bstract This paper presents a detailed characterization of the positron beam delivered by Beam Test Facility at Laboratori Nazionali Frascati to PADME experiment during Run III, which took place from October December 2022. It showcases methodology used measure main parameters such as position in space, absolute momentum scale, energy spread, and its intensity through combination data analysis Monte Carlo simulations. The results achieved include an precision within ~1–2 MeV /c , relative...