A5079467368- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Particle physics theoretical and experimental studies
- Crystallography and Radiation Phenomena
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Nuclear materials and radiation effects
- Neutrino Physics Research
- Nuclear Physics and Applications
- Quantum Chromodynamics and Particle Interactions
- Muon and positron interactions and applications
- High-Energy Particle Collisions Research
- CCD and CMOS Imaging Sensors
- Magnetic properties of thin films
- Computational Physics and Python Applications
- Inorganic Chemistry and Materials
- X-ray Spectroscopy and Fluorescence Analysis
- Youth Substance Use and School Attendance
- Sleep and related disorders
- Plasma Diagnostics and Applications
- Scientific Research and Discoveries
- Physics of Superconductivity and Magnetism
- Advanced NMR Techniques and Applications
- Superconducting Materials and Applications
University of Ferrara
2018-2024
Istituto Nazionale di Fisica Nucleare
2023-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
2016-2023
Cardiff University
2015
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 bstract measurement of the $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>K</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>→</mml:mo> <mml:mi>π</mml:mi> <mml:mi>ν</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> decay by NA62 experiment at CERN SPS is presented, using data collected in 2021 and 2022. This dataset was recorded, after modifications to beamline detectors, a higher instantaneous beam...
Based on the notion that local dark-matter field of axions or axionlike particles (ALPs) in our Galaxy induces oscillating couplings to spins nucleons and nuclei (via electric dipole moment latter and/or paramagnetic axion-wind effect), we establish feasibility a new method search for ALPs storage rings. previous work allows us maintain in-plane polarization stored deuteron beam few hundred seconds, perform first proof-of-principle experiment at Cooler Synchrotron (COSY) scan momenta near...
This paper presents the successful application of a phase-lock feedback system to maintain resonance condition radio frequency (rf) spin rotator (specifically, an rf Wien filter) with respect 120 kHz precession in Cooler Synchrotron (COSY) storage ring. Real-time monitoring and filter signal allows relative phase between two be stabilized at arbitrary setpoint. The compensates for deviations by adjusting and/or as needed. With this method, variation demand standard deviation...
Although inorganic scintillators are widely used in the design of electromagnetic calorimeters for high-energy physics and astrophysics, their crystalline nature and, hence, lattice orientation generally neglected detector design. However, general, features field experienced by particles impinging on a crystal at small angle with respect to axis affect interaction mechanisms. In particular, case electrons/photons (10 GeV) or higher high- Z an ≲ 1 mrad, so-called strong regime is attained:...
We observed a substantial increase of the scintillation light output lead tungstate (PbWO$_4$) at small incidence angle with respect to two main lattice axes. This reflects acceleration electromagnetic shower development that occurs in crystalline Strong Field. measured generated by $120$-$\mathrm{GeV}$ electrons and $10$-$100$-$\mathrm{GeV}$ $\gamma$ rays on thick samples. result deepens knowledge mechanisms crystal scintillators could pave way innovative accelerator- space-borne calorimeters.
Progress in high-energy physics has been closely tied to the development of high-performance electromagnetic calorimeters. Recent experiments have demonstrated possibility significantly accelerate showers inside scintillating crystals typically used homogeneous calorimeters based on when incident beam is aligned with a crystallographic axis within few mrad. In particular, reduction radiation length measured ultrarelativistic electron and photon beams were high- Z scintillator crystal along...
For the upgrade of inner tracker BESIII spectrometer, planned for 2018, a lightweight based on an innovative Cylindrical Gas Electron Multiplier (CGEM) detector is now under development. The analogue readout CGEM enables use charge centroid algorithm to improve spatial resolution better than 130 um while loosening pitch strip 650 um, which allows reduce total number channels about 10 000. are by 160 dedicated integrated 64-channel front-end ASICs, providing time and measurement featuring...
The Jülich Electric Dipole moment Investigation (JEDI) collaboration aims at a direct measurement of the Moment (EDM) protons and deuterons using storage ring. is based on polarization measurement. In order to reach highest accuracy, one has know exact trajectory through magnets, especially quadrupoles, avoid influence magnetic fields vector. this paper, development beam-based alignment technique described that was developed implemented COoler SYnchrotron (COSY) Forschungszentrum Jülich....
A cylindrical GEM detector is under development, to serve as an upgraded inner tracker at the BESIII spectrometer. It will consist of three layers cylindrically-shaped triple GEMs surrounding interaction point. The experiment taking data e+e- collider BEPCII in Beijing (China) and be installed 2018. Tests on performances strong magnetic field have been run by means muon beam available H4 line SPS (CERN) with both planar chambers first prototype. Efficiencies resolutions evaluated using...
A new detector exploiting the technology of Gas Electron Multipliers is under construction to replace innermost drift chamber BESIII experiment, since its efficiency compromised owing high luminosity Beijing Positron Collider. The inner tracker with a cylindrical shape will deploy several features. analogue readout and two complementary algorithms reconstruct position allow achieving spatial resolution 130 µm in 1 T magnetic field. For this purpose, TIGER, custom 64-channel ASIC, providing...
A calorimetric polarimeter based on inorganic LYSO scintillators is described. It has been designed for use in a storage ring to search electric dipole moments (EDM) of charged particles such as the proton and deuteron. Its development first was Cooler Synchrotron (COSY) at Forschungszentrum Jülich with 0.97 GeV/c polarized deuterons, particle energy suitable an EDM search. The requires high efficiency, large analyzing power, stable operating characteristics. With typical beam momenta about...
Gas detector development is one of the pillars research in fundamental physics. Since several years, a new concept detectors, called Micro Pattern Detector (MPGD), allowed to overcome problems related other types commonly used like drift chamber and micro strips reducing rate discharges providing better radiation tolerance. Among most MPGDs are Electron Multipliers (GEMs). Invented by Sauli 1997, nowadays GEMs have become an important reality for particle detectors high energy Commonly...
A new inner tracker based on a cylindrical gas electron-multiplier detector is under development to replace the current drift chamber of BES III spectrometer. The experiment carried out at BEPC II e[Formula: see text]e[Formula: text] collider in Beijing center-of-mass energies tau-charm region with design luminosity 1.0 [Formula: 10[Formula: cm[Formula: text]s[Formula: text]. consists three layers triple GEM surrounding interaction point, covering 93% solid angle. To fulfill physics...
The Beijing Electron Spectrometer III (BESIII) is a multipurpose detector that collects data provided by the collision in Positron Collider II (BEPCII), hosted at Institute of High Energy Physics Beijing. Since beginning its operation, BESIII has collected world largest sample J/{\psi} and {\psi}(2s). Due to increase luminosity up nominal value 10^33 cm-2 s-1 aging effect, MDC decreases efficiency first layers 35% with respect 2014. take 2022 chance continue 2027, Italian collaboration...
Gas detectors are one of the pillars research in fundamental physics. Since several years, a new concept detectors, called Micro Pattern Detectors (MPGD), allows to overcome many problems other types commonly used like drift chambers and microstrip reducing discharge rate increasing radiation tolerance. Among these, most is Electron Multiplier (GEM). GEMs have become an important reality for physics detectors. Commonly deployed as fast timing triggers, due their response, high capability...
Performance of triple GEM prototypes has been evaluated by means a muon beam at the H4 line SPS test area CERN. The data from two planar have reconstructed and analyzed offline with clusterization methods: center gravity charge distribution micro Time Projection Chamber (μTPC). prototype performance evaluation, performed analysis TB, showed that two-dimensional cluster efficiency is above 95% for wide range operational settings. Concerning spatial resolution, centroid reconstruction performs...