E. Fragiacomo
A5114377531- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Nuclear physics research studies
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- CCD and CMOS Imaging Sensors
- Statistical Methods and Bayesian Inference
- Pulsars and Gravitational Waves Research
- Radiation Detection and Scintillator Technologies
- Computational Physics and Python Applications
- Atomic and Subatomic Physics Research
- Advanced Data Storage Technologies
- Stochastic processes and statistical mechanics
- Superconducting Materials and Applications
- Black Holes and Theoretical Physics
- Distributed and Parallel Computing Systems
- advanced mathematical theories
- Demographic Trends and Gender Preferences
- Pediatric Urology and Nephrology Studies
- Magnetic confinement fusion research
- Photocathodes and Microchannel Plates
- Atomic and Molecular Physics
University of Trieste
2006-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2016-2025
A. Alikhanyan National Laboratory
2015-2024
University of Bergen
2015-2024
University of Houston
2023-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
2010-2023
Technical University of Munich
2021
Budker Institute of Nuclear Physics
2020
Aligarh Muslim University
2014-2020
Center for Research and Advanced Studies of the National Polytechnic Institute
2020
The ${}^{2}\mathrm{H}{,}^{12}\mathrm{C}{,}^{40}\mathrm{Ca}{,}^{208}\mathrm{Pb}({\ensuremath{\pi}}^{+},{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}})$ reactions have been studied at ${T}_{{\ensuremath{\pi}}^{+}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}282.7\phantom{\rule{0ex}{0ex}}\mathrm{MeV}$, and the ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ invariant mass distributions...
In-medium pion-pion correlations were studied via their effect on experimental observables measured for the ${\ensuremath{\pi}}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ reaction in nuclei $(A:{ }^{12}{\mathrm{C},\mathrm{ }}^{40}\mathrm{Ca}$, and ${}^{208}\mathrm{Pb})$ deuterium, from which it is inferred nucleon $(N:$ n $p)$. The measurements performed at TRIUMF using a positive-pion flux with bombarding energy of 283 MeV....
Differential cross sections for π−p and π+p elastic scattering were measured at five energies between 19.9 43.3 MeV. The use of the CHAOS magnetic spectrometer TRIUMF, supplemented by a range telescope muon background suppression, provided simultaneous coverage large part full angular range, thus allowing very precise relative section measurements. absolute normalisation was determined with typical accuracy 5%. This verified in measurement proton scattering. show some deviations from phase...
A novel approach for designing the next generation of vertex detectors foresees to employ wafer-scale sensors that can be bent truly cylindrical geometries after thinning them thicknesses 20-40$\mu$m. To solidify this concept, feasibility operating MAPS was demonstrated using 1.5$\times$3cm ALPIDE chips. Already with their thickness 50$\mu$m, they successfully radii about 2cm without any signs mechanical or electrical damage. During a subsequent characterisation 5.4GeV electron beam, it...
An analysis of new data for the reaction ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}\stackrel{\ensuremath{\rightarrow}}{p}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{+}n$ at incident energies between 223 and 284 MeV is presented. ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ cross sections are obtained via Goebel-Chew-Low techniques by extrapolation to pion pole using pseudoperipheral approximation. A consistency check present experimental...
The process of pion-induced pion production in nuclei has been studied with the $A({\ensuremath{\pi}}^{+},{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})$ and $A({\ensuremath{\pi}}^{+},{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}p)$ reactions for four ${}^{2}$H, ${}^{12}$C, ${}^{40}$Ca, ${}^{208}$Pb at an incident energy ${T}_{{\ensuremath{\pi}}^{+}}=283$ MeV. ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$...
The pion induced production reactions ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}\stackrel{\ensuremath{\rightarrow}}{p}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}n$ were studied at projectile incident energies of 223, 243, 264, 284, and 305 MeV, using a cryogenic liquid hydrogen target. Canadian High Acceptance Orbit Spectrometer was used to detect the two outgoing pions in coincidence. experimental results are presented form single differential cross...
Analyzing powers for $\ensuremath{\pi}p$ elastic scattering were measured using the CHAOS spectrometer at energies spanning \ensuremath{\Delta}(1232) resonance. This work presents ${\ensuremath{\pi}}^{+}$ data pion kinetic 117, 130, 139, 155, 169, 180, 193, 218, 241, and 267 MeV ${\ensuremath{\pi}}^{\ensuremath{-}}$ 87, 241 MeV, covering an angular range of $50\ifmmode^\circ\else\textdegree\fi{}<~{\ensuremath{\theta}}_{\mathrm{c}.\mathrm{m}.}<~180\ifmmode^\circ\else\textdegree\fi{}$...
Analyzing powers for $\ensuremath{\pi}p$ elastic scattering at bombarding energies below the $\ensuremath{\Delta}(1232)$ resonance were measured TRIUMF using CHAOS spectrometer and a polarized spin target. This work presents ${\ensuremath{\pi}}^{\ensuremath{-}}$ data six incident of 57, 67, 87, 98, 117, 139 MeV, single ${\ensuremath{\pi}}^{+}$ set MeV. The higher energy measurements cover an angular range...
The Crystal Ball ($CB$) collaboration at $BNL$ has recently presented results regarding a study of the $π^- A \to π^0π^0 A^\prime$ reaction on $H, D, C, Al$ and $Cu$, using nearly 4$π$ detector. Similar results, but for $π^+ π^+π^{\pm} $^{2}H$, $^{12}C$, $^{40}Ca$, $^{208}Pb$, have been published earlier by $CHAOS$ $TRIUMF$. In this Brief Report comparison two measurements is made, which shows that $CB$ data share relevant common features. particular, increase in strength as function seen...
The two outermost layers of the ALICE inner tracking system are composed about 1800 AC-coupled double-sided silicon microstrip detectors. More than thousand sensors have been delivered by three manufacturers, which amount to largest production this type devices undertaken so far. Sensor testing and quality control has performed at INFN Trieste. By careful optimization procedure, a complete static characterization large number possible without making use fully automatic test stations,...
The semiexclusive reaction ${}^{4}\mathrm{He}({\ensuremath{\pi}}^{+},{\ensuremath{\pi}}^{\ensuremath{-}}pp)pp$ has been studied at pion kinetic energies of 105 MeV and 115 MeV. Signatures from the production hypothetical $\ensuremath{\pi}\mathrm{NN}$ resonance ${d}^{\ensuremath{'}}$ have searched for in invariant mass ${M}_{\ensuremath{\pi}\mathrm{pp}}$ spectra. No hint a dominant production, as anticipated double charge exchange excitation functions on nuclei, found. data are satisfactorily...
Hadronic resonance production has been studied with the ALICE detector in different collision systems at LHC energies. The aim is to disentangle initial-state effects from genuine medium-induced effects, which may occur hot and dense hadronic matter after chemical freeze-out Pb–Pb collisions. In these proceedings, transversemomentum spectra of ϕ(1020) K*(892)0 ratio their yield long-lived particles are discussed this light.