A5105617773- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Nuclear physics research studies
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Radiation Therapy and Dosimetry
- Nuclear Physics and Applications
- High-pressure geophysics and materials
- Radioactivity and Radon Measurements
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Radioactive Decay and Measurement Techniques
- Neutrino Physics Research
- Particle Accelerators and Free-Electron Lasers
- Radioactive contamination and transfer
- Quantum Mechanics and Applications
- History and advancements in chemistry
- Particle accelerators and beam dynamics
- Atomic and Molecular Physics
- Advanced NMR Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Quantum, superfluid, helium dynamics
National Agency for New Technologies, Energy and Sustainable Economic Development
2022-2024
University of Rome Tor Vergata
2014-2023
Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
2014-2023
Istituto Nazionale di Fisica Nucleare
2015-2023
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud
2022
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2014-2021
University of York
2020-2021
Tel Aviv University
2019
Polytechnic University of Turin
2018
Canisius College
2018
The $\bar{K}N$ system at threshold is a sensitive testing ground for low energy QCD, especially the explicit chiral symmetry breaking. Therefore, we have measured $K$-series x rays of kaonic hydrogen atoms DA$\Phi$NE electron-positron collider Laboratori Nazionali di Frascati, and determined most precise values strong-interaction energy-level shift width $1s$ atomic state. As x-ray detectors, used large-area silicon drift detectors having excellent timing resolution, which were developed...
A model where a Dirac fermion is coupled to background dilaton field considered study s-wave scattering of by back ground black hole. It found that an uncomfortable situation towards information loss scenario arises when one loop correction gets involved during bosonization.
Passive radiation shielding is a mandatory element in the design of an integrated solution to mitigate effects during long deep space voyages for human exploration. Understanding and exploiting characteristics materials suitable flights is, therefore, primary importance. We present here results first space-test on Kevlar Polyethylene capabilities including direct measurements background baseline (no shield). Measurements are performed on-board International Space Station (Columbus modulus)...
A determination of the spin and parity Λ(1405) is presented using photoproduction data from CLAS detector at Jefferson Lab. The reaction γ+p→K++Λ(1405) analyzed in decay channel Λ(1405)→Σ++π−, where distribution to Σ+π− variation Σ+ polarization with respect direction determines parity. produced, energy range 2.55<W<2.85 GeV for 0.6<cosθc.m.K+<0.9, P=0.45±0.02(stat)±0.07(syst). analysis shows that decays are S wave, polarized such has spin-parity JP=12−, as expected by most theories.Received...
In a successful engineering run, the Heavy Photon Search Collaboration demonstrates that its upcoming heavy photon search experiment will be able to probe so far unexplored parameter regions in for dark photons.
Interlaboratory exercises are a good tool to compare the response of different systems same quantity and identify possible inconsistencies between them. One main goals EMPIR 19ENV01 traceRadon project is harmonize radon flux measurements based on methodologies. In framework Project, two intercomparison campaigns were carried out in October 2021 at high low source areas. Four institutions participated field with their own systems. Every system was specific monitor (diffusion or pump mode) an...
The kaonic (3)He and (4)He X-rays emitted in the [Formula: see text] transitions were measured SIDDHARTA experiment. widths of 2p states determined to be text], respectively. Both results are consistent with theoretical predictions. width is much smaller than value by experiments performed 70's 80's, while was for first time.
We have measured the moment ALUsinϕ corresponding to polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering. is a twist-3 quantity providing information about quark-gluon correlations. Data were taken with CLAS Spectrometer at Jefferson Lab using 5.498 GeV longitudinally beam and an unpolarized liquid hydrogen target. All three pion channels (π+, π0 π−) simultaneously over large range of kinematics within virtuality Q2≈ 1.0–4.5 GeV2. The observable was better than...
We study fermion-boson transitions.Our approach is based on the 3 × subequations of Dirac and Duffin-Kemmer-Petiau equations, which link these equations.We demonstrate that free equation can be invertibly converted to spin-0 in presence a neutrino field.We also show special external fields, upon assuming again existence (Weyl) spinor, transformed reversibly equation.We argue such boson-fermions transitions are consistent with main channel pion decay.
As manned spaceflights beyond low Earth orbit are in the agenda of Space Agencies, concerns related to space radiation exposure crew still without conclusive solutions. The risk long-term detrimental health effects needs be kept below acceptable limits, and emergency countermeasures must planned avoid short-term consequences high particle fluxes during hardly predictable solar events. habitat shielding cannot ultimate solution: increasing complexity future missions will require astronauts...
Abstract In deep space, personnel and equipment are exposed to the space radiation environment in form of energetic particles, specifically galactic cosmic rays sporadic solar particle events. Radiation fields resulting from these particles modified by shielding, but most measurements have been made with detectors that were unshielded or very lightly shielded. contrast, on International Space Station (ISS) is more complicated, time‐dependent modification incident flux geomagnetic field...
MeV-GeV dark matter (DM) is theoretically well motivated but remarkably unexplored. This proposal presents the DM discovery potential for a $\sim$1 m$^3$ segmented CsI(Tl) scintillator detector placed downstream of Hall A beam-dump at Jefferson Lab, receiving up to 10$^{22}$ electrons-on-target (EOT) in 285 days. experiment (Beam-Dump eXperiment or BDX) would be sensitive elastic DM-electron and inelastic scattering level 10 counts per year, reaching limit neutrino irreducible background....
New results on the single-differential and fully-integrated cross sections for process $\gamma_{v} p \rightarrow p' \pi^{+} \pi^{-}$ are presented. The experimental data were collected with CLAS detector at Jefferson Laboratory. Measurements carried out in kinematic region of reaction invariant mass $W$ from 1.3 to 1.825 GeV photon virtuality $Q^2$ 0.4 1.0 GeV$^2$. obtained narrow $Q^{2}$ bins (0.05 GeV$^{2}$) smallest statistical uncertainties achieved double-pion electroproduction...
The Pauli exclusion principle (PEP), consequence of the spin-statistics connection, is one basic principles modern physics. Being at very basis our understanding matter, as many other fundamental it spurs a lively debate on its possible limits, deeply rooted in foundations Quantum Field Theory. Therefore, extremely important to test limits validity. Quon theory provides suitable mathematical framework violation PEP, where parameter q translates into probability violating PEP. VIP (VIolation...
MeV-GeV dark matter (DM) is theoretically well motivated but remarkably unexplored. This Letter of Intent presents the DM discovery potential for a 1 m$^3$ segmented plastic scintillator detector placed downstream beam-dump at one high intensity JLab experimental Halls, receiving up to 10$^{22}$ electrons-on-target (EOT) in one-year period. experiment (Beam-Dump eXperiment or BDX) sensitive DM-nucleon elastic scattering level thousand counts per year, with very low threshold recoil energies...
Gamma emitting radionuclides naturally present in the Earth’s crust and radon exhaled by soil atmosphere with its short-lived progeny are two of main contributors to environmental gamma dose rate that typically characterizes an outdoor measurement site. The work aims investigate variations dose-rate time series originated different natural phenomena, such as weather seismic events, which can modify concentration air. data analyzed here were acquired over a five-year period using...
The solar system exploration by humans requires to successfully deal with the radiation exposition issue.The scientific aspect of this issue is twofold: knowing environment astronauts are going face and linking exposure health risks.Here we focus on first issue.It generally agreed that final tool describe in a space habitat will be model featuring needed amount details perform meaningful risk assessment.The should also take into account shield changes due movement materials inside habitat,...
LIDAL (Light Ion Detector for ALTEA system) is a compact detector designed to upgrade (Anomalous Long Term Effects on Astronauts) silicon apparatus, in order study detail the low-Z part of ions spectrum inside International Space Station (ISS) and enhance Particle Identification (PID) capability system. The new trigger perform Time-Of-Flight measurements. It based plastic scintillators fast timing applications read by Photo-Multiplier-Tubes (PMTs). A custom Front End Electronics (FEE) has...