A5035750680- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Nuclear Physics and Applications
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Radiation Detection and Scintillator Technologies
- Particle accelerators and beam dynamics
- Diverse academic and cultural studies
- Historical and Environmental Studies
- Dark Matter and Cosmic Phenomena
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Molecular Physics
- Ionosphere and magnetosphere dynamics
- Medical Imaging Techniques and Applications
- Quantum, superfluid, helium dynamics
- Radiation Therapy and Dosimetry
- High-pressure geophysics and materials
- Geophysics and Gravity Measurements
- Scientific Research and Discoveries
- Gamma-ray bursts and supernovae
- Urban Planning and Valuation
Istituto Superiore di Sanità
2015-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2015-2024
Mayo Clinic in Florida
2023
Istanbul Eye Hospital
2023
Technical University of Munich
2020
Istituto Nazionale di Fisica Nucleare
1991-2019
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
1991-2019
Sapienza University of Rome
1986-2019
Enrico Fermi Center for Study and Research
2019
Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications
2019
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...
New results on quasi-free η photoproduction the neutron and proton bound in a deuteron target are presented. The γn→ηn cross section reveals bump-like structure which is not seen proton. This may signal existence of relatively narrow (M∼1.68GeV, Γ⩽30MeV) baryon state.
We present new $\ensuremath{\Sigma}$ beam asymmetry data for $\ensuremath{\eta}$ meson photoproduction on the proton, using a novel tagged, laser backscattered, linearly polarized photon up to 1.1 GeV. The show large, positive asymmetries, at all incident energies. In addition ${S}_{11}(1535)$ and ${D}_{13}(1520)$ resonances necessary reproduce cross sections, ${P}_{13}(1720)$ ${D}_{15}(1675)$ ``four stars'' contribute observable, but cannot strong forward asymmetries measured energies...
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.
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 analysis of the γp→ηπ0p reaction has been performed using data from GRAAL experiment. total and differential cross sections beam asymmetry have obtained threshold up to 1.5 GeV energy. two resonances S11(1535) Δ(1700) are expected be excited in intermediate states this reaction. results used test predictions based on assumption that both dynamically generated meson-baryon interaction provided by chiral Lagrangians. term involving excitation, followed decay into ηΔ(1232), is found...
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 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.
This paper presents the experimental results on Terapia Oncologica con Protoni-Intensity Modulated Proton Linear Accelerator (TOP-IMPLART) beam that is currently accelerated up to 35 MeV, with a final target of 150 MeV. The TOP-IMPLART project, funded by Innovation Department Regione Lazio (Italy), led Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) in collaboration Institute Health Oncological Hospital Regina Elena-IFO. accelerator, under...