A5103253110- Particle physics theoretical and experimental studies
- Radiation Therapy and Dosimetry
- Quantum Chromodynamics and Particle Interactions
- Radiation Detection and Scintillator Technologies
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Advanced Radiotherapy Techniques
- Astrophysics and Cosmic Phenomena
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Radiation Effects in Electronics
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- Boron Compounds in Chemistry
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- CCD and CMOS Imaging Sensors
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Nuclear reactor physics and engineering
- Graphite, nuclear technology, radiation studies
- Distributed and Parallel Computing Systems
- Noncommutative and Quantum Gravity Theories
Istituto Nazionale di Fisica Nucleare
2013-2025
Sapienza University of Rome
2016-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2015-2024
Enrico Fermi Center for Study and Research
2014-2021
National University of Science and Technology
2021
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2010-2021
University of Catania
2020
University of Turin
1992-2019
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
1992-2019
Istituto Nazionale di Fisica Nucleare, Sezione di Catania
2013-2018
Particle therapy exploits the energy deposition pattern of hadron beams. The narrow Bragg Peak at end range is a major advantage but uncertainties can cause severe damage and require online verification to maximise effectiveness in clinics. In-beam Positron Emission Tomography (PET) non-invasive, promising in-vivo technique, which consists measurement β+ activity induced by beam-tissue interactions during treatment, presents highest correlation measured distribution with deposited dose,...
We present a measurement of the flux neutrino-induced upgoing muons (<Eν>∼ 100 GeV) using MACRO detector. The ratio number observed to expected events integrated over all zenith angles is 0.74 ±0.036 (stat) ±0.046 (systematic) ±0.13 (theoretical). distribution for −1.0≤cosθ≤−0.1 does not fit well with no oscillation expectation, giving maximum probability χ2 0.1%. acceptance detector has been extensively studied downgoing muons, independent analyses and Monte Carlo simulations. other...
We have measured the cross section of radiative process e+e- -> pi+pi-gamma with KLOE detector at Frascati phi-factory DAPHNE, from events taken a CM energy W=1 GeV. Initial state radiation allows us to obtain for pi+pi-, pion form factor |F_pi|^2 and dipion contribution muon magnetic moment anomaly, Delta a_mu^{pipi} = (478.5+-2.0_{stat}+-5.0_{syst}+-4.5_{th}) x 10^{-10} in range 0.1 < M_{pipi}^2 0.85 GeV^2, where theoretical error includes SU(3) ChPT estimate uncertainty on photon final...
The existence of a light dark force mediator has been tested with the KLOE detector at DAPHNE. This particle, called U, is searched for using decay chain phi-->etaU, eta-->pi+pi-pi0, U-->e+e-. No evidence found in 1.5 fb-1 data. resulting exclusion plot covers mass range 5
Ion beam therapy is a rapidly growing technique for tumor radiation therapy. Ions allow high dose deposition in the region, while sparing surrounding healthy tissue. For this reason, highest possible accuracy calculation of and its spatial distribution required treatment planning. On one hand, commonly used planning software solutions adopt simplified beam-body interaction model by remapping pre-calculated distributions into 3D water-equivalent representation patient morphology. other Monte...
The existence of a new force beyond the Standard Model is compelling because it could explain several striking astrophysical observations which fail standard interpretations. We searched for light vector mediator this dark force, $\mathrm{U}$ boson, with KLOE detector at DA$\Phi$NE $\mathrm{e}^{+}\mathrm{e}^{-}$ collider. Using an integrated luminosity 1.54 fb$^{-1}$, we studied process $\mathrm{e}^{+}\mathrm{e}^{-} \to \mathrm{U}\gamma$, $\mathrm{U} \mathrm{e}^{+}\mathrm{e}^{-}$, using...
We have searched for a light vector boson U, the possible carrier of "dark force", with KLOE detector at DAΦNE e+e− collider, motivated by astrophysical evidence presence dark matter in Universe. Using collisions collected an integrated luminosity 239.3 pb−1, we look dimuon mass peak reaction e+e−→μ+μ−γ, corresponding to decay U→μ+μ−. find no U signal. set 90% CL upper limit mixing parameter squared between photon and 1.6×10−5 8.6×10−7 region 520<mU<980 MeV.
In the field of radiotherapy, Monte Carlo (MC) particle transport calculations are recognized for their superior accuracy in predicting dose and fluence distributions patient geometries compared to analytical algorithms which generally used treatment planning due shorter execution times. this work, a newly developed MC-based (MCTP) tool proton therapy is proposed support studies research applications. It allows single-field simultaneous multiple-field optimization realistic scenarios based...
The recent interest in a light gauge boson the framework of an extra U(1) symmetry motivates searches mass range below 1 GeV. We present search for such particle, dark photon, e+e−→Uγ, U→π+π− based on 28 million e+e−→π+π−γ events collected at DAΦNE by KLOE experiment. π+ π− production initial-state radiation compensates loss sensitivity previous U→e+e−, μ+μ− due to small branching ratios ρ–ω resonance region. found no evidence signal and set limit 90% CL mixing strength between photon ε2, U...
The angular distribution of upward-going muons produced by atmospheric neutrinos in the rock below MACRO detector show anomalies good agreement with two flavor neutrino-mu ==> neutrino-tau oscillations maximum mixing and Delta m**2 around 0.0024 eV**2. Exploiting dependence magnitude matter effect on oscillation channel, using a set 809 observed MACRO, we that neutrino-sterile is disfavored 99% C.L. respect to neutrino-tau.
The vertical underground muon intensity has been measured in the slant depth range 3200–7000 hg cm−2 (standard rock) with completed lower part of MACRO detector at Gran Sasso laboratory, using a large sample data. These observations are used to compute surface flux and primary ''all-nucleon'' spectrum. An analysis systematic uncertainties introduced by interaction models atmosphere propagation muons is presented. A comparison our results published data also presented.Received 3 April...
Neutral kaon pairs produced in phi decays anti-symmetric entangled state can be exploited to search for violation of CPT symmetry and Lorentz invariance. We present an analysis the CP-violating process phi->K_S K_L->pi+pi-pi+pi- based on 1.7 fb-1 data collected by KLOE experiment at Frascati phi-factory DAFNE. The are used perform a measurement CPT-violating parameters Delta_amu neutral kaons contest Standard Model Extension framework. measured reference frame fixed stars are: Delta_ao =...
A bstract The three precision measurements of the cross section σ ( e + − → π γ(γ)) using initial state radiation by KLOE collaboration provide an important input for prediction hadronic contribution to anomalous magnetic moment muon. These are correlated both statistical and systematic uncertainties and, therefore, simultaneous use these requires covariance matrices that fully describe correlations. We present construction them determine a combined measurement γ(γ)). find, from this...
We report the measurement of K− absorption processes in Σ0p final state and first exclusive two nucleon (2NA) with KLOE detector. The 2NA process without further interactions is found to be 9% sum all other contributing processes, including on three more nucleons or followed by residual nucleons. also determine possible contribution ppK− bound state. yield ppK−/Kstop− (0.044±0.009stat−0.005+0.004syst)⋅10−2 but its statistical significance based an F-test only 1σ.
Using 5.33 × 106 single muons collected in 1.46 104 live hours by MACRO during the period 1991–1994, we have searched for a correlation between variations underground muon rate, Nμ, and seasonal temperature atmosphere. These correlations are found to be present with high statistical significance. Analysis of relatively complete December 1992–December 1994 subset data yields value coefficient, αT = (TNμ)(∂Nμ∂T) 0.83±0.13. total set gives consistent results. We compared this result hypothesis...