P. Gianotti
A5107343371- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Nuclear physics research studies
- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Radiation Detection and Scintillator Technologies
- Muon and positron interactions and applications
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Advanced Chemical Physics Studies
- Particle Accelerators and Free-Electron Lasers
- Nuclear reactor physics and engineering
- Quantum, superfluid, helium dynamics
- Superconducting Materials and Applications
- Advanced NMR Techniques and Applications
- Particle accelerators and beam dynamics
- Neutrino Physics Research
- Scientific Research and Discoveries
- Cold Atom Physics and Bose-Einstein Condensates
- Psychotherapy Techniques and Applications
- Mass Spectrometry Techniques and Applications
- Inorganic Fluorides and Related Compounds
- Radioactive Decay and Measurement Techniques
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2016-2025
University of Ferrara
2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2024
A. Alikhanyan National Laboratory
2014-2023
Financiadora de Estudos e Projetos
2023
National Council for Scientific and Technological Development
2023
National Nuclear Research Center
2023
Bellarmine University
2018-2022
Technical University of Munich
2021
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
1995-2020
We have searched for a deeply bound kaonic state by using the FINUDA spectrometer installed at e+e− collider DAΦNE. Almost monochromatic K−’s produced through decay of ϕ(1020) mesons are used to observe K− absorption reactions stopped on very thin nuclear targets. Taking this unique advantage, we succeeded detect kaon-bound K−pp its two-body into Λ hyperon and proton. The binding energy width determined from invariant-mass distribution as 115+6−5(stat)+3−4(syst) MeV 67+14−11(stat)+2−3(syst)...
For the first time at Beam Test Facility (BTF) of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>DA</a:mi><a:mi mathvariant="normal">Φ</a:mi><a:mi>NE</a:mi></a:mrow></a:math> accelerator complex Laboratori Nazionali di Frascati INFN, 450 MeV positrons have been deflected with high efficiency, using planar channeling process in a bent silicon crystal. The deflection angle obtained is beyond 1 mrad. This interesting result finds several applications for...
The goal of the DIRAC experiment at CERN (PS212) is to measure $\pi^+\pi^-$ atom lifetime with 10% precision. Such a measurement would yield precision 5% on value $S$-wave $\pi\pi$ scattering lengths combination $|a_0-a_2|$. Based part collected data we present first result lifetime, $\tau=[2.91 ^{+0.49}_{-0.62}]\times 10^{-15}$ s, and discuss major systematic errors. This corresponds $|a_0-a_2|=0.264 ^{+0.033}_{-0.020} m_{\pi}^{-1}$.
Evidence for the neutron-rich hypernucleus $_{\ensuremath{\Lambda}}^{6}\mathrm{H}$ is presented from FINUDA experiment at $\mathrm{DA}\ensuremath{\Phi}\mathrm{NE}$, Frascati, studying $({\ensuremath{\pi}}^{+},{\ensuremath{\pi}}^{\ensuremath{-}})$ pairs in coincidence ${K}_{\mathrm{stop}}^{\ensuremath{-}}+^{6}\mathrm{Li}\ensuremath{\rightarrow}_{\ensuremath{\Lambda}}^{6}\mathrm{H}+{\ensuremath{\pi}}^{+}$ production reaction followed by...
The Crilin calorimeter is a semi-homogeneous calorimetric system that uses Lead Fluoride (PbF 2 ) crystals with UV-extended Silicon Photomultipliers (SiPMs). Proposed for the Muon Collider, it requires high granularity to distinguish signal particles and address substructures jet identification. Anticipating substantial occupancy due beam-induced backgrounds, simulations indicate photon flux an average energy of 1.7 MeV approximately 4.5 MHz/cm fluence rate. Prioritizing time-of-arrival...
We report stopping powers of hydrogen and helium for antiprotons kinetic energies ranging from about 0.5 keV to 1.1 MeV. The Barkas effect, i.e., a difference in the power protons same energy material, shows up clearly either gases. Moreover, below \ensuremath{\approx}0.5 there is indirect evidence an increase antiproton power. This "nuclear" losses quasimolecular interactions, fair agreement with theoretical predictions.
The DIRAC experiment at CERN has achieved a sizeable production of $\pi^+\pi^-$ atoms and significantly improved the precision on its lifetime determination. From sample 21227 atomic pairs, 4% measurement S-wave $\pi\pi$ scattering length difference $|a_0-a_2| = (.0.2533^{+0.0080}_{-0.0078}|_\mathrm{stat}.{}^{+0.0078}_{-0.0073}|_\mathrm{syst})M_{\pi^+}^{-1}$ been attained, providing an important test Chiral Perturbation Theory.
The FINUDA experiment performed a systematic study of the charged mesonic weak decay channel $p$-shell $Λ$-hypernuclei. Negatively pion spectra from were measured with magnetic analysis for first time ${^{7}_ΛLi}$, ${^{9}_ΛBe}$, ${^{11}_ΛB}$ and ${^{15}_ΛN}$. shape $π^{-}$ was interpreted through comparison distorted wave calculations that take into account structure both hypernucleus daughter nucleus. Branching ratios $Γ_{π^{-}}/Γ_{tot}$ derived converted to rates $Γ_{π^{-}}$ by means known...
Abstract During 2022 data taking (Run III) PADME searched for a resonant production and visible decay of the X17 particle into e + - . A precise knowledge within 1% uncertainty number positrons was required observation. To that purpose, an array 2 × 6 Timepix3 (total 512 1536 pixels) hybrid pixel detectors operated in data-streaming mode with ToA resolution 1.56 ns every employed. Two methods acquisition were developed. frame-based method, integrating hits each individual predefined period...
The simultaneous measurement of the spatial coordinates and times p\ifmmode\bar\else\textasciimacron\fi{}s annihilating at rest in a ${\mathrm{H}}_{2}$ target very low density \ensuremath{\rho} (\ensuremath{\rho}/${\mathrm{\ensuremath{\rho}}}_{0}$${10}^{\mathrm{\ensuremath{-}}2}$, ${\mathrm{\ensuremath{\rho}}}_{0}$ being STP density) gives possibility evaluating behavior p\ifmmode\bar\else\textasciimacron\fi{} stopping power energies (below 120 keV). It is different from that protons (the...
The decay of Λ-hypernuclei without π emission, known as Non-Mesonic Weak Decay (NMWD), gives an effective tool to investigate ΔS=1 four-baryon interactions. It was theoretically suggested that the two-nucleon induced mechanism could play a substantial role in reproducing observed NMWD rates and nucleon spectra, but at present no direct evidence such has been obtained. FINUDA experiment, exploiting possibility detect both charged neutral particles coming from hypernucleus decay, allowed us...