A5101932676- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Nuclear Physics and Applications
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- CCD and CMOS Imaging Sensors
- Quantum Information and Cryptography
- Black Holes and Theoretical Physics
- Superconducting Materials and Applications
- Radiation Therapy and Dosimetry
- Radiation Effects in Electronics
- Neutrino Physics Research
- Plasma Diagnostics and Applications
- Magnetic confinement fusion research
- Silicon Carbide Semiconductor Technologies
- Muon and positron interactions and applications
- Particle accelerators and beam dynamics
- Superconducting and THz Device Technology
- Distributed and Parallel Computing Systems
- Cosmology and Gravitation Theories
- Astronomical Observations and Instrumentation
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2016-2025
University of Ferrara
2023
Institute of High Energy Physics
2023
Chinese Academy of Sciences
2023
Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
2022-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
2022
Istituto Nazionale di Fisica Nucleare
2003-2019
Sapienza University of Rome
2015-2016
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2002-2016
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
2012-2015
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
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.
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...
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 =...
The cross section of the process $e^+e^-\to \pi^+D^0D^{*-}$ for center-of-mass energies from 4.05 to 4.60~GeV is measured precisely using data samples collected with BESIII detector operating at BEPCII storage ring. Two enhancements are clearly visible in around 4.23 and 4.40~GeV. Using several models describe dressed yields stable parameters first enhancement, which has a mass $4228.6 \pm 4.1 6.3 \un{MeV}/c^2$ width $77.0 6.8 \un{MeV}$, where uncertainties statistical second ones...
We perform for the first time an amplitude analysis of decay D+→KS0π+η and report observation D+→KS0a0(980)+ using 2.93 fb−1 e+e− collision data taken at a center-of-mass energy 3.773 GeV with BESIII detector. As only W-annihilation-free among D to a0(980) pseudoscalar, is ideal in extracting contributions W-emission amplitudes involving study final-state interactions. The absolute branching fraction measured be (1.27±0.04stat±0.03syst)%. fractions intermediate processes a0(980)+→π+η...
We present measurements of the Born cross sections for processes e^{+}e^{-}→ωχ_{c1} and ωχ_{c2} at center-of-mass energies sqrt[s] from 4.308 to 4.951 GeV. The are performed with data samples corresponding an integrated luminosity 11.0 fb^{-1} collected BESIII detector operating Beijing Electron Positron Collider storage ring. Assuming e^{+}e^{-}→ωχ_{c2} signals come a single resonance, mass width determined be M=(4413.6±9.0±0.8) MeV/c^{2} Γ=(110.5±15.0±2.9) MeV, respectively, which is...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mn>7.9</a:mn><a:mrow><a:mi mathvariant="normal">f</a:mi><a:msup><a:mi mathvariant="normal">b</a:mi><a:mrow><a:mo>−</a:mo><a:mn>1</a:mn></a:mrow></a:msup></a:mrow></a:math> of <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:msup><e:mi>e</e:mi><e:mo>+</e:mo></e:msup><e:msup><e:mi>e</e:mi><e:mo>−</e:mo></e:msup></e:math> collision data collected at <g:math...
Part of the upgrade KLOE detector at DAΦNE Φ-factory consists insertion a tracking device around interaction region, composed four layers with radii from 130 mm to 205 and an active length 700 mm. Each layer was realized as cylindrical triple-GEM (CGEM) kapton-based detector, solution that allows us keep total material budget below 2% X0, utmost importance limit multiple scattering low-momentum tracks KLOE-2, minimize dead spaces. The peculiar readout pattern XV strips provides spatial...
The $\mu$-RWELL is a single-amplification stage resistive Micro-Pattern Gaseous Detector (MPGD). detector amplification element realized with single copper-clad polyimide foil micro-patterned blind hole (well) matrix and embedded in the readout PCB through thin Diamond-Like-Carbon (DLC) sputtered film. introduction of layer, suppressing transition from streamer to spark, allows achieve large gains ($\geq$10$^4$) stage, while partially reducing capability stand high particle fluxes. simplest...
We searched for evidence of a Higgsstrahlung process in secluded sector, leading to final state with dark photon U and Higgs boson h', the KLOE detector at DAFNE. investigated case h' lighter than U, decaying into muon pair producing missing energy signature. found no set upper limits its parameters range 2m_mu<m_U<1000 MeV, m_h'<m_U.
An amplitude analysis of the ${K}_{S}{K}_{S}$ system produced in radiative $J/\ensuremath{\psi}$ decays is performed using $(1310.6\ifmmode\pm\else\textpm\fi{}7.0)\ifmmode\times\else\texttimes\fi{}{10}^{6}\text{ }\text{ }J/\ensuremath{\psi}$ collected by BESIII detector. Two approaches are presented. A mass-dependent parametrizing invariant mass spectrum as a sum Breit-Wigner line shapes. Additionally, mass-independent to extract piecewise function that describes dynamics while making...
Quantum Sensing is a rapidly expanding research field that finds one of its applications in Fundamental Physics, as the search for Dark Matter. Devices based on superconducting qubits have already been successfully applied detecting few-GHz single photons via Non-Demolition measurement (QND). This technique allows us to perform repeatable measurements, bringing remarkable sensitivity improvements and dark count rate suppression experiments high-precision microwave photon detection, such...
The μ-RWELL is a compact spark-protected single amplification stage Micro-Pattern-Gaseous-Detector (MPGD).The detector realized with polyimide structure, micro-patterned dense matrix of blind-holes, integrated into the readout structure.The anode formed by thin Diamond Like Carbon (DLC) resistive layer separated an insulating glue from strips.The introduction strongly suppressing transition streamer to spark gives possibility achieve large gains (> 10 4 ), without significantly affecting...
An innovative Cylindrical Gas Electron Multiplier (CGEM) detector is under construction for the upgrade of inner tracker BESIII experiment. A novel system has been worked out readout CGEM detector, including a new ASIC, dubbed TIGER -Torino Integrated GEM Electronics Readout, designed amplification and digitization output signals. The data by are collected processed first FPGA-based module, Read Out Card, in charge configuration control front-end ASICs. second named Data Concentrator, builds...
A bstract With data samples collected with the BESIII detector at seven energy points $$ \sqrt{s} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 3 . 68 − 71 GeV, corresponding to an integrated luminosity of 333 pb 1 , we present a study Λ transverse polarization in e + → \Lambda \overline{\Lambda} <mml:mi>Λ</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> reaction. The significance by combining is found be 2.6 σ...