A5074307937- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Gamma-ray bursts and supernovae
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Radio Astronomy Observations and Technology
- Pulsars and Gravitational Waves Research
- Superconducting and THz Device Technology
- Nuclear Physics and Applications
- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Superconducting Materials and Applications
- Medical Imaging Techniques and Applications
- Cosmology and Gravitation Theories
- Distributed and Parallel Computing Systems
- Physics of Superconductivity and Magnetism
- Radioactive Decay and Measurement Techniques
Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre
2016-2025
Université Libre de Bruxelles
2022-2024
Beijing Normal University
2022-2024
China Institute of Atomic Energy
2024
Universidade Estadual de Londrina
2022-2024
China Academy of Space Technology
2024
Pontifical Catholic University of Rio de Janeiro
2022-2024
A. Alikhanyan National Laboratory
2022-2024
Korea Institute of Science & Technology Information
2023
Istituto Nazionale di Fisica Nucleare, Sezione di Padova
2023
We search for the rare decay <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>B</a:mi><a:mo>+</a:mo></a:msup><a:mo stretchy="false">→</a:mo><a:msup><a:mi>K</a:mi><a:mo>+</a:mo></a:msup><a:mi>ν</a:mi><a:mover accent="true"><a:mi>ν</a:mi><a:mo stretchy="false">¯</a:mo></a:mover></a:math> in a <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:mn>362</f:mn><f:mtext> </f:mtext><f:mtext>...
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
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.
The events recorded by ARGO-YBJ in more than five years of data collection have been analyzed to determine the diffuse gamma-ray emission Galactic plane at longitudes 25° < l 100° and latitudes . energy range covered this analysis, from ∼350 GeV ∼2 TeV, allows connection region explored Fermi with multi-TeV measurements carried out Milagro. Our analysis has focused on two selected regions plane, i.e., 40° 65° 85° (the Cygnus region), where Milagro observed an excess respect predictions...
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...
We present a search for the direct production of light pseudoscalar decaying into two photons with Belle II detector at SuperKEKB collider. process e^{+}e^{-}→γa, a→γγ in mass range 0.2<m_{a}<9.7 GeV/c^{2} using data corresponding to an integrated luminosity (445±3) pb^{-1}. Light pseudoscalars interacting predominantly standard model gauge bosons (so-called axionlike particles or ALPs) are frequently postulated extensions model. find no evidence ALPs and set 95% confidence level upper...
A bstract We present the calibration strategy for 20 kton liquid scintillator central detector of Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional program, in combination with novel dual calorimetry technique exploiting two independent photosensors readout systems, we demonstrate that JUNO can achieve better than 1% energy linearity 3% effective resolution, required by neutrino mass ordering determination.
JUNO is a multi-purpose neutrino observatory under construction in the south of China. This publication presents new sensitivity estimates for measurement $\Delta m^2_{31}$, m^2_{21}$, $\sin^2 \theta_{12}$, and \theta_{13}$ oscillation parameters using reactor antineutrinos, which one primary physics goals experiment. The sensitivities are obtained best knowledge available to date on location overburden experimental site, nuclear reactors surrounding area beyond, detector response...
We present a measurement of the differential shapes exclusive $B\ensuremath{\rightarrow}{D}^{*}\ensuremath{\ell}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$ ($B={B}^{\ensuremath{-}},{\overline{B}}^{0}$ and $\ensuremath{\ell}=e$, $\ensuremath{\mu}$) decays with hadronic tag-side reconstruction for full $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ Belle dataset. extract Caprini-Lellouch-Neubert (CLN) Boyd-Grinstein-Lebed (BGL) form factor parameters use an external input absolute...
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 ARGO-YBJ detector is an extensive air shower array that has been used to monitor the northern $\gamma$-ray sky at energies above 0.3 TeV from 2007 November 2013 January. In this paper, we present results of a survey in declination band $-10^{\circ}$ $70^{\circ}$, using data recorded over past five years. With integrated sensitivity ranging 0.24 $\sim$1 Crab units depending on declination, six sources have detected with statistical significance greater than 5 standard deviations. Several...
Measuring the anisotropy of arrival direction distribution cosmic rays provides important information on propagation mechanisms and identification their sources. In fact, flux is thought to be dependent only due presence nearby ray sources or particular magnetic-field structures. Recently, observation unexpected excesses at TeV energy down an angular scale as narrow $\ensuremath{\sim}10\ifmmode^\circ\else\textdegree\fi{}$ raised possibility that problem origin Galactic may addressed by...
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...
The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from core Nuclear Power Plant. reactor antineutrino spectrum measured with sub-percent energy resolution, to provide reference for future neutrino experiments, and benchmark measurement test nuclear databases. spherical acrylic vessel containing 2.8 ton gadolinium-doped viewed by 10 m^2...
A search for the flavor-changing neutral-current decay B^{+}→K^{+}νν[over ¯] is performed at Belle II experiment SuperKEKB asymmetric energy electron-positron collider. The data sample corresponds to an integrated luminosity of 63 fb^{-1} collected ϒ(4S) resonance and a 9 60 MeV below resonance. Because measurable signature involves only single charged kaon, novel measurement approach used that exploits not properties decay, but also inclusive other B meson in ϒ(4S)→BB[over event, suppress...
Abstract The Jiangmen Underground Neutrino Observatory (JUNO) features a 20 kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's make it an excellent location for B solar neutrino measurements, such low-energy threshold, high energy resolution compared with water Cherenkov detectors, and much larger target mass previous detectors. In this paper, we present comprehensive assessment potential detecting neutrinos via the neutrino-electron elastic...
Main goal of the JUNO experiment is to determine neutrino mass ordering using a 20kt liquid-scintillator detector. Its key feature an excellent energy resolution at least 3 % 1 MeV, for which its instruments need meet certain quality and thus have be fully characterized. More than 20,000 20-inch PMTs been received assessed by after detailed testing program began in 2017 elapsed about four years. Based on this characterization set specific requirements, good all accepted could ascertained....
We measure the ratio of branching fractions for $Υ(4S)$ decays to $B^+B^-$ and $B^0\bar{B}{}^0$ using $B^+ \rightarrow J/ψ(\ell\ell) K^+$ $B^0 K^0$ samples, where $J/ψ(\ell\ell)$ stands $J/ψ\to \ell^+\ell^-$ ($\ell = e$ or $μ$), with $711$ fb$^{-1}$ data collected at resonance Belle detector. find decay rate $Υ(4S) B^+B^-$ over B^0\bar{B}{}^0$ be $1.065\pm0.012\pm 0.019 \pm 0.047$, which is most precise measurement date. The first second uncertainties are statistical systematic,...
Abstract The core-collapse supernova (CCSN) is considered one of the most energetic astrophysical events in universe. early and prompt detection neutrinos before (pre-SN) during (SN) burst presents a unique opportunity for multi-messenger observations CCSN events. In this study, we describe monitoring concept present sensitivity system to pre-SN SN at Jiangmen Underground Neutrino Observatory (JUNO), 20 kton liquid scintillator detector currently under construction South China. real-time...