N. d’Ascenzo
A5024083803- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Atomic and Subatomic Physics Research
- Neutrino Physics Research
- Advanced Optical Sensing Technologies
- CCD and CMOS Imaging Sensors
- Aquatic and Environmental Studies
- Black Holes and Theoretical Physics
- Radiation Therapy and Dosimetry
- Nuclear Physics and Applications
- Advanced X-ray and CT Imaging
- Radiomics and Machine Learning in Medical Imaging
- Particle Accelerators and Free-Electron Lasers
- Material Science and Thermodynamics
- Integrated Circuits and Semiconductor Failure Analysis
- Superconducting Materials and Applications
- Differential Equations and Numerical Methods
- Cell Image Analysis Techniques
University of Science and Technology of China
2022-2025
Istituto Neurologico Mediterraneo
2018-2025
Huazhong University of Science and Technology
2014-2024
Fermi National Accelerator Laboratory
2012-2022
Wuhan National Laboratory for Optoelectronics
2016-2020
Deutsches Elektronen-Synchrotron DESY
2014-2018
Sorbonne Université
2010-2017
Laboratoire de Physique Nucléaire et de Hautes Énergies
2010-2017
Institut National de Physique Nucléaire et de Physique des Particules
2010-2017
Centre National de la Recherche Scientifique
2010-2017
The mass of the W boson, a mediator weak force between elementary particles, is tightly constrained by symmetries standard model particle physics. Higgs boson was last missing component model. After observation measurement provides stringent test We measure mass, MW, using data corresponding to 8.8 inverse femtobarns integrated luminosity collected in proton-antiproton collisions at 1.96 tera-electron volt center-of-mass energy with CDF II detector Fermilab Tevatron collider. A sample...
We present new measurements of the inclusive forward-backward ttbar production asymmetry, AFB, and its dependence on several properties system. The are performed with full Tevatron data set recorded CDF II detector during ppbar collisions at sqrt(s) = 1.96 TeV, corresponding to an integrated luminosity 9.4 fb^(-1). measure asymmetry using rapidity difference Delta-y=y_(t)-y_(tbar). Parton-level results derived, yielding 0.164+/-0.047 (stat + syst). observe a linear AFB top-quark pair mass...
An analog hadron calorimeter (AHCAL) prototype of 5.3 nuclear interaction lengths thickness has been constructed by members the CALICE Collaboration. The AHCAL consists a 38-layer sandwich structure steel plates and highly-segmented scintillator tiles that are read out wavelength-shifting fibers coupled to SiPMs. signal is amplified shaped with custom-designed ASIC. A calibration/monitoring system based on LED light was developed monitor SiPM gain measure full response curve in order correct...
We have measured the $W$-boson mass ${M}_{W}$ using data corresponding to $2.2\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of integrated luminosity collected in $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\mathrm{TeV}$ with CDF II detector Fermilab Tevatron collider. Samples consisting 470 126 $W\ensuremath{\rightarrow}e\ensuremath{\nu}$ candidates and 624 708 $W\ensuremath{\rightarrow}\ensuremath{\mu}\ensuremath{\nu}$ yield measurement ${M}_{W}=80\text{...
The observation of the $Y(4140)$ structure in $B^\pm\rightarrow J/\psi\,\phi K^\pm$ decays produced $\bar{p} p $ collisions at $\sqrt{s}=1.96~\TeV$ is reported with a statistical significance greater than 5 standard deviations. A fit to $J/\psi\,\phi$ mass spectrum performed assuming presence Breit-Wigner resonance. yields signal $19^{+6}_{-5}$ resonance events, and width $4143.4^{+2.9}_{-3.0}(\mathrm{stat})\pm0.6(\mathrm{syst})~\MeVcc$...
We report a measurement of the bottom-strange meson mixing phase β(s) using time evolution B(s)(0)→J/ψ(→μ(+)μ(-))φ(→K(+)K(-)) decays in which quark-flavor content is identified at production. This uses full data set proton-antiproton collisions √s=1.96 TeV collected by Collider Detector experiment Fermilab Tevatron, corresponding to 9.6 fb(-1) integrated luminosity. confidence regions two-dimensional space and B(s)(0) decay-width difference ΔΓ(s) measure...
We report on a measurement of $CP$-violating asymmetries (${A}_{CP}$) in the Cabibbo-suppressed ${D}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ and ${D}^{0}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}$ decays reconstructed data sample corresponding to $5.9\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ integrated luminosity collected by upgraded Collider Detector at Fermilab. use strong decay...
We report a measurement of the difference (ΔA(CP)) between time-integrated CP-violating asymmetries in D(0)→K(+)K(-) and D(0)→π(+)π(-) decays reconstructed full data set proton-antiproton collisions collected by Collider Detector at Fermilab, corresponding to 9.7 fb(-1) integrated luminosity. The strong decay D(*+)→D(0)π(+) is used identify charm meson production as D(0) or D[over ¯](0). measure ΔA(CP)=[-0.62±0.21(stat)±0.10(syst)]%, which differs from zero 2.7 Gaussian standard deviations....
We present the results of a search for dark matter production in monojet signature. analyze sample Tevatron $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$ corresponding to an integrated luminosity $6.7\text{ }\mathrm{f}{\mathrm{b}}^{\ensuremath{-}1}$ recorded by CDF II detector. In events with large missing transverse energy and one energetic jet, we find good agreement between standard model prediction observed data. set 90% confidence level upper limits on rate....
A new type of silicon device has been realized that many properties comparable to, or better than, a conventional PMT (Photomultiplier Tube). This paper presents the first results using these photodetectors in place readout scintillators for possible PET (Positron Emission Tomography) applications. device, Silicon Photomultiplier (SiPM), is effectively an avalanche photodiode operated Geiger mode. In Geiger-mode detectors, very large current signal produced regardless size input, giving just...
Using the full CDF Run II data sample, we report evidence for a new resonance, which refer to as $B(5970)$, found simultaneously in ${B}^{0}{\ensuremath{\pi}}^{+}$ and ${B}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ mass distributions with significance of 4.4 standard deviations. We further first study resonances consistent orbitally excited ${B}^{+}$ mesons an updated measurement properties ${B}^{0}$ ${B}_{s}^{0}$ mesons. measure masses widths all states, well relative production rates...
The transverse momentum cross section of ${e}^{+}{e}^{\ensuremath{-}}$ pairs in the $Z$-boson mass region $66--116\text{ }\text{ }\mathrm{GeV}/{c}^{2}$ is precisely measured using Run II data corresponding to $2.1\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ integrated luminosity recorded by Collider Detector at Fermilab. compared with two quantum chromodynamic calculations. One a fixed-order perturbative calculation $\mathcal{O}({\ensuremath{\alpha}}_{s}^{2})$, and other combines predictions...
We present a precision measurement of the top-quark mass using full sample Tevatron $\sqrt{s}=1.96$ TeV proton-antiproton collisions collected by CDF II detector, corresponding to an integrated luminosity 8.7 $fb^{-1}$. Using $t\bar{t}$ candidate events decaying into lepton+jets channel, we obtain distributions masses and invariant two jets from $W$ boson decays data. then compare these templates derived signal background samples extract energy scale calorimeter with {\it in situ}...
The angular distributions of muons from Υ(1S,2S,3S) → μ+ μ- decays are measured using data pp collisions at sqrt[s] = 1.96 TeV corresponding to an integrated luminosity 6.7 fb(-1) and collected with the CDF II detector Fermilab Tevatron. This analysis is first report full as functions transverse momentum p(T) for Υ mesons in both Collins-Soper s-channel helicity frames. also measurement spin alignment Υ(3S) mesons. Within kinematic range rapidity |y|<0.6 up 40 GeV/c, found be nearly isotropic.
We report final measurements of direct CP-violating asymmetries in charmless decays neutral bottom hadrons to pairs charged with the upgraded Collider Detector at Fermilab Tevatron. Using complete √s=1.96 TeV proton-antiproton collisions data set, corresponding 9.3 fb⁻¹ integrated luminosity, we measure A(Λ(b)⁰→pπ⁻)=+0.06±0.07(stat)±0.03(syst) and A(Λ(b)⁰→pK⁻)=-0.10±0.08(stat)±0.04(syst), compatible no asymmetry. In addition B(s)⁰→K⁻π⁺ B⁰→K⁺π⁻ be A(B(s)⁰→K⁻π⁺)=+0.22±0.07(stat)±0.02(syst)...
We measure the inclusive forward--backward asymmetry of charged-lepton pseudorapidities from top-quark pairs produced in proton--antiproton collisions and decaying to final states that contain two charged leptons (electrons or muons). The data are collected with Collider Detector at Fermilab correspond an integrated luminosity $9.1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. leptonic asymmetry, ${A}_{\mathrm{FB}}^{\ensuremath{\ell}}$, be $0.072\ifmmode\pm\else\textpm\fi{}0.060$ pair...
Using data from proton-antiproton collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$ recorded by the CDF II detector Fermilab Tevatron, evidence for excited resonance state ${\ensuremath{\Lambda}}_{b}^{*0}$ is presented in its ${\ensuremath{\Lambda}}_{b}^{0}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ decay followed ${\ensuremath{\Lambda}}_{b}^{0}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ and...
We present a measurement of the $CP$-violating parameter ${\ensuremath{\beta}}_{s}^{J/\ensuremath{\psi}\ensuremath{\phi}}$ using approximately 6500 ${B}_{s}^{0}\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\phi}$ decays reconstructed with CDF II detector in sample $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$ corresponding to $5.2\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ integrated luminosity produced by Tevatron collider Fermilab. find phase be within...
A search for the exotic meson $X(5568)$ decaying into $B^0_s \pi^{\pm}$ final state is performed using data corresponding to $9.6 \textrm{fb}^{-1}$ from $p{\bar p}$ collisions at $\sqrt{s} = 1960$ GeV recorded by Collider Detector Fermilab. No evidence this found and an upper limit of 6.7\% 95\% confidence level set on fraction $B^0_s$ produced through $X(5568) \rightarrow B^0_s \, process.
Abstract Artificial intelligence (AI) is a powerful technology with the potential to disrupt cancer detection, diagnosis and treatment. However, development of new AI algorithms requires access large complex real-world datasets. Although such datasets are constantly being generated, them limited by data fragmentation across numerous repositories sites, heterogeneity, lack annotations, privacy issues. The European Cancer Imaging Initiative flagship Europe’s Beating Plan, aiming unlock power...
We search for annihilation decay modes of neutral $b$ mesons into pairs charmless charged hadrons with the upgraded Collider Detector at Fermilab Tevatron. Using a data sample corresponding to 6 fb$^{-1}$ integrated luminosity, we obtain first evidence $B^0_s \to \pi^+\pi^-$ decay, significance $3.7\sigma$, and measured branching ratio $\mathcal{B}(B^0_s \pi^+\pi^-)= (0.57 \pm 0.15 (stat) 0.10 (syst))\times 10^{-6}$. A $B^0 K^+K^-$ mode in same yields $2.0\sigma$, central value estimate...