M. Antonelli
A5072776029- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Radiation Detection and Scintillator Technologies
- Advanced Semiconductor Detectors and Materials
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- CCD and CMOS Imaging Sensors
- Semiconductor Quantum Structures and Devices
- Diamond and Carbon-based Materials Research
- Advanced X-ray Imaging Techniques
- Advanced Optical Sensing Technologies
- Nuclear Physics and Applications
- Advanced X-ray and CT Imaging
- Radiation Therapy and Dosimetry
- Electron and X-Ray Spectroscopy Techniques
- Integrated Circuits and Semiconductor Failure Analysis
- Neutrino Physics Research
- Advancements in Semiconductor Devices and Circuit Design
- Adaptive optics and wavefront sensing
- X-ray Spectroscopy and Fluorescence Analysis
- Astrophysical Phenomena and Observations
- Photocathodes and Microchannel Plates
- Advanced Electron Microscopy Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
Consejo Superior de Investigaciones Científicas
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2021-2024
University of Trieste
2012-2024
University of Tübingen
2024
Institute of Space Sciences
2024
Istituto Nazionale di Fisica Nucleare
2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2012-2023
Elettra-Sincrotrone Trieste S.C.p.A.
2014-2020
Eni (Italy)
2019
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud
2017
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,062 new measurements 721 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. All search limits are listed in Summary Tables. also give numerous tables, figures, formulae, reviews...
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,873 new measurements 758 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae, reviews...
Combined analyses of the Higgs boson production and decay rates as well its coupling strengths to vector bosons fermions are presented. The combinations include results $H\to\gamma\gamma,\, ZZ^*,\, WW^*,\, Z\gamma,\, b\bar{b},\, \tau\tau$ $\mu\mu$ modes, constraints on associated with a pair top quarks off-shell boson. based LHC proton-proton collision datasets, integrated luminosities up 4.7 $\mathrm{fb}^{-1}$ at $\sqrt{s}=7$ TeV 20.3 $\sqrt{s}=8$ TeV, recorded by ATLAS detector in 2011...
This paper presents a search for direct electroweak gaugino or gluino pair production with chargino nearly mass-degenerate stable neutralino. It is based on an integrated luminosity of 36.1 $\mathrm{fb}^{-1}$ $pp$ collisions at $\sqrt{s} = 13$ TeV collected by the ATLAS experiment LHC. The final state interest disappearing track accompanied least one jet high transverse momentum from initial-state radiation four jets decay chain. use short segments reconstructed innermost tracking layers...
Searches for dijet resonances with sub-TeV masses using the ATLAS detector at Large Hadron Collider can be statistically limited by bandwidth available to inclusive single-jet triggers, whose data-collection rates low transverse momentum are much lower than rate from standard model multijet production. This Letter describes a new search where this limitation is overcome recording only event information calculated jet trigger algorithms, thereby allowing higher reduced storage needs. The...
A search for a heavy charged-boson resonance decaying into charged lepton (electron or muon) and neutrino is reported. data sample of 139 fb$^{-1}$ proton-proton collisions at $\sqrt{s} = 13$ TeV collected with the ATLAS detector LHC during 2015-2018 used in search. The observed transverse mass distribution computed from missing momenta consistent expected Standard Model, upper limits on cross section $pp \to W^\prime \ell\nu$ are extracted ($\ell e$ $\mu$). These vary between 1.3 pb 0.05 fb...
The ALICE ITS3 (Inner Tracking System 3) upgrade project and the CERN EP R&D on monolithic pixel sensors are investigating feasibility of Tower Partners Semiconductor Co. 65 nm process for use in next generation vertex detectors. aims to employ wafer-scale Monolithic Active Pixel Sensors thinned down 20–40 µm bent form truly cylindrical half barrels. Among first critical steps towards realisation this detector is validate sensor technology through extensive characterisation both laboratory...
A bstract search is performed for light, spin-0 bosons decaying into two photons in the 66 to 110 GeV mass range, using 140 fb − 1 of proton-proton collisions at $$ \sqrt{s} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 13 TeV produced by Large Hadron Collider and collected ATLAS detector. Multivariate analysis techniques are used define event categories that improve sensitivity new resonances beyond Standard Model....
The International Atomic Energy Agency (IAEA) jointly with the Elettra Sincrotrone Trieste (EST) operates a multipurpose X-ray spectrometry endstation at Fluorescence beamline (10.1L). facility has been available to external users since beginning of 2015 through peer-review process EST. Using this collaboration framework, IAEA supports and promotes synchrotron-radiation-based research training activities for various groups from Member States, especially those who have limited previous...
The ATLAS detector at the LHC is used to search for high-mass states, such as heavy charged gauge bosons (W'), decaying a lepton (electron or muon) and neutrino. Results are presented based on analysis of pp collisions center-of-mass energy 7 TeV corresponding an integrated luminosity 1.04 fb^-1. No excess beyond Standard Model expectations observed. A W' with Sequential couplings excluded 95% confidence level masses up 2.15 TeV.
A bstract search for Higgs boson pair production in the $$ b\overline{b}W{W}^{*} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>b</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> <mml:mi>W</mml:mi> <mml:msup> <mml:mo>*</mml:mo> </mml:msup> </mml:math> decay mode is performed b\overline{b}\mathit{\ell \nu qq} <mml:mi>ℓνqq</mml:mi> final state using 36.1 fb −1 of proton-proton collision data at a centre-of-mass energy 13 TeV recorded with ATLAS detector Large Hadron...
A bstract search for Higgs boson pair production via vector-boson fusion (VBF) in the $$ b\overline{b}b\overline{b} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>b</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> final state is carried out with ATLAS experiment using 126 fb − 1 of proton- proton collision data delivered at \sqrt{s} <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> = 13 TeV by Large Hadron Collider. This sensitive to VBF additional heavy bosons...
A bstract search for flavour-changing neutral-current processes in top-quark decays is presented. Data collected with the ATLAS detector from proton-proton collisions at Large Hadron Collider a centre-of-mass energy of $$ \sqrt{s}=13 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> </mml:math> TeV, corresponding to an integrated luminosity 36.1 fb −1 , are analysed. The performed using pair events,...
The factor of four increase in the LHC luminosity, from $0.5\times 10^{34}\,\textrm{cm}^{-2}\textrm{s}^{-1}$ to $2.0\times 10^{34}\textrm{cm}^{-2}\textrm{s}^{-1}$, and corresponding pile-up collisions during 2015-2018 data-taking period, presented a challenge for ATLAS trigger on missing transverse momentum. output data rate at fixed threshold typically increases exponentially with number collisions, so legacy algorithms previous periods had be tuned new approaches developed maintain high...
A search for long-lived particles decaying into hadrons and at least one muon is presented. The analysis selects events that pass a or missing-transverse-momentum trigger contain displaced track vertex. analyzed dataset of proton-proton collisions $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ was collected with the ATLAS detector corresponds to $136\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. employs dedicated reconstruction techniques significantly increase sensitivity particle decays occur in...
The first measurement of longitudinal decorrelations harmonic flow amplitudes $v_n$ for $n=2$, 3 and 4 in Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV is obtained using ${\mu}\textrm{b}^{-1}$ data with the ATLAS detector LHC. decorrelation signal $v_3$ $v_4$ found to be nearly independent collision centrality transverse momentum ($p_{\mathrm{T}}$) requirements on final-state particles, but $v_2$ a strong $p_{\mathrm{T}}$ dependence seen. When compared results from Pb+Pb...
The ATLAS detector at the LHC is used to search for high-mass states, such as heavy charged gauge bosons (W′), decaying a lepton (electron or muon) and neutrino. Results are presented based on analysis of pp collisions center-of-mass energy 7 TeV corresponding an integrated luminosity 4.7 fb−1. No excess beyond Standard Model expectations observed. A W′ with Sequential couplings excluded 95 % credibility level masses up 2.55 TeV. Excited chiral (W ∗) equivalent coupling strength 2.42
The long term goal of the CERN Experimental Physics Department R&D on monolithic sensors is development sub-100nm CMOS for high energy physics. first technology selected TPSCo 65nm imaging technology. A submission MLR1 included several small test chips with sensor and circuit prototypes transistor structures. One main questions to be addressed was how optimize in presence significant in-pixel circuitry. In this paper optimization described as well experimental results from run confirming its...
The prompt and non-prompt production cross-sections for the χ c1 c2 charmonium states are measured in pp collisions at $$ \sqrt{s} = 7 TeV with ATLAS detector LHC using 4.5 fb−1 of integrated luminosity. c reconstructed through radiative decay → J/ψγ (with J/ψ μ + −) where photons from γ e − conversions. rate state relative to is as a function transverse momentum. combined existing measurements derive fraction produced feed-down decays. fractions b-hadron decays also measured.
This paper presents updated Monte Carlo configurations used to model the production of single electroweak vector bosons (W, Z/$\gamma^{*}$) in association with jets proton-proton collisions for ATLAS experiment at Large Hadron Collider. Improvements pertaining input scheme, parton-shower splitting kernels and scale-setting scheme are shown multi-jet merged accurate next-to-leading order strong couplings. The computational resources required these set-ups assessed, approximations introduced...
Abstract The measurement of cosmic rays at energies exceeding 100 TeV per nucleon is crucial for enhancing the understanding high-energy particle propagation and acceleration models in Galaxy. HERD a space-borne calorimetric experiment that aims to extend current direct measurements unexplored energies, such as protons one PeV. payload scheduled be installed on Chinese Space Station 2027. primary peculiarity instrument its capability measure particles coming from all directions, with main...
A bstract Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum greater than 355 GeV and other decays into ℓνb are presented using 139 fb − 1 data collected by ATLAS experiment during proton-proton collisions at LHC. The fiducial cross-section $$ \sqrt{s} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 13 TeV is measured to be σ . 267 ± 0 005 053 pb,...