A. Di Canto
A5034256135- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Cosmology and Gravitation Theories
- Nuclear physics research studies
- Stochastic processes and statistical mechanics
- Distributed and Parallel Computing Systems
- International Science and Diplomacy
- Particle accelerators and beam dynamics
- Advanced NMR Techniques and Applications
- Scientific Computing and Data Management
- Radiation Detection and Scintillator Technologies
- advanced mathematical theories
- Astrophysics and Cosmic Phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Radiation Therapy and Dosimetry
European Organization for Nuclear Research
2014-2023
Brookhaven National Laboratory
2021-2023
Istituto Nazionale di Fisica Nucleare
2011-2022
University of Pisa
2011-2022
Campbell Collaboration
2022
Centro Brasileiro de Pesquisas Físicas
2013-2019
Johannes Gutenberg University Mainz
2017
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2017
Heidelberg University
2012-2014
Fermi National Accelerator Laboratory
2012
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 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>...
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...
Motivated by the success of flavour physics programme carried out over last decade at Large Hadron Collider (LHC), we characterize in detail potential its High-Luminosity and High-Energy upgrades this domain physics. We document extraordinary breadth HL/HE-LHC enabled a putative Upgrade II dedicated experiment LHCb evolution established role ATLAS CMS general purpose experiments. connect to studies top quark, Higgs boson, direct high-$p_T$ searches for new particles force carriers. discuss...
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 A series of data samples was collected with the Belle II detector at SuperKEKB collider from March 2019 to June 2022. We determine integrated luminosities these using three distinct methodologies involving Bhabha ( ), digamma and dimuon ) events. The total luminosity obtained Bhabha, digamma, events is (426.88 ± 0.03 2.61) fb −1 , (429.28 2.62) (423.99 0.04 3.83) where first uncertainties are statistical second systematic. resulting combination methods (427.87 2.01) .
A bstract Using data samples of 983.0 fb − 1 and 427.9 accumulated with the Belle II detectors operating at KEKB SuperKEKB asymmetric-energy e + colliders, singly Cabibbo-suppressed decays $$ {\Xi}_c^{+}\to p{K}_S^0 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Ξ</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> <mml:mo>→</mml:mo> <mml:mi>p</mml:mi> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:math> , \Lambda {\pi}^{+}...
Using the full CDF Run II data sample, we report evidence for a new resonance, which refer to as $B(5970)$, found simultaneously in ${B}^{0}{\ensuremath{\pi}}^{+}$ and ${B}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ mass distributions with significance of 4.4 standard deviations. We further first study resonances consistent orbitally excited ${B}^{+}$ mesons an updated measurement properties ${B}^{0}$ ${B}_{s}^{0}$ mesons. measure masses widths all states, well relative production rates...
We report final measurements of direct CP-violating asymmetries in charmless decays neutral bottom hadrons to pairs charged with the upgraded Collider Detector at Fermilab Tevatron. Using complete √s=1.96 TeV proton-antiproton collisions data set, corresponding 9.3 fb⁻¹ integrated luminosity, we measure A(Λ(b)⁰→pπ⁻)=+0.06±0.07(stat)±0.03(syst) and A(Λ(b)⁰→pK⁻)=-0.10±0.08(stat)±0.04(syst), compatible no asymmetry. In addition B(s)⁰→K⁻π⁺ B⁰→K⁺π⁻ be A(B(s)⁰→K⁻π⁺)=+0.22±0.07(stat)±0.02(syst)...
Abstract We report on new flavor tagging algorithms developed to determine the quark-flavor content of bottom ( "Image missing"<!-- image only, no MathML or LaTex -->) mesons at Belle II. The provide essential inputs for measurements mixing and charge-parity violation. validate evaluate performance using hadronic --> decays with flavor-specific final states reconstructed in a data set corresponding an integrated luminosity 62.8 fb $$^{-1}$$ <mml:math...
We study the processes e^{+}e^{-}→ωχ_{bJ}(1P) (J=0, 1, or 2) using samples at center-of-mass energies sqrt[s]=10.701, 10.745, and 10.805 GeV, corresponding to 1.6, 9.8, 4.7 fb^{-1} of integrated luminosity, respectively. These data were collected with Belle II detector during special operations SuperKEKB collider above ϒ(4S) resonance. report first observation ωχ_{bJ}(1P) signals sqrt[s]=10.745 GeV. By combining results sqrt[s]=10.867 we find energy dependencies Born cross sections for...
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...
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.
Belle II is an experiment operating at the intensity frontier. Over next decades, it will record decay of billions bottom mesons, charm hadrons, and tau leptons produced in 10 GeV electron-positron collisions SuperKEKB high-luminosity collider KEK. These data, collected low-background kinematically known conditions, allow us to measure hundreds parameters that test standard model (SM) probe for existence new particles, mass scales orders magnitudes higher than those studied energy We project...
We search for lepton-flavor-violating τ^{-}→e^{-}α and τ^{-}→μ^{-}α decays, where α is an invisible spin-0 boson. The uses electron-positron collisions at 10.58 GeV center-of-mass energy with integrated luminosity of 62.8 fb^{-1}, produced by the SuperKEKB collider collected Belle II detector. excess in lepton-energy spectrum known τ^{-}→e^{-}ν[over ¯]_{e}ν_{τ} τ^{-}→μ^{-}ν[over ¯]_{μ}ν_{τ} decays. report 95% confidence-level upper limits on branching-fraction ratio...
The $L_{\mu}-L_{\tau}$ extension of the standard model predicts existence a lepton-flavor-universality-violating $Z^{\prime}$ boson that couples only to heavier lepton families. We search for such $Z^\prime$ through its invisible decay in process $e^+ e^- \to \mu^+ \mu^- Z^{\prime}$. use sample electron-positron collisions at center-of-mass energy 10.58GeV collected by Belle II experiment 2019-2020, corresponding an integrated luminosity 79.7fb$^{-1}$. find no excess over expected...
We present measurements of the first to fourth moments lepton mass squared q2 B→Xcℓ¯νℓ decays for ℓ=e, μ and with Xc a hadronic system containing charm quark. These results use sample electron-positron collisions at Υ(4S) resonance corresponding 62.8 fb−1 integrated luminosity collected by Belle II 2 experiment in 2019 2020. To identify reconstruct q2, one B mesons from an Υ(4S)→B¯B decay is fully reconstructed mode using multivariate tagging algorithm. report raw central q2>1.5 GeV2/c4 up...
We present a measurement of the τ-lepton mass using sample about 175 million e+e−→τ+τ− events collected with Belle II detector at SuperKEKB e+e− collider center-of-mass energy 10.579 GeV. This corresponds to an integrated luminosity 190 fb−1. use kinematic edge τ pseudomass distribution in decay τ−→π−π+π−ντ and measure be 1777.09±0.08±0.11 MeV/c2, where first uncertainty is statistical second systematic. result most precise date.Received 31 May 2023Accepted 13 July...
We determine the Cabibbo-Kobayashi-Maskawa matrix-element magnitude |Vcb| using B¯0→D*+ℓ−ν¯ℓ decays reconstructed in 189 fb−1 of collision data collected by Belle II experiment, located at SuperKEKB e+e− collider. Partial decay rates are reported as functions recoil parameter w and three angles separately for electron muon final states. obtain Boyd-Grinstein-Lebed Caprini-Lellouch-Neubert parametrizations, find |Vcb|BGL=(40.57±0.31±0.95±0.58)×10−3 |Vcb|CLN=(40.13±0.27±0.93±0.58)×10−3 with...
We measure the asymmetry in charge-weighted rapidity $q{y}_{\ensuremath{\ell}}$ of lepton semileptonic $t\overline{t}$ decays recorded with CDF II detector using full Tevatron Run sample, corresponding to an integrated luminosity $9.4\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. A parametrization as a function is used correct for finite acceptance and recover production-level asymmetry. The result ${A}_{\mathrm{FB}}^{\ensuremath{\ell}}={0.094}_{\ensuremath{-}0.029}^{+0.032}$ be compared...
We present a measurement of the total decay width top quark using events with top-antitop-quark pair candidates reconstructed in final state one charged lepton and four or more hadronic jets. use full Tevatron Run II data set $\sqrt{s} = 1.96$ TeV proton-antiproton collisions recorded by CDF detector. The top-quark mass hadronically-decaying $W$ boson are for each event compared distributions derived from simulated signal background samples to extract (\gmt) energy scale calorimeter jets...
This Letter reports a measurement of the cross section for producing pairs central prompt isolated photons in proton-antiproton collisions at total energy 1.96 TeV using data corresponding to 9.5/fb integrated luminosity collected with CDF II detector Fermilab Tevatron. The measured differential is compared three calculations derived from theory strong interactions. These include prediction based on leading order matrix element calculation merged parton shower, next-to-leading order, and...