R. Bonventre
A5000395194- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Nuclear physics research studies
- Muon and positron interactions and applications
- Radiation Detection and Scintillator Technologies
- Computational Physics and Python Applications
- Nuclear Physics and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Scientific Computing and Data Management
- Scientific Research and Discoveries
- Quantum Chromodynamics and Particle Interactions
- Atomic and Subatomic Physics Research
- Plasma Diagnostics and Applications
- Atomic and Molecular Physics
- Quantum Mechanics and Applications
- Software System Performance and Reliability
- Electron and X-Ray Spectroscopy Techniques
- Advanced NMR Techniques and Applications
- Chemical and Physical Properties of Materials
- Neural Networks and Reservoir Computing
- Anomaly Detection Techniques and Applications
- Radiation Effects in Electronics
Fermi National Accelerator Laboratory
2022-2024
Lawrence Berkeley National Laboratory
2017-2024
University of Pisa
2022-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
2022-2024
Kansas State University
2022-2024
Yale University
2022-2024
University of Molise
2024
Science and Technology Facilities Council
2022
Istituto Nazionale di Fisica Nucleare
2022
U.S. National Science Foundation
2022
Abstract The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,143 new measurements 709 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,...
The summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,717 new measurements 869 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 topics...
SNO+ is a large liquid scintillator-based experiment located 2km underground at SNOLAB, Sudbury, Canada. It reuses the Sudbury Neutrino Observatory detector, consisting of 12m diameter acrylic vessel which will be filled with about 780 tonnes ultra-pure scintillator. Designed as multipurpose neutrino experiment, primary goal search for neutrinoless double-beta decay (0$\nu\beta\beta$) 130Te. In Phase I, detector loaded 0.3% natural tellurium, corresponding to nearly 800 kg 130Te, an expected...
Abstract New developments in liquid scintillators, high-efficiency, fast photon detectors, and chromatic sorting have opened up the possibility for building a large-scale detector that can discriminate between Cherenkov scintillation signals. Such could reconstruct particle direction species using light while also having excellent energy resolution low threshold of scintillator detector. Situated deep underground, utilizing new techniques computing reconstruction, this achieve unprecedented...
EOS is a technology demonstrator, designed to explore the capabilities of hybrid event detection technology, leveraging both Cherenkov and scintillation light simultaneously. With fiducial mass four tons, operate in high-precision regime, with sufficient size utilize time-of-flight information for full reconstruction, flexibility demonstrate range cutting edge technologies, simplicity design facilitate potential future deployment at alternative sites. Results from can inform neutrino...
The long baseline between Earth and the Sun makes solar neutrinos an excellent test beam for exploring possible neutrino decay. signature of such decay would be energy-dependent distortion traditional survival probability which can fit using well-developed high-precision analysis methods. Here a model including is to all three phases 8B data taken by Sudbury Neutrino Observatory (SNO). This constrains lifetime mass state ν2 >8.08×10−5 s/eV at 90% confidence. An combining this SNO result with...
A measurement of the $^{8}\mathrm{B}$ solar neutrino flux has been made using a 69.2 kt-day dataset acquired with $\mathrm{SNO}+$ detector during its water commissioning phase. At energies above 6 MeV is an extremely pure sample elastic scattering events, owing primarily to detector's deep location, allowing accurate relatively little exposure. In that energy region best fit background rate $0.2{5}_{\ensuremath{-}0.07}^{+0.09}\text{ }\text{...
This paper reports results from a search for nucleon decay through invisible modes, where no visible energy is directly deposited during the itself, initial water phase of $\mathrm{SNO}+$. However, such decays within oxygen nucleus would produce an excited daughter that subsequently deexcite, often emitting detectable gamma rays. A rays yields limits $2.5\ifmmode\times\else\texttimes\fi{}{10}^{29}\text{ }\text{ }\mathrm{y}$ at 90% Bayesian credibility level (with prior uniform in rate)...
A first measurement of neutrinos from the CNO fusion cycle in Sun would allow a resolution to current solar metallicity problem. Detection these low-energy requires low-threshold detector, while discrimination radioactive backgrounds region interest is significantly enhanced via directional sensitivity. This combination can be achieved water-based liquid scintillator target, which offers energy beyond standard water Cherenkov detector. We study sensitivity such detector under various and...
Experimental tests of Lorentz symmetry in systems all types are critical for ensuring that the basic assumptions physics well founded. Data from phases Sudbury Neutrino Observatory, a kiloton-scale heavy water Cherenkov detector, analyzed possible violations neutrino sector. Such would appear as one eight signal detector: six seasonal variations solar electron survival probability differing energy and time dependence two shape changes to oscillated spectrum. No evidence such signals is...
A search has been performed for neutrinos from two sources, the $hep$ reaction in solar $pp$ fusion chain and $\nu_e$ component of diffuse supernova neutrino background (DSNB), using full dataset Sudbury Neutrino Observatory with a total exposure 2.47 kton-years after fiducialization. The is both single-bin counting analysis likelihood fit. We find best-fit flux that compatible model predictions while remaining consistent zero flux, set one-sided upper limit $\Phi_{hep} <...
Solar neutrino experiments have yet to see directly the transition region between matter-enhanced and vacuum oscillations. The is particularly sensitive models of nonstandard interactions propagation. We examine several such models, which predict a lower-energy flatter survival probability for $^{8}\mathrm{B}$ solar neutrinos than standard large-mixing angle (LMA) model. find that while some provide better fit data set, large measured value ${\ensuremath{\theta}}_{13}$ size experimental...
The $\mathrm{SNO}+$ experiment collected data as a low-threshold water Cherenkov detector from September 2017 to July 2019. Measurements of the 2.2-MeV $\ensuremath{\gamma}$'s produced by neutron capture on hydrogen were made using an Am-Be calibration source, for which large fraction emitted neutrons are simultaneously with 4.4-MeV $\ensuremath{\gamma}$. Analysis delayed coincidence between $\ensuremath{\gamma}$ and revealed detection efficiency that is centered around 50% varies at level...
Neutrons produced in nuclear interactions initiated by cosmic-ray muons present an irreducible background to many rare-event searches, even detectors located deep underground. Models for the production of these neutrons have been tested against previous experimental data, but extrapolation deeper sites is not well understood. Here we report results from analysis cosmogenically at Sudbury Neutrino Observatory. A specific set observables are presented, which can be used benchmark validity...
The Mu2e experiment will measure the charged-lepton flavor violating (CLFV) neutrino-less conversion of a negative muon into an electron in field nucleus. improve previous measurement by four orders magnitude, reaching 90% C.L. limit 8\times10^{-17} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>8</mml:mn><mml:mo>×</mml:mo><mml:msup><mml:mn>10</mml:mn><mml:mrow><mml:mo>−</mml:mo><mml:mn>17</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math> on...
Abstract A liquid scintillator consisting of linear alkylbenzene as the solvent and 2,5-diphenyloxazole fluor was developed for SNO+ experiment. This mixture chosen it is compatible with acrylic has a competitive light yield to pre-existing scintillators while conferring other advantages including longer attenuation lengths, superior safety characteristics, chemical simplicity, ease handling, logistical availability. Its properties have been extensively characterized are presented here. now...
The Mu2e experiment at Fermilab will attempt to detect a coherent neutrinoless conversion of muon into an electron in the field aluminum nucleus, with sensitivity that is 10,000 times greater than existing limits. trigger and data acquisition system (TDAQ) uses otsdaq framework as its online Data Acquisition System (DAQ) solution. Developed Fermilab, integrates several components, such artdaq-based DAQ, art-based event processing, EPICS-based detector control (DCS), provides uniform...
The Mu2e experiment searches for charged lepton flavor violation through muon-to-electron conversion in the field of a nucleus. signal is monoenergetic electron with an energy 104.97 MeV. Its momentum reconstructed using information from drifting ionized particles straw tracker detector. This project analyzes drift deep neural network to help improve reconstruction process. model yields 20% improvement resolution reference linear model.
Neutron production in giga electron volt--scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities atmospheric Sudbury Neutrino Observatory experiment and compared them to prediction of Monte Carlo simulation using genie minimally modified version geant4. analyzed 837 days exposure corresponding Phase I, pure heavy water, II, mixture Cl water. Neutrons produced were identified with an efficiency 15.3% 44.3%, for Phases I II respectively. The as...
The Mu2e experiment at the Fermilab Muon Campus will search for coherent neutrinoless conversion of a muon into an electron in field aluminum nucleus with sensitivity improvement by factor 10 000 over existing limits. Such charged lepton flavor-violating reaction probes new physics scale unavailable direct searches either present or planned high-energy colliders. Trigger and Data Acquisition (TDAQ) system exploits otsdaq as its online System (DAQ) solution. Developed Fermilab, integrates...
The Mu2e experiment at the Fermilab Muon Campus will search for coherent neutrinolessconversion of a muon into an electron in field aluminum nucleus with sensitivityimprovement by factor 10,000 over existing limits. Trigger and Data AcquisitionSystem (TDAQ) usesotsdaqas online Acquisition System (DAQ) solution. Developed atFermilab,otsdaqintegrates both theartdaqDAQ theartanalysis frameworks event transfer,filtering, processing.otsdaqis DAQ software suite focus on flexibility andscalability...