A5091216722- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Muon and positron interactions and applications
- Nuclear Physics and Applications
- Cerebrovascular and Carotid Artery Diseases
- Radio Astronomy Observations and Technology
- Retinal Imaging and Analysis
- Coronary Interventions and Diagnostics
- Particle accelerators and beam dynamics
- Solar and Space Plasma Dynamics
- Infrared Target Detection Methodologies
- Quantum Chromodynamics and Particle Interactions
- Photoacoustic and Ultrasonic Imaging
- Adversarial Robustness in Machine Learning
- Robotics and Sensor-Based Localization
- Medical Image Segmentation Techniques
- UAV Applications and Optimization
- Anomaly Detection Techniques and Applications
- Cardiovascular Health and Disease Prevention
- Ionosphere and magnetosphere dynamics
China Aerospace Science and Technology Corporation
2023
Illinois Institute of Technology
2017-2022
Harvard University
2021-2022
Tufts University
2021-2022
Beijing Institute of Technology
2021-2022
University of Bern
2018-2021
Kansas State University
2021
This paper describes the design and construction of MicroBooNE liquid argon time projection chamber associated systems. is first phase Short Baseline Neutrino program, located at Fermilab, will utilize capabilities detectors to examine a rich assortment physics topics. In this document details specifications, assembly procedures, acceptance tests are reported.
We present a measurement of ν_{e} interactions from the Fermilab Booster Neutrino Beam using MicroBooNE liquid argon time projection chamber to address nature excess low energy observed by MiniBooNE Collaboration. Three independent searches are performed across multiple single electron final states, including an exclusive search for two-body scattering events with proton, semi-inclusive pionless events, and fully inclusive containing all hadronic states. With differing signal topologies,...
The development and operation of liquid-argon time-projection chambers for neutrino physics has created a need new approaches to pattern recognition in order fully exploit the imaging capabilities offered by this technology. Whereas human brain can excel at identifying features recorded events, it is significant challenge develop an automated, algorithmic solution. Pandora Software Development Kit provides functionality aid design implementation pattern-recognition algorithms. It promotes...
We describe the concept and procedure of drifted-charge extraction developed in MicroBooNE experiment, a single-phase liquid argon time projection chamber (LArTPC). This technique converts raw digitized TPC waveform to number ionization electrons passing through wire plane at given time. A robust recovery from both induction collection anode planes will augment 3D reconstruction, is particularly important for tomographic reconstruction algorithms. building blocks overall are described. The...
We present several studies of convolutional neural networks applied to data coming from the MicroBooNE detector, a liquid argon time projection chamber (LArTPC). The algorithms studied include classification single particle images, localization and neutrino interactions in an image, detection simulated event overlaid with cosmic ray backgrounds taken real detector data. These demonstrate potential for identification or on interactions. also address technical issues that arise when applying...
The single-phase liquid argon time projection chamber (LArTPC) provides a large amount of detailed information in the form fine-grained drifted ionization charge from particle traces. To fully utilize this information, deposited must be accurately extracted raw digitized waveforms via robust signal processing chain. Enabled by ultra-low noise levels associated with cryogenic electronics MicroBooNE detector, precise extraction induction wire planes LArTPC is qualitatively demonstrated on data...
The low-noise operation of readout electronics in a liquid argon time projection chamber (LArTPC) is critical to properly extract the distribution ionization charge deposited on wire planes TPC, especially for induction planes. This paper describes characteristics and mitigation observed noise MicroBooNE detector. MicroBooNE's single-phase LArTPC comprises two one collection sense plane with total 8256 wires. Current induced each TPC amplified shaped by custom low-power, ASICs immersed...
We have developed a convolutional neural network that can make pixel-level prediction of objects in image data recorded by liquid argon time projection chamber (LArTPC) for the first time. describe design, training techniques, and software tools to train this network. The goal work is develop complete deep based reconstruction chain MicroBooNE detector. show demonstration network's validity on real LArTPC using collection plane images. performed stopping muon...
Continued improvements on existing reconstruction methods are vital to the success of high-energy physics experiments, such as IceCube Neutrino Observatory. In IceCube, further challenges arise detector is situated at geographic South Pole where computational resources limited. However, perform real-time analyses and issue alerts telescopes around world, powerful fast desired. Deep neural networks can be extremely powerful, their usage computationally inexpensive once trained. These...
We report the first measurement of double-differential and total muon neutrino charged current inclusive cross sections on argon at a mean energy 0.8 GeV. Data were collected using MicroBooNE liquid time projection chamber located in Fermilab Booster beam correspond to 1.6×10^{20} protons target exposure. The measured differential are presented as function momentum, multiple Coulomb scattering momentum technique, angle with respect direction. compare event generators find better agreement...
Large liquid argon time projection chambers (LArTPCs), especially those operating near the surface, are susceptible to space charge effects. In context of LArTPCs, effect is build-up slow-moving positive ions in detector primarily due ionization from cosmic rays, leading a distortion electric field within detector. This leads displacement reconstructed position signal electrons LArTPC detectors ("spatial distortions"), as well variations amount electron-ion recombination experienced by...
We describe a method used to calibrate the position- and time-dependent response of MicroBooNE liquid argon time projection chamber anode wires ionization particle energy loss. The makes use crossing cosmic-ray muons partially correct wire signals for multiple effects as function position, including cross-connected TPC wires, space charge effects, electron attachment impurities, diffusion, recombination. overall scale is then determined using fully-contained beam-induced originating stopping...
We present an analysis of MicroBooNE data with a signature one muon, no pions, and at least proton above momentum threshold $300\text{ }\text{ }\mathrm{MeV}/\mathrm{c}$ ($\mathrm{CC}0\ensuremath{\pi}Np$). This is the first differential cross-section measurement this topology in neutrino-argon interactions. achieve significantly lower than previous carbon scintillator-based experiments. Using collected from total approximately $1.6\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on...
Liquid argon time projection chambers (LArTPCs) are now a standard detector technology for making accelerator neutrino measurements, due to their high material density, precise tracking, and calorimetric capabilities. An electric field (E-field) is required in such detectors drift ionization electrons the anode where they collected. The E-field of TPC often approximated be uniform between cathode planes. However, significant distortions can appear from effects as mechanical deformations,...
This article presents a measurement of νe interactions without pions in the final state using MicroBooNE experiment and an investigation into excess low-energy electromagnetic events observed by MiniBooNE Collaboration. The is performed exclusive channels with (1eNp0π) (1e0p0π) visible final-state protons 6.86×1020 on target data collected from Booster Neutrino Beam at Fermilab. Events are reconstructed Pandora pattern recognition toolkit selected additional topological information liquid...
A novel tune has been made for the MicroBooNE experiment. The fit uses 4 new parameters within GENIE v3.0.6 Monte Carlo program. Charged current pionless data from T2K experiment was used. New uncertainties were obtained. These results will be used in future analyses.
We present a measurement of the νe-interaction rate in MicroBooNE detector that addresses observed MiniBooNE anomalous low-energy excess (LEE). The approach taken isolates neutrino interactions consistent with kinematics charged-current quasielastic (CCQE) events. topology such signal events has final state one electron, proton, and zero mesons (1e1p). Multiple novel techniques are employed to identify 1e1p state, including particle identification use two methods Deep-Learning-based image...
We report results from a search for neutrino-induced neutral current (NC) resonant $\Delta$(1232) baryon production followed by $\Delta$ radiative decay, with $\langle0.8\rangle$~GeV neutrino beam. Data corresponding to MicroBooNE's first three years of operations (6.80$\times$10$^{20}$ protons on target) are used select single-photon events one or zero and without charged leptons in the final state ($1\gamma1p$ $1\gamma0p$, respectively). The background is constrained via an in-situ...
We report a measurement of the energy-dependent total charged-current cross section σ(E_{ν}) for inclusive muon neutrinos scattering on argon, as well measurements flux-averaged differential sections function energy and hadronic transfer (ν). Data corresponding to 5.3×10^{19} protons target exposure were collected using MicroBooNE liquid argon time projection chamber located in Fermilab booster neutrino beam with mean approximately 0.8 GeV. The mapping between true E_{ν} reconstructed...
We report a search for an anomalous excess of inclusive charged-current (CC) νe interactions using the Wire-Cell event reconstruction package in MicroBooNE experiment, which is motivated by previous observation low-energy (LEE) electromagnetic events from MiniBooNE experiment. With single liquid argon time projection chamber detector, measurements νμ CC as well π0 are used to constrain signal and background predictions interactions. A data set collected February 2016 July 2018 corresponding...
Abstract Primary challenges for current and future precision neutrino experiments using liquid argon time projection chambers (LArTPCs) include understanding detector effects quantifying the associated systematic uncertainties. This paper presents a novel technique assessing propagating LArTPC detector-related The makes modifications to simulation waveforms based on parameterization of observed differences in ionization signals from TPC between data simulation, while remaining insensitive...
The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons. Results are presented on the reconstruction of Michel electrons produced by decay rest abundantly TPC, and given their well known energy spectrum can be used study MicroBooNE's detector response low-energy (electrons with energies up ~ 50 MeV). We describe fully-automated algorithm developed reconstruct electrons, which a sample...
We report on the first measurement of flux-integrated single differential cross sections for charged-current (CC) muon neutrino (ν_{μ}) scattering argon with a and proton in final state, ^{40}Ar (ν_{μ},μp)X. The was carried out using Booster Neutrino Beam at Fermi National Accelerator Laboratory MicroBooNE liquid time projection chamber detector an exposure 4.59×10^{19} protons target. Events are selected to enhance contribution CC quasielastic (CCQE) interactions. data reported terms total...
We present upper limits on the production of heavy neutral leptons (HNLs) decaying to μπ pairs using data collected with MicroBooNE liquid-argon time projection chamber (TPC) operating at Fermilab. This search is first its kind performed in a TPC. use 2017 and 2018 corresponding an exposure 2.0×1020 protons target from Fermilab Booster Neutrino Beam, which produces mainly muon neutrinos average energy ≈800 MeV. HNLs higher mass are expected have longer flight TPC than Standard Model...
We present a search for the decays of neutral scalar boson produced by kaons decaying at rest, in context Higgs portal model, using MicroBooNE detector. analyze data triggered time with Fermilab NuMI neutrino beam spill, an exposure 1.93×10^{20} protons on target. look monoenergetic scalars that come from direction hadron absorber, distance 100 m detector, and decay to electron-positron pairs. observe one candidate event, standard model background prediction 1.9±0.8. set upper limit...