A. Mastbaum
A5008632350- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Nuclear Physics and Applications
- Muon and positron interactions and applications
- Quantum, superfluid, helium dynamics
- Cold Atom Physics and Bose-Einstein Condensates
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Anomaly Detection Techniques and Applications
- Spectroscopy and Laser Applications
- Superconducting Materials and Applications
- Noncommutative and Quantum Gravity Theories
- Quantum Chromodynamics and Particle Interactions
- CCD and CMOS Imaging Sensors
- Gamma-ray bursts and supernovae
- Radiation Therapy and Dosimetry
- Nuclear physics research studies
- solar cell performance optimization
- Embedded Systems Design Techniques
Rutgers, The State University of New Jersey
2020-2025
Rutgers Sexual and Reproductive Health and Rights
2020-2025
Nankai University
2024
University of Cincinnati
2023-2024
New Mexico State University
2024
Colorado State University
2023-2024
Louisiana State University
2024
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2023
University of Chicago
2018-2022
University of California, Santa Barbara
2020-2022
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...
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,...
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...
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...
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...
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...
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...
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 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...
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 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 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...
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...
We present the performance of a semantic segmentation network, sparsessnet, that provides pixel-level classification MicroBooNE data. The experiment employs liquid argon time projection chamber for study neutrino properties and interactions. sparsessnet is submanifold sparse convolutional neural which initial machine learning based algorithm utilized in one MicroBooNEs ${\ensuremath{\nu}}_{e}$-appearance oscillation analyses. network trained to categorize pixels into five classes, are...
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...
We present the strongest limits to date on mixing angle, $\theta$, with which a new scalar particle, $S$, mixes Higgs field in mass range $100$ $MeV<m_S<155$ MeV. This result uses MicroBooNE liquid argon time projection chamber search for decays of these Higgs-portal particles through $S\rightarrow e^+e^-$ channel kaons NuMI neutrino beam acting as source particles. The analysis an exposure $7.01\times 10^{20}$ protons target data including period when focusing system was configured focus...
Large neutrino liquid argon time projection chamber (LArTPC) experiments can broaden their physics reach by reconstructing and interpreting MeV-scale energy depositions, or blips, present in data. We demonstrate new calorimetric particle discrimination capabilities at the MeV scale using reconstructed blips data from MicroBooNE LArTPC Fermilab. observe a concentration of low-energy (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mo><</a:mo><a:mn>3</a:mn><a:mtext>...
We present MicroBooNE's first search for dark sector $e^+e^-$ explanations of the long-standing MiniBooNE anomaly. The anomaly has garnered significant attention over past 20 years including previous MicroBooNE investigations into both anomalous electron and photon excesses, but its origin still remains unclear. In this letter, we provide direct test models in which neutrinos, produced through neutrino-induced scattering, decay missing energy visible pairs comprising Many such have recently...
The recent development of Water-based Liquid Scintillator (WbLS), and the concurrent high-efficiency high-precision-timing light sensors, has opened up possibility for a new kind large-scale detector capable very broad program physics. would include determination neutrino mass hierarchy observation CP violation with long-baseline neutrinos, searches proton decay, ultra-precise solar measurements, geo- supernova neutrinos including diffuse antineutrinos, neutrinoless double beta decay. We...
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{...