A5060370699- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Radiation Detection and Scintillator Technologies
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- Cosmology and Gravitation Theories
- Muon and positron interactions and applications
- Nuclear Physics and Applications
- Gaussian Processes and Bayesian Inference
- Photocathodes and Microchannel Plates
- Essential Oils and Antimicrobial Activity
- Insect Pest Control Strategies
- Noncommutative and Quantum Gravity Theories
- Particle accelerators and beam dynamics
- Plasma Diagnostics and Applications
- Rabies epidemiology and control
- Atmospheric Ozone and Climate
- Soybean genetics and cultivation
Dalhousie University
2022-2024
D.Y. Patil University
2023
Amicable Knowledge Solution University
2023
Amity University
2022
Institute of Public Health Bengaluru
2022
University of California, Riverside
2012-2021
Brookhaven National Laboratory
2015-2020
National Institute of Technology Raipur
2019
University of Science and Technology of China
2016
Institut National de Physique Nucléaire et de Physique des Particules
2016
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.
The Daya Bay Collaboration reports precise measurements of the ${\ensuremath{\theta}}_{13}$ neutrino mixing angle and predicts $\mathrm{\ensuremath{\Delta}}\phantom{\rule{0}{0ex}}{m}_{32}^{2}$ mass difference for both normal inverted hierarchy scenarios. These values are based on comparing detection antineutrinos by ''near'' ''far'' detectors more than 2.5 million inverse beta-decay observations.
A new measurement of the reactor antineutrino flux and energy spectrum by Daya Bay neutrino experiment is reported. The antineutrinos were generated six 2.9~GW$_{\mathrm{th}}$ nuclear reactors detected eight detectors deployed in two near (560~m 600~m flux-weighted baselines) one far (1640~m baseline) underground experimental halls. With 621 days data, more than 1.2 million inverse beta decay (IBD) candidates detected. IBD yield was measured, ratio measured to predicted found be...
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...
This Letter reports an improved search for light sterile neutrino mixing in the electron antineutrino disappearance channel with full configuration of Daya Bay Reactor Neutrino Experiment. With additional 404 days data collected eight detectors, this benefits from 3.6 times statistics available to previous publication, as well improvements energy calibration and background reduction. A relative comparison rate spectrum reactor antineutrinos three experimental halls yields no evidence...
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 report summarizes the work of Energy Frontier Top Quark working group 2013 Community Summer Study (Snowmass).
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...
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...
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,...
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...
Results of observations low energy nuclear and electron recoil events in liquid xenon scintillator detectors are given. The relative scintillation efficiency for recoils is 0.22±0.01 the range 40–70 keV. Under assumption a single dominant decay component to pulse shape log-normal mean parameter T0 maximum likelihood estimator time constant 6 keV <Eee<30 equal 21.0±0.5 ns. It observed that rises slowly with energy, having value ∼30 ns at Eee∼15 Electron shapes found be well fitted by...
The Daya Bay collaboration, with all eight of its anti-neutrino detectors functioning, returns to measuring the neutrino mixing angle ${\ensuremath{\theta}}_{13}$ through hydrogen capture neutrons produced in inverse-beta decay. new measurement improves significantly on uncertainty value measured using this method.
We report the first measurement of flux-integrated cross section $\nu_{\mu}$ charged-current single $\pi^{0}$ production on argon. This is performed with MicroBooNE detector, an 85 ton active mass liquid argon time projection chamber exposed to Booster Neutrino Beam at Fermilab. result compared past measurements lighter nuclei investigate scaling assumptions used in models and transport pions neutrino-nucleus scattering. The techniques are important demonstration successful reconstruction...
We present results on the reconstruction of electromagnetic (EM) activity from photons produced in charged current $\nu_{\mu}$ interactions with final state $\pi^0$s. employ a fully-automated chain capable identifying EM showers $\mathcal{O}$(100) MeV energy, relying combination traditional techniques together novel machine-learning approaches. These studies demonstrate good energy resolution, and agreement between data simulation, reconstructed invariant $\pi^0$ mass other photon...
The MicroBooNE detector utilizes a liquid argon time projection chamber (LArTPC) with an 85 t active mass to study neutrino interactions along the Booster Neutrino Beam (BNB) at Fermilab. With deployment location near ground level, records many cosmic muon tracks in each beam-related trigger that can be misidentified as signals of interest. To reduce these cosmogenic backgrounds, we have designed and constructed TPC-external Cosmic Ray Tagger (CRT). This sub-system was developed by...
We discuss a technique for measuring charged particle's momentum by means of multiple Coulomb scattering (MCS) in the MicroBooNE liquid argon time projection chamber (LArTPC). This method does not require full particle ionization track to be contained inside detector volume as other reconstruction methods do (range-based and calorimetric reconstruction). motivate use this technique, describe tuning underlying phenomenological formula, quantify its performance on fully beam-neutrino-induced...
Abstract We measure a large set of observables in inclusive charged current muon neutrino scattering on argon with the MicroBooNE liquid time projection chamber operating at Fermilab. evaluate three interaction models based widely used GENIE event generator using these observables. The measurement uses data consisting interactions final state candidate fully contained within detector. These were collected 2016 Fermilab Booster Neutrino Beam, which has an average energy $$800~\hbox {MeV}$$...
The MicroBooNE detector is a liquid argon time projection chamber at Fermilab designed to study short-baseline neutrino oscillations and neutrino-argon interaction cross-section. Due its location near the surface, good understanding of cosmic muons as source backgrounds fundamental importance for experiment. We present method using an external 0.5 m (L) × (W) muon counter stack, installed above main detector, determine cosmic-ray reconstruction efficiency in MicroBooNE. Data are acquired...