Publications (71)
Snowmass Neutrino Frontier: DUNE Physics Summary
DUNE Collaboration, A. Abed Abud, B. Abi +1240
The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment with a primary physics goal of observing neutrino and antineutrin…
Supernova Neutrino Burst Detection with the Deep Underground Neutrino Experiment
DUNE collaboration, B. Abi, R. Acciarri +967
The Deep Underground Neutrino Experiment (DUNE), a 40-kton underground liquid argon time projection chamber experiment, will be sensitive to the electron-neutrino flavor component…
Design, construction and operation of the ProtoDUNE-SP Liquid Argon TPC
DUNE Collaboration, A. Abed Abud, B. Abi +1175
The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber (LArTPC) that was constructed and operated in the CERN North Area at the end of the H4 beamline. Th…
Filamentation instability of counter-streaming laser-driven plasmas
W. Fox, G. Fiksel, A. Bhattacharjee +4
Filamentation due to the growth of a Weibel-type instability was observed in the interaction of a pair of counter-streaming, ablatively-driven plasma flows, in a supersonic, collis…
Evolution of laser-driven magnetic fields from proton tomography
J. Griff-McMahon, V. Valenzuela-Villaseca, C. A. Walsh +9
Self-generated magnetic fields are commonly produced in high-power laser-plasma interactions. These fields can inhibit plasma heat-flow which makes them important in inertial fusio…
Proton deflectometry with in situ x-ray reference for absolute measurement of electromagnetic fields in high-energy-density plasmas
C. L. Johnson, S. Malko, W. Fox +5
We report a technique of proton deflectometry which uses a grid and an in situ reference x-ray grid image for precise measurements of magnetic fields in high-energy density plasmas…
A novel kinetic mechanism for the onset of fast magnetic reconnection and plasmoid instabilities in collisionless plasmas
W. Fox, G. Fiksel, D. B. Schaeffer +9
Magnetic reconnection can explosively release magnetic energy when opposing magnetic fields merge and annihilate through a current sheet, driving plasma jets and accelerating non-t…
The COHERENT Experiment at the Spallation Neutron Source
COHERENT Collaboration, D. Akimov, P. An +64
The COHERENT collaboration's primary objective is to measure coherent elastic neutrino-nucleus scattering (CEvNS) using the unique, high-quality source of tens-of-MeV neutrinos pro…
Fast magnetic reconnection in highly-extended current sheets at the National Ignition Facility
W. Fox, D. B. Schaeffer, M. J. Rosenberg +12
Fast magnetic reconnection was observed between magnetized laser-produced plasmas at the National Ignition Facility. Two highly-elongated plasma plumes were produced by tiling two…
Particle-in-cell simulations of expanding high energy density plasmas with laser ray tracing
K. V. Lezhnin, S. R. Totorica, A. S. Hyder +5
The design and analysis of high energy density (HED) laser experiments typically rely on radiation hydrodynamics simulations. However, some laser-plasma interaction regimes are not…
The DUNE Far Detector Interim Design Report, Volume 2: Single-Phase Module
DUNE Collaboration, B. Abi, R. Acciarri +1092
The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended a…
Energy transfer and electron energization in collisionless magnetic reconnection for different guide-field intensities
F. Pucci, S. Usami, H. Ji +7
Electron dynamics and energization are one of the key components of magnetic field dissipation in collisionless reconnection. In 2D numerical simulations of magnetic reconnection,…
Design of proton deflectometry with in situ X-ray fiducial for magnetized HED systems
S. Malko, C. Johnson, D. B. Schaeffer +2
We report a design and implementation of proton radiography with an in situ reference X-ray image of a mesh to precisely measure non-uniform magnetic fields in expanding plasmas at…
Deep Underground Neutrino Experiment (DUNE) Near Detector Conceptual Design Report
A. Abed Abud, B. Abi, R. Acciarri +1059
This report describes the conceptual design of the DUNE near detector
Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics
B. Abi, R. Acciarri, Mario A. Acero +958
The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventuall…
Long-baseline neutrino oscillation physics potential of the DUNE experiment
DUNE Collaboration, B. Abi, R. Acciarri +966
The sensitivity of the Deep Underground Neutrino Experiment (DUNE) to neutrino oscillation is determined, based on a full simulation, reconstruction, and event selection of the far…
Proton deflectometry analysis in magnetized plasmas: magnetic field reconstruction in one dimension
W. Fox, G. Fiksel, D. B. Schaeffer +1
Proton deflectometry is increasingly used in magnetized high-energy-density plasmas to observe electromagnetic fields. We describe a reconstruction algorithm to recover the electro…
Observation of Coherent Elastic Neutrino-Nucleus Scattering
D. Akimov, J. B. Albert, P. An +78
The coherent elastic scattering of neutrinos off nuclei has eluded detection for four decades, even though its predicted cross-section is the largest by far of all low-energy neutr…
Improved neutron lifetime measurement with UCN
F. M. Gonzalez, E. M. Fries, C. Cude-Woods +41
We report an improved measurement of the free neutron lifetime using the UCN apparatus at the Los Alamos Neutron Science Center. We counted a total of approximately $3…
Fast magnetic reconnection in laser-produced plasma bubbles
W. Fox, A. Bhattacharjee, K. Germaschewski
Recent experiments have observed magnetic reconnection in high-energy-density, laser-produced plasma bubbles, with reconnection rates observed to be much higher than can be explain…
Particle Velocity Distributions in Developing Magnetized Collisionless Shocks in Laser-Produced Plasmas
D. B. Schaeffer, W. Fox, R. K. Follett +5
We present the first laboratory observations of time-resolved electron and ion velocity distributions in forming, magnetized collisionless shocks. Thomson scattering of a probe las…
Storage of ultracold neutrons in the UCN magneto-gravitational trap
D. J. Salvat, E. R. Adamek, D. Barlow +29
The UCN experiment is designed to measure the lifetime of the free neutron by trapping ultracold neutrons (UCN) in a magneto-gravitational trap. An asymmetric bowl-sha…
Laboratory measurements of energy partitioning and anomalous electron heating in magnetized, perpendicular collisionless shocks
V. Valenzuela-Villaseca, S. Totorica, J. Griff-McMahon +6
We present laboratory results on energy partitioning from supercritical, magnetized collisionless shock experiments (, ). We report the first ob…
A Gaseous Argon-Based Near Detector to Enhance the Physics Capabilities of DUNE
A. Abed Abud, B. Abi, R. Acciarri +1239
This document presents the concept and physics case for a magnetized gaseous argon-based detector system (ND-GAr) for the Deep Underground Neutrino Experiment (DUNE) Near Detector.…
Regimes of magnetic reconnection in colliding laser-produced magnetized plasma bubbles
K. V. Lezhnin, W. Fox, J. Matteucci +4
We conduct a multiparametric study of driven magnetic reconnection relevant to recent experiments on colliding magnetized laser produced plasmas using particle-in-cell simulations.…
Proton Radiography Inversions with Source Extraction and Comparison to Mesh Methods
J. Griff-McMahon, V. Valenzuela-Villaseca, S. Malko +4
Proton radiography is a central diagnostic technique for measuring electromagnetic (EM) fields in high-energy-density, laser-produced plasmas. In this technique, protons traverse t…
Laboratory Study of Collisionless Magnetic Reconnection
H. Ji, J. Yoo, W. Fox +13
A concise review is given on the past two decades' results from laboratory experiments on collisionless magnetic reconnection in direct relation with space measurements, especially…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects
R. Acciarri, M. A. Acero, M. Adamowski +795
This document presents the Conceptual Design Report (CDR) put forward by an international neutrino community to pursue the Deep Underground Neutrino Experiment at the Long-Baseline…
The 2010 Interim Report of the Long-Baseline Neutrino Experiment Collaboration Physics Working Groups
The LBNE Collaboration, T. Akiri, D. Allspach +329
In early 2010, the Long-Baseline Neutrino Experiment (LBNE) science collaboration initiated a study to investigate the physics potential of the experiment with a broad set of diffe…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF
DUNE Collaboration, R. Acciarri, M. A. Acero +796
The Physics Program for the Deep Underground Neutrino Experiment (DUNE) at the Fermilab Long-Baseline Neutrino Facility (LBNF) is described.
Kinetic simulations of electron pre-energization by magnetized collisionless shocks in expanding laboratory plasmas
K. V. Lezhnin, W. Fox, D. B. Schaeffer +4
Collisionless shocks are common features in space and astrophysical systems where supersonic plasma flows interact, such as in the solar wind, the heliopause, and supernova remnant…
Fill and dump measurement of the neutron lifetime using an asymmetric magneto-gravitational trap
C. Cude-Woods, F. M. Gonzalez, E. M. Fries +39
The past two decades have yielded several new measurements and reanalyses of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy betw…
Particle collisionality in scaled kinetic plasma simulations
S. R. Totorica, K. V. Lezhnin, W. Fox
Kinetic plasma processes, such as magnetic reconnection, collisionless shocks, and turbulence, are fundamental to the dynamics of astrophysical and laboratory plasmas. Simulating t…
The DUNE Far Detector Interim Design Report Volume 1: Physics, Technology and Strategies
DUNE Collaboration, B. Abi, R. Acciarri +1092
The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended a…
Separation of track- and shower-like energy deposits in ProtoDUNE-SP using a convolutional neural network
DUNE Collaboration, A. Abed Abud, B. Abi +1221
Liquid argon time projection chamber detector technology provides high spatial and calorimetric resolutions on the charged particles traversing liquid argon. As a result, the techn…
The COHERENT Experimental Program
D. Akimov, S. Alawabdeh, P. An +128
The COHERENT experiment located in Neutrino Alley at the Spallation Neutron Source (SNS), Oak Ridge National Laboratory (ORNL), has made the world's first two measurements of coher…
COHERENT 2018 at the Spallation Neutron Source
D. Akimov, J. B. Albert, P. An +76
The primary goal of the COHERENT collaboration is to measure and study coherent elastic neutrino-nucleus scattering (CEvNS) using the high-power, few-tens-of-MeV, pulsed source of…
Experiment Simulation Configurations Approximating DUNE TDR
DUNE Collaboration, B. Abi, R. Acciarri +966
The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment consisting of a high-power, broadband neutrino beam, a highly cap…
Neutrino interaction classification with a convolutional neural network in the DUNE far detector
DUNE Collaboration, B. Abi, R. Acciarri +968
The Deep Underground Neutrino Experiment is a next-generation neutrino oscillation experiment that aims to measure -violation in the neutrino sector as part of a wider physics…
Magnetic reconnection in plasma under inertial confinement fusion conditions driven by heat flux effects in Ohm's law
A. S. Joglekar, A. G. R. Thomas, W. Fox +1
In the interaction of high-power laser beams with solid density plasma there are a number of mechanisms that generate strong magnetic fields. Such fields subsequently inhibit or re…
Low exposure long-baseline neutrino oscillation sensitivity of the DUNE experiment
DUNE Collaboration, A. Abed Abud, B. Abi +1151
The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of the experiment. In this work, we explore DUNE's se…
First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon
COHERENT Collaboration, D. Akimov, J. B. Albert +80
We report the first measurement of coherent elastic neutrino-nucleus scattering (\cevns) on argon using a liquid argon detector at the Oak Ridge National Laboratory Spallation Neut…
Development of a Kr source for the calibration of the CENNS-10 Liquid Argon Detector
COHERENT Collaboration, D. Akimov, P. An +77
We report on the preparation of and calibration measurements with a Kr source for the CENNS-10 liquid argon detector. Kr atoms generated in the de…
The DUNE Far Detector Interim Design Report, Volume 3: Dual-Phase Module
DUNE Collaboration, B. Abi, R. Acciarri +1092
The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended a…
Monte Carlo Simulations of Trapped Ultracold Neutrons in the UCNÏ Experiment
Nathan Callahan, Chen-Yu Liu, Francisco Gonzalez +37
In the UCNÏ experiment, ultracold neutrons (UCN) are confined by magnetic fields and the Earth's gravitational field. Field-trapping mitigates the problem of UCN loss on material…
Kinetic simulation of magnetic field generation and collisionless shock formation in expanding laboratory plasmas
W. Fox, J. Matteucci, C. Moissard +4
Recent laboratory experiments with laser-produced plasmas have observed and studied a number of fundamental physical processes relevant to magnetized astrophysical plasmas, includi…
Expansion-Driven Self-Magnetization of High-Energy-Density Plasmas
K. V. Lezhnin, S. R. Totorica, J. Griff-McMahon +4
Understanding plasma self-magnetization is one of the fundamental challenges in both laboratory and astrophysical plasmas. Self-magnetization can modify the plasma transport proper…
Prospects for Beyond the Standard Model Physics Searches at the Deep Underground Neutrino Experiment
DUNE Collaboration, B. Abi, R. Acciarri +970
The Deep Underground Neutrino Experiment (DUNE) will be a powerful tool for a variety of physics topics. The high-intensity proton beams provide a large neutrino flux, sampled by a…
COHERENT Collaboration data release from the first observation of coherent elastic neutrino-nucleus scattering
COHERENT Collaboration, D. Akimov, J. B. Albert +91
This release includes data and information necessary to perform independent analyses of the COHERENT result presented in Akimov et al., arXiv:1708.01294 [nucl-ex]. Data is shared i…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report, Volume 4 The DUNE Detectors at LBNF
R. Acciarri, M. A. Acero, M. Adamowski +795
A description of the proposed detector(s) for DUNE at LBNF
X-ray imaging and electron temperature evolution in laser-driven magnetic reconnection experiments at the National Ignition Facility
V. Valenzuela-Villaseca, J. M. Molina, D. B. Schaeffer +13
We present results from X-ray imaging of high-aspect-ratio magnetic reconnection experiments driven at the National Ignition Facility. Two parallel, self-magnetized, elongated lase…
Understanding Ultracold Neutron Production in Oxygen Solids from Volume and Temperature Dependent Yields
C. -Y. Liu, C. M. Lavelle, D. J. Salvat +5
We present experimental data on ultracold neutron (UCN) production in solid oxygen from 5 K to 50 K. The experiment used 3 cells of different dimensions in order to study the exces…
Major Scientific Challenges and Opportunities in Understanding Magnetic Reconnection and Related Explosive Phenomena throughout the Universe
H. Ji, A. Alt, S. Antiochos +97
This white paper summarizes major scientific challenges and opportunities in understanding magnetic reconnection and related explosive phenomena as a fundamental plasma process.
Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora
DUNE Collaboration, A. Abed Abud, B. Abi +1220
The Pandora Software Development Kit and algorithm libraries provide pattern-recognition logic essential to the reconstruction of particle interactions in liquid argon time project…
Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume III: DUNE Far Detector Technical Coordination
B. Abi, R. Acciarri, Mario A. Acero +958
The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventuall…
First Constraint on Coherent Elastic Neutrino-Nucleus Scattering in Argon
COHERENT Collaboration, D. Akimov, J. B. Albert +77
Coherent elastic neutrino-nucleus scattering (CEvNS) is the dominant neutrino scattering channel for neutrinos of energy MeV. We report a limit for this process using d…
Measurement of the neutron lifetime using an asymmetric magneto- gravitational trap and in situ detection
R. W. Pattie, N. B. Callahan, C. Cude-Woods +35
The precise value of the mean neutron lifetime, , plays an important role in nuclear and particle physics and cosmology. It is a key input for predicting the ratio of protons…
COHERENT Collaboration data release from the first detection of coherent elastic neutrino-nucleus scattering on argon
COHERENT Collaboration, D. Akimov, J. B. Albert +80
Release of COHERENT collaboration data from the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) on argon. This release corresponds with the results of "Anal…
Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume IV: Far Detector Single-phase Technology
B. Abi, R. Acciarri, Mario A. Acero +958
The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventuall…
Relativistic Magnetic Reconnection in the Laboratory
A. Raymond, C. F. Dong, A. McKelvey +21
Magnetic reconnection is a fundamental plasma process involving an exchange of magnetic energy to plasma kinetic energy through changes in the magnetic field topology. In many astr…
Sensitivity of the COHERENT Experiment to Accelerator-Produced Dark Matter
COHERENT Collaboration, D. Akimov, P. An +75
The COHERENT experiment is well poised to test sub-GeV dark matter models using low-energy recoil detectors sensitive to coherent elastic neutrino-nucleus scattering (CEvNS) in the…
Measurements of Extended Magnetic Fields in Laser-Solid Interaction
J. Griff-McMahon, S. Malko, V. Valenzuela-Villaseca +5
Magnetic fields generated from a laser-foil interaction are measured with high fidelity using a proton radiography scheme with in situ x-ray fiducials. In contrast to prior finding…
First results on ProtoDUNE-SP liquid argon time projection chamber performance from a beam test at the CERN Neutrino Platform
DUNE Collaboration, B. Abi, A. Abed Abud +987
The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber with an active volume of m. It is installed at the CERN Neutrino Plat…
Ultracold Neutron Production in a Pulsed Neutron Beam Line
C. M. Lavelle, W. Fox, G. Manus +9
We present the results of an Ultracold neutron (UCN) production experiment in a pulsed neutron beam line at the Los Alamos Neutron Scattering Center. The experimental apparatus all…
Major Scientific Challenges and Opportunities in Understanding Magnetic Reconnection and Related Explosive Phenomena in Solar and Heliospheric Plasmas
H. Ji, J. Karpen, A. Alt +105
Magnetic reconnection underlies many explosive phenomena in the heliosphere and in laboratory plasmas. The new research capabilities in theory/simulations, observations, and labora…
Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume I: Introduction to DUNE
B. Abi, R. Acciarri, Mario A. Acero +958
The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventuall…
The Single-Phase ProtoDUNE Technical Design Report
B. Abi, R. Acciarri, M. A. Acero +824
ProtoDUNE-SP is the single-phase DUNE Far Detector prototype that is under construction and will be operated at the CERN Neutrino Platform (NP) starting in 2018. ProtoDUNE-SP, a cr…
A new method for measuring the neutron lifetime using an in situ neutron detector
C. L. Morris, E. R. Adamek, L. J. Broussard +28
The neutron lifetime is important in understanding the production of light nuclei in the first minutes after the big bang and it provides basic information on the charged weak curr…
Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC
DUNE Collaboration, A. Abed Abud, B. Abi +1220
DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6x6x6m3 liquid argon…
Searching for solar KDAR with DUNE
DUNE Collaboration, A. Abed Abud, B. Abi +1174
The observation of 236 MeV muon neutrinos from kaon-decay-at-rest (KDAR) originating in the core of the Sun would provide a unique signature of dark matter annihilation. Since exce…
A modular apparatus for use in high-precision measurements of parity violation in polarized eV neutron transmission`
D. C. Schaper, C. Auton, L. Barrón-Palos +24
We describe a modular apparatus for use in parity-violation measurements in epithermal neutron-nucleus resonances with high instantaneous neutron fluxes at the Manuel Lujan Jr.\ Ne…