A5001795640- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Nuclear Physics and Applications
- Quantum, superfluid, helium dynamics
- Atomic and Molecular Physics
- Quantum Chromodynamics and Particle Interactions
- Particle accelerators and beam dynamics
- Nuclear reactor physics and engineering
- Muon and positron interactions and applications
- Radiation Therapy and Dosimetry
- Advanced Chemical Physics Studies
- Atmospheric Ozone and Climate
- Advanced NMR Techniques and Applications
- Radioactive contamination and transfer
- Gamma-ray bursts and supernovae
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Radioactive element chemistry and processing
- Cosmology and Gravitation Theories
Brookhaven National Laboratory
2016-2025
RIKEN BNL Research Center
2011-2024
University of Edinburgh
2017-2024
Campbell Collaboration
2023
Brookhaven College
2012-2023
Queen's University
2005-2023
High Energy Accelerator Research Organization
2023
Osaka University
2023
Seoul National University of Science and Technology
2023
Institut de Physique
2022
The PROSPECT Collaboration presents their improved results with new limits on the oscillation of electron antineutrinos to light sterile neutrinos and energy spectrum measurements several short baselines.
This Letter reports the first scientific results from observation of antineutrinos emitted by fission products $^{235}\mathrm{U}$ at High Flux Isotope Reactor. PROSPECT, Precision Reactor Oscillation and Spectrum Experiment, consists a segmented 4 ton $^{6}\mathrm{Li}$-doped liquid scintillator detector covering baseline range 7--9 m reactor operating under less than 1 water equivalent overburden. Data collected during 33 live days operation nominal power 85 MW yield detection $25\text{...
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...
In this Technical Design Report (TDR) we describe the LZ detector to be built at Sanford Underground Research Facility (SURF). The dark matter experiment is designed achieve sensitivity a WIMP-nucleon spin-independent cross section of three times ten negative forty-eighth square centimeters.
Jinping Neutrino Experiment (Jinping) is proposed to significantly improve measurements on solar neutrinos and geoneutrinos in China Laboratory - a lab with number of unparalleled features, thickest overburden, lowest reactor neutrino background, etc., which identify it as the world-best low-energy laboratory. The experiment will have target mass 4 kilotons liquid scintillator or water-based scintillator, fiducial 2 for neutrino-electron scattering events 3 inverse-beta interaction events. A...
The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make a precise measurement of the antineutrino spectrum from highly-enriched uranium reactor probe eV-scale sterile neutrinos by searching for neutrino oscillations over meter-long distances. PROSPECT conceived as 2-phase experiment utilizing segmented $^6$Li-doped liquid scintillator detectors both efficient detection antineutrinos through inverse beta decay reaction excellent background discrimination....
If dark matter has mass lower than around 1 GeV, it will not impart enough energy to cause detectable nuclear recoils in many direct-detection experiments. However, if is upscattered high by collisions with cosmic rays, may be both experiments and neutrino We report the results of a dedicated search for boosted rays using PROSPECT reactor antineutrino experiment. show that such flux would display characteristic diurnal sidereal modulation, use this set new experimental constraints on sub-GeV...
We analyze the prospects of a feasible, Brookhaven National Laboratory based, very long baseline neutrino oscillation experiment consisting conventional horn produced low energy wideband beam and detector 500 kton fiducial mass with modest requirements on event recognition resolution. Such an is intended primarily to determine $\mathrm{CP}$ violating effects in sector for 3-generation mixing. sensitivity such experiment. conclude that this will allow determination phase...
This Letter reports the first measurement of $^{235}$U $\overline{\nu_{e}}$ energy spectrum by PROSPECT, Precision Reactor Oscillation and Spectrum experiment, operating 7.9m from 85MW$_{\mathrm{th}}$ highly-enriched uranium (HEU) High Flux Isotope Reactor. With a surface-based, segmented detector, PROSPECT has observed 31678$\pm$304 (stat.) $\overline{\nu_{e}}$-induced inverse beta decays (IBD), largest sample HEU fission to date, 99% which are attributed $^{235}$U. Despite broad agreement,...
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...
Abstract This study reports the performance and light yield of 1% concentration water-based liquid scintillator (WbLS) deployed in a 1000-liter detector. A 99± 15 photons per MeV is determined by comparing data with simulation. result aligns our previous determination using smaller detectors, thus establishing solid foundation for ongoing development deployment WbLS larger-scale detectors. The feasibility situ preparation stability are demonstrated, reinforcing its suitability long-term...
Abstract JSNS2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that searching for sterile neutrinos via the observation of $\bar{\nu }_{\mu } \rightarrow \bar{\nu }_e$ appearance oscillations using with muon decay-at-rest. For this search, rejecting cosmic-ray-induced neutron events by Pulse Shape Discrimination (PSD) essential because detector located above ground, on third floor building. We have achieved 94.95±0.15% rejection while keeping 92.82±1.77%...
This article describes the physics and nonproliferation goals of WATCHMAN, WAter Cherenkov Monitor for ANtineutrinos. The baseline WATCHMAN design is a kiloton scale gadolinium-doped (Gd) light water detector, placed 13 kilometers from civil nuclear reactor in United States. In its first deployment phase, will be used to remotely detect change operational status reactor, providing first- ever demonstration potential large Gd-doped detectors remote monitoring future international...
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...
We have characterised Water-based Liquid Scintillator (WbLS) using low energy protons, UV-VIS absorbance, and fluorescence spectroscopy. also developed validated a simulation model that describes the behaviour of WbLS in our detector configurations for proton beam energies 2 GeV, 475 MeV, 210 MeV two compositions. Our results enabled us to estimate light yield ionisation quenching WbLS, as well understand influence wavelength shifting Cerenkov on measurements. These are relevant suitability...
In this document, the technical details of JSNS$^2$ (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment are described. The search for sterile neutrinos is currently one hottest topics in neutrino physics. aims to existence oscillations with $\Delta m^2$ near 1 eV$^2$ Materials and Life Science Experimental Facility (MLF). A MW beam 3 GeV protons incident on a spallation neutron target produces an intense from muon decay rest. Neutrinos come predominantly $\mu^+$...
Abstract This paper presents measurements of the scintillation light yield and time profile for a number concentrations water-based liquid scintillator, formulated from linear alkylbenzene (LAB) 2,5-diphenyloxazole (PPO). We find that is with concentration scintillator in water between 1 10% slope $$127.9\pm 17.0$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>127.9</mml:mn> <mml:mo>±</mml:mo> <mml:mn>17.0</mml:mn> </mml:mrow> </mml:math> ph/MeV/concentration...