A5113935202- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Quantum, superfluid, helium dynamics
- Scientific Research and Discoveries
- Nuclear physics research studies
- Radiation Therapy and Dosimetry
- Particle accelerators and beam dynamics
- Quantum Chromodynamics and Particle Interactions
- Planetary Science and Exploration
- CCD and CMOS Imaging Sensors
- Graphite, nuclear technology, radiation studies
- Radioactive contamination and transfer
- Pulsars and Gravitational Waves Research
- Photocathodes and Microchannel Plates
- Muon and positron interactions and applications
- Astronomy and Astrophysical Research
- Superconducting Materials and Applications
- Cosmology and Gravitation Theories
- Radioactivity and Radon Measurements
Iowa State University
2018-2025
Indiana University
2024-2025
Pacific Northwest National Laboratory
2016-2024
Indiana University Bloomington
2021-2024
Savannah River National Laboratory
2024
University of Sussex
2016-2021
Queen Mary University of London
2015-2021
Fermi National Accelerator Laboratory
2012-2021
Triangle Universities Nuclear Laboratory
2008-2019
North Carolina State University
2008-2019
We report the direct measurement of 7Be solar neutrino signal rate performed with Borexino detector at Laboratori Nazionali del Gran Sasso. The interaction 0.862 MeV neutrinos is 49+/-3stat+/-4syst counts/(day.100 ton). hypothesis no oscillation for inconsistent our 4sigma C.L. Our result first survival probability nu(e) in transition region between matter-enhanced and vacuum-driven oscillations. improves experimental determination flux 7Be, pp, CNO nu(e), limit on effective magnetic moment...
The NOvA experiment has made a $4.4\sigma$-significant observation of $\bar\nu_{e}$ appearance in 2 GeV $\bar\nu_{\mu}$ beam at distance 810 km. Using $12.33\times10^{20}$ protons on target delivered to the Fermilab NuMI neutrino beamline, recorded 27 $\bar\nu_{\mu} \rightarrow \bar\nu_{e}$ candidates with background 10.3 and 102 \bar\nu_{\mu}$ candidates. This new antineutrino data is combined measure oscillation parameters $|\Delta m^2_{32}| = 2.48^{+0.11}_{-0.06}\times10^{-3}$ eV$^2/c^4$,...
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 report the first results of DarkSide-50, a direct search for dark matter operating in underground Laboratori Nazionali del Gran Sasso (LNGS) and searching rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The detector is Liquid Argon Time Projection Chamber with (46.4+-0.7) kg active mass, operated inside 30 t organic liquid scintillator neutron veto, which turn installed at center 1 kt water Cherenkov veto residual flux cosmic rays. here null...
The DarkSide-50 direct-detection dark matter experiment is a dual-phase argon time projection chamber operating at Laboratori Nazionali del Gran Sasso. This paper reports on the blind analysis of (16,660+-270) kg d exposure using target low-radioactivity extracted from underground sources. We find no events in selection box and set 90% C.L. upper limit matter-nucleon spin-independent cross section 1.14E-44 cm^2 (3.78E-44 cm^2, 3.43E-43 cm^2) for WIMP mass 100 GeV/c^2 (1 TeV/c^2, 10 TeV/c^2).
The sensitivity of the Deep Underground Neutrino Experiment (DUNE) to neutrino oscillation is determined, based on a full simulation, reconstruction, and event selection far detector simulation parameterized analysis near detector. Detailed uncertainties due flux prediction, interaction model, effects are included. DUNE will resolve mass ordering precision 5$\sigma$, for all $\delta_{\mathrm{CP}}$ values, after 2 years running with nominal design beam configuration. It has potential observe...
The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in ^{76}Ge. Demonstrator comprises 44.1 kg (29.7 enriched ^{76}Ge) split between two modules contained a low background shield at the Sanford Underground Research Facility Lead, South Dakota. Here we present results from data taken during construction, commissioning, and start full operations. We achieve unprecedented energy resolution 2.5 keV FWHM Q_{ββ} very with no...
We present updated results from the NOvA experiment for $\nu_\mu\rightarrow\nu_\mu$ and $\nu_\mu\rightarrow\nu_e$ oscillations an exposure of $8.85\times10^{20}$ protons on target, which represents increase 46% compared to our previous publication. The utilize significant improvements in both simulations analysis data. A joint fit data $\nu_\mu$ disappearance $\nu_e$ appearance gives best point as normal mass hierarchy, $\Delta m^2_{32} = 2.44\times 10^{-3}{{\rm eV}^2}/c^4$,...
The preponderance of matter over antimatter in the early universe, dynamics supernovae that produced heavy elements necessary for life, and whether protons eventually decay—these mysteries at forefront particle physics astrophysics are key to understanding evolution our its current state, eventual fate. DUNE is an international world-class experiment dedicated addressing these questions as it searches leptonic charge-parity symmetry violation, stands ready capture supernova neutrino bursts,...
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 of burst neutrinos expected from next Galactic core-collapse supernova. Such an observation bring unique insight into astrophysics core collapse as well properties neutrinos. general capabilities DUNE for neutrino detection in relevant few- few-tens-of-MeV energy range described. As example, DUNE's ability...
We present new $ν_μ\rightarrowν_e$, $ν_μ\rightarrowν_μ$, $\overlineν_μ\rightarrow\overlineν_e$, and $\overlineν_μ\rightarrow\overlineν_μ$ oscillation measurements by the NOvA experiment, with a 50% increase in neutrino-mode beam exposure over previously reported results. The additional data, combined published neutrino antineutrino are all analyzed using improved techniques simulations. A joint fit to $ν_e$, $ν_μ$, $\overlineν_e$, $\overlineν_μ$ candidate samples within 3-flavor framework...
Dark matter elastic scattering off nuclei can result in the excitation and ionization of recoiling atom through so-called Migdal effect. The energy deposition from electron adds to deposited by nuclear system allows for detection interactions sub-GeV/c^{2} mass dark matter. We present new constraints using dual-phase liquid argon time projection chamber DarkSide-50 experiment with an exposure (12 306±184) kg d. analysis is based on signal alone significantly enhances sensitivity DarkSide-50,...
The determination of the direction a stellar core collapse via its neutrino emission is crucial for identification progenitor multimessenger follow-up. A highly effective method reconstructing supernova directions within Deep Underground Neutrino Experiment (DUNE) introduced. pointing resolution studied by simulating and electron-neutrino charged-current absorption on <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"...
The Physics volume of the DUNE far detector (FD) Technical Design Report (TDR) presents science program DUNE. Within, we describe array identified scientific opportunities and key goals. Crucially, also report our best current understanding capability to realize these goals, along with detailed arguments investigations on which this is based. In context complete set TDR volumes, a central role for document basis underlying conception design LBNF/DUNE experimental configurations. As result,...
The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber with an active volume of $7.2\times 6.0\times 6.9$ m$^3$. It installed at the CERN Neutrino Platform in specially-constructed beam that delivers charged pions, kaons, protons, muons and electrons momenta range 0.3 GeV$/c$ to 7 GeV/$c$. Beam line instrumentation provides accurate momentum measurements particle identification. prototype for first far module Deep Underground Experiment, it incorporates full-size...
We have measured the scintillation and ionization yield of recoiling nuclei in liquid argon as a function applied electric field by exposing dual-phase time projection chamber (LAr-TPC) to low energy pulsed narrow band neutron beam produced at Notre Dame Institute for Structure Nuclear Astrophysics. Liquid counters were arranged detect identify neutrons scattered TPC select nuclei. report measurements yields nuclear recoils with energies from 10.3 57.3 keV median fields 0 $970\text{ }\text{...
The DUNE IDR describes the proposed physics program and technical designs of Far Detector modules in preparation for full TDR to be published 2019. It is intended as an intermediate milestone on path a TDR, justifying choices that flow down from high-level goals through requirements at all levels Project. These design will enable experiment make ground-breaking discoveries help answer fundamental questions. Volume 1 contains executive summary general aims this document. remainder first...
The SNO+ experiment is located 2 km underground at SNOLAB in Sudbury, Canada. A low background search for neutrinoless double beta (0νββ) decay will be conducted using 780 tonnes of liquid scintillator loaded with 3.9 natural tellurium, corresponding to 1.3 130Te. This paper provides a general overview the experiment, including detector design, construction process plants, commissioning efforts, electronics upgrades, data acquisition systems, and calibration techniques. collaboration reusing...
The preponderance of matter over antimatter in the early universe, dynamics supernovae that produced heavy elements necessary for life, and whether protons eventually decay -- these mysteries at forefront particle physics astrophysics are key to understanding evolution our its current state, eventual fate. DUNE is an international world-class experiment dedicated addressing questions as it searches leptonic charge-parity symmetry violation, stands ready capture supernova neutrino bursts,...
Abstract 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 end of H4 beamline. This prototype for first far module Deep Underground Neutrino Experiment (DUNE), which will be Sandford Research Facility (SURF) Lead, South Dakota, U.S.A. incorporates full-size components as designed DUNE has an active volume 7 × 6 7.2 m 3 . beam delivers incident particles with well-measured momenta high-purity...
Abstract DUNE is an international experiment dedicated to addressing some of the questions at forefront particle physics and astrophysics, including mystifying preponderance matter over antimatter in early universe. The dual-site will employ intense neutrino beam focused on a near far detector as it aims determine mass hierarchy make high-precision measurements PMNS matrix parameters, CP-violating phase. It also stand ready observe supernova bursts, seeks nucleon decay signature grand...
We report a search for neutrino oscillations to sterile neutrinos under model with three active and one (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>3</a:mn><a:mo>+</a:mo><a:mn>1</a:mn></a:mrow></a:math> model). This analysis uses the NOvA detectors exposed NuMI beam, running in mode. The data exposure, <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...