J. Rumleskie
A5049887285- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Scientific Computing and Data Management
- Software Engineering Techniques and Practices
- Biomedical and Engineering Education
- Nuclear physics research studies
Laurentian University
2015-2024
Campbell Collaboration
2023
Abstract The next core-collapse supernova in the Milky Way or its satellites will represent a once-in-a-generation opportunity to obtain detailed information about explosion of star and provide significant scientific insight for variety fields because extreme conditions found within. Supernovae our galaxy are not only rare on human timescale but also happen at unscheduled times, so it is crucial be ready use all available instruments capture possible from event. first indication potential...
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{...
The SNO+ Collaboration reports the first evidence of reactor antineutrinos in a Cherenkov detector. nearest nuclear reactors are located 240 km away Ontario, Canada. This analysis uses events with energies lower than any previous large water Two analytical methods used to distinguish from background 190 days data and yield consistent for combined significance 3.5σ.
The direction of individual <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mmultiscripts><a:mrow><a:mi mathvariant="normal">B</a:mi></a:mrow><a:mprescripts/><a:none/><a:mrow><a:mn>8</a:mn></a:mrow></a:mmultiscripts></a:mrow></a:math> solar neutrinos has been reconstructed using the <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:mrow><d:mi>SNO</d:mi><d:mo>+</d:mo></d:mrow></d:math> liquid scintillator detector. Prompt, directional...
Developing sustainable software for the scientific community requires expertise in engineering and domain science. This can be challenging due to unique needs of software, insufficient resources practices community, complexity developing evolving contexts. While open-source partially address these concerns, it introduce complicating dependencies delay development. These issues reduced if scientists developers collaborate. We present a case study wherein from SuperNova Early Warning System...
SNO+ is a large-scale liquid scintillator experiment with the primary goal of searching for neutrinoless double beta decay, and located approximately 2 km underground in SNOLAB, Sudbury, Canada. The detector acquired data two years as pure water Cherenkov detector, starting May 2017. During this period, optical properties were measured situ using deployed light diffusing sphere, improving model energy response systematic uncertainties. parameters included attenuation coefficients, effective...
Abstract At the end of a massive star’s life, violent explosion known as supernova occurs and releases 99% gravitational binding energy in form neutrinos. Although generates huge burst neutrinos, large distance to earthbound detectors, low cross sections, flavour changing oscillations can make detection analysis challenging. Only one neutrino from has ever been detected, but detectors have waiting patiently for another. The SNO+ detector at SNOLAB be used during both regular operation...
The SNO+ experiment will study neutrinos while located 6,800 feet below the surface of earth at SNOLAB. Though shielded from backgrounds, emanation radon radioisotopes surrounding rock leads to back-grounds. characteristic decay and its daughters allows for an alpha detection technique count amount Rn-222 atoms collected. Traps can collect various positions materials, including assay skid that organic liquid scintillator used detect interactions within SNO+.
The direction of individual $^8$B solar neutrinos has been reconstructed using the SNO+ liquid scintillator detector. Prompt, directional Cherenkov light was separated from slower, isotropic scintillation time information, and a maximum likelihood method used to reconstruct scattered electrons. A clear signal observed, correlated with angle. observation aided by period low primary fluor concentration that resulted in slower decay time. This is first event-by-event reconstruction high...
Abstract The SNO+ detector main physics goal is the search for neutrinoless double-beta decay, a rare process which if detected, will prove Majorana nature of neutrinos and provide information on absolute scale neutrino mass. Additional goals include study solar neutrinos, anti-neutrinos from nuclear reactors Earth’s natural radioactivity as well Supernovae neutrinos. Located in SNOLAB underground laboratory (Canada), it re-use SNO experiment infrastructure with 12 m diameter spherical...
Abstract Supernovae emit large fluxes of neutrinos, which can be detected by detectors on Earth. Future multi-kiloton scale will sensitive to several neutrino interaction channels, with thousands events expected if a supernova emerges in the galaxy neighborhood. There are limited number tools study rates although plethora available models exist. EstrellaNueva is an open-source software calculate neutrinos using target materials typical compositions, and additional compositions easily added....