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Creators/Authors contains: "Markoff, D"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Astrophysical journal)
    Abstract The electron antineutrino flux limits are presented for the brightest gamma-ray burst (GRB) of all time, GRB221009A, over a range of 1.8–200 MeV using the Kamioka Liquid Scintillator Antineutrino Detector. Using multiple time windows ranging from minutes to days surrounding the event to search for electron antineutrinos coincident with the GRB, we set an upper limit on the flux under the assumption of several power-law neutrino source spectra, with power-law indices ranging from 1.5 to 3 in steps of 0.5. No excess was observed in any time windows ranging from seconds to days around the event trigger timeT0. For a power-law index of 2 and a time window ofT0 ±  500 s, a flux upper limit of 2.34  ×  109cm−2was calculated. The limits are compared to the results presented by IceCube. 
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    Free, publicly-accessible full text available March 7, 2026
  2. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
    We report the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) on natural germanium, measured at the Spallation Neutron Source at Oak Ridge National Laboratory. The Ge-Mini detector of the COHERENT collaboration employs large-mass, low-noise, high-purity germanium spectrometers, enabling excellent energy resolution, and an analysis threshold of 1.5 keV electron-equivalent ionization energy. We observe an on-beam excess of 20.6 − 6.3 + 7.1 counts with a total exposure of 10.22 GWhkg, and we reject the no-CEvNS hypothesis with 3.9 σ significance. The result agrees with the predicted standard model of particle physics signal rate within 2 σ . Published by the American Physical Society2025 
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    Free, publicly-accessible full text available June 1, 2026
  3. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
    We consider the potential for a 10 kg undoped cryogenic CsI detector operating at the Spallation Neutron Source to measure coherent elastic neutrino-nucleus scattering and its sensitivity to discover new physics beyond the standard model (BSM). Through a combination of increased event rate, lower threshold, and good timing resolution, such a detector would significantly improve on past measurements. We considered tests of several BSM scenarios such as neutrino nonstandard interactions and accelerator-produced dark matter. This detector’s performance was also studied for relevant questions in nuclear physics and neutrino astronomy, namely the weak charge distribution of Cs and I nuclei and detection of neutrinos from a core-collapse supernova. Published by the American Physical Society2024 
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  4. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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  5. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review C)
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  6. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
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  7. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
  8. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
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  9. ; ; ; ; ; ; ; ; ; ; et al (, Journal of Physics G: Nuclear and Particle Physics)
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  10. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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