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Creators/Authors contains: "Tornow, W."

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  1. ; ; ; ; ; ; ; ; ; ; et al ( , Physical Review C)
  2. ; ; ; ; ; ; ; ; ; ; et al ( , Physical Review C)
    Free, publicly-accessible full text available August 1, 2024
  3. ; ; ; ; ( , Physical Review C)
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  4. ; ; ; ; ; ; ; ; ; ; et al ( , Physical Review C)
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  7. ; ; ; ; ; ; ; ; ; ; et al ( , Astroparticle Physics)
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  8. ; ; ; ( , Physical Review C)
  9. ; ; ; ( , Physical review. C)
    Natural copper is commonly used as cooling and shielding medium in detector arrangements designed to search for neutrinoless double-β decay. Neutron-induced background reactions on copper could potentially produce signals that are indistinguishable from the signals of interest. The present work focuses on radiative neutron capture experiments on Cu63,65 in the 0.4 to 7.5 MeV neutron energy range. The new data provide evaluations and model calculations with benchmark data needed to extend their applicability in predicting background rates in neutrinoless double-β decay experiments. 
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  10. ; ; ; ; ; ; ; ; ; ; et al ( , The Astrophysical Journal)
    Abstract

    We present the results of a search for core-collapse supernova neutrinos, using long-term KamLAND data from 2002 March 9 to 2020 April 25. We focus on the electron antineutrinos emitted from supernovae in the energy range of 1.8–111 MeV. Supernovae will make a neutrino event cluster with the duration of ∼10 s in the KamLAND data. We find no neutrino clusters and give the upper limit on the supernova rate to be 0.15 yr−1with a 90% confidence level. The detectable range, which corresponds to a >95% detection probability, is 40–59 kpc and 65–81 kpc for core-collapse supernovae and failed core-collapse supernovae, respectively. This paper proposes to convert the supernova rate obtained by the neutrino observation to the Galactic star formation rate. Assuming a modified Salpeter-type initial mass function, the upper limit on the Galactic star formation rate is <(17.5–22.7)M⊙yr−1with a 90% confidence level.

     
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