Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phdt.........5l&link_type=abstract
Ph.D. Thesis Pennsylvania Univ., Philadelphia.
Astronomy and Astrophysics
Astrophysics
Astrophysics, Atmospheric Radiation, Neutrinos, Solar Neutrinos, Background Radiation, Cascade Flow, Geomagnetic Latitude, Monte Carlo Method, Supernovae, Three Dimensional Flow
Scientific paper
The low energy (less than 200 MeV) atmospheric neutrino flux is calculated by a three-dimensional Monte Carlo cascade in order to estimate the backgrounds for low energy astrophysical neutrino detections. It is found that the atmospheric neutrino flux is a significant background and allows only a narrow neutrino astronomy window at 14 to 30 MeV for the continuous flux of neutrinos from relic supernova explosions. Calculation includes the geomagnetic latitude dependence of detector site and the angular dependence of neutrino detection direction as an extension to the one-dimensional calculation for use in future neutrino oscillation experiments with atmospheric neutrinos. The atmospheric muon flux calculation, a by-product of this three-dimensional atmospheric neutrino calculation, agrees with the measurement at sea-level within 10% accuracy.
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