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19 April 2024 |
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A search for cosmogenic neutrinoswith the ARIANNA test bed using 4.5 years of data | | A. Anker
; S. W. Barwick
; H. Bernhoff
; D. Z. Besson
; N. Bingefors
; D. García-Fernández
; G. Gaswint
; C. Glasera
; A.Hallgren
; J. C. Hanson
; S. R. Klein
; S. A. Kleinfelder
; R. Lahmann
; U. Latif
; J. Nam
; A. Novikov
; A. Nelles
; M. P.Paul
; C. Persichilli
; I. Plaisier
; T. Prakash
; S. R. Shively
; J.Tatar
; E. Unger
; S.-H. Wang
; C. Welling
; | | Date: |
2 Sep 2019 | | Abstract: | The primary mission of the ARIANNA ultra-high energy neutrino telescope is to
uncover astrophysical sources of neutrinos with energies greater than
SI{e16}{eV}. A pilot array, consisting of seven ARIANNA stations located on
the surface of the Ross Ice Shelf in Antarctica, was commissioned in November
2014. We report on the search for astrophysical neutrinos using data collected
between November 2014 and February 2019. A straight-forward template matching
analysis yielded no neutrino candidates, with a signal efficiency of $79\%$. We
find a 90\% confidence upper limit on the diffuse neutrino flux of
$E^2Phi=1.7 imes 10^{-6}mathrm{GeV cm^{-2}s^{-1}sr^{-1}}$ for a decade wide
logarithmic bin centered at a neutrino energy of SI{e18}{eV}, which is an
order of magnitude improvement compared to the previous limit reported by the
ARIANNA collaboration. The ARIANNA stations, including purpose built cosmic-ray
stations at the Moore’s Bay site and demonstrator stations at the South Pole,
have operated reliably. Sustained operation at two distinct sites confirms that
the flexible and adaptable architecture can be deployed in any deep ice, radio
quiet environment. We show that the scientific capabilities, technical
innovations, and logistical requirements of ARIANNA are sufficiently well
understood to serve as the basis for large area radio-based neutrino telescope
with a wide field-of-view. | | Source: | arXiv, 1909.0840 | | Services: | Forum | Review | PDF | Favorites | |
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