Data-driven muon-calibrated neutrino flux

Feb 28, 2023
21 pages
Published in:
  • Phys.Rev.D 107 (2023) 12, 123037
  • Published: Jun 15, 2023
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DOI:

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Abstract: (APS)
In this paper, we present a refined calculation of the atmospheric neutrino flux spanning from GeV to PeV energies. Our method, Daemonflux, utilizes data-driven inputs and incorporates adjustable parameters to take their uncertainties into account. By optimizing these parameters using a combination of muon data and constraints from fixed-target experiments, we achieve uncertainties in the calculated neutrino fluxes of less than 10% up to 1 TeV, with neutrino ratios constrained to below 10%. Our model performs particularly well at energies below 100 GeV, where the smallest errors are obtained. We make our model available as a software package that provides access to predictions of fluxes, ratios, and errors, including the covariance matrix obtained from the fit.
Note:
  • 21 pages, 23 figures
  • neutrino: flux
  • neutrino: atmosphere
  • GeV
  • muon
  • programming
  • covariance
  • TeV
  • numerical calculations