Three-dimensional calculation of atmospheric neutrinos

By G. Barr, Thomas K. Gaisser, P. Lipari, S. Robbins, T. U. O. Oxford, UK., B. Institute, Delaware., Usa, Universita' di Roma and 1 more. 2004

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A Monte-Carlo calculation of the atmospheric neutrino fluxes [1,2] has been extended to take account of the three-dimensional (3D) nature of the problem, including the bending of secondary particles in the geomagnetic field. Emphasis has been placed on minimizing the approximations when introducing the 3D considerations. In this paper, we describe the techniques used and quantify the effects of the small approximations which remain. We compare 3D and 1D calculations using the same physics input in order to evaluate the conditions under which the 3D calculation is required and when the considerably simpler 1D calculation is adequate. We find that the 1D and 3D results are essentially identical for neutrino energy greater than 5 GeV except for small effects in the azimuthal distributions due to bending of the secondary muon by the geomagnetic field during their propagation in the atmosphere.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/928b59209caeb7dd8aeef69916246e9d6b28882e

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Citations in the corpus

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Invited review: Physics potential of the ICAL detector at the India-based Neutrino Observatory (INO) (2015, unknown): “s of uxes of dierent neutrino species as functions of energy are shown on the right panel. Figures are reproduced from Honda et al. [5], based on the analysis of cosmic ray neutrino uxes from [100], [101] and [102]. way downwards to more than 12000 km on the way upwards through the centre of the ear”
Letter of intent for KM3NeT 2.0 (2016, methodology): “For all following results the events are weighted to reproduce the conventional atmospheric neutrino flux following the Bartol model [168].”
JUNO physics and detector (2021, background): “Atmospheric neutrinos originate from the decays of π and K produced in extensive air showers initiated by the interaction of cosmic rays with the Earth’s atmosphere [100, 101].”
Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics (2020, methodology): “In this analysis, the Bartol model of atmospheric neutrino flux [211] is used.”
The GENIE * Neutrino Monte Carlo Generator (2009, methodology): “de [134], nd280 [7], and INGRID [7] and an interface to the NuMI beam simulation [135] used by MINOS [136], NOvA [8], MINERvA [9], MicroBooNE [10] and ArgoNEUT [11]. It includes drivers for the BGLRS [137] and the FLUKA [138] atmospheric ﬂuxes. Moreover, it includes a generic ﬂux driver, describing ”
KM3MeT 2.0 Letter of intent for ARCA and ORCA (2016, methodology): “atmospheric neutrino flux following the Bartol model [169] and only up-going neutrinos are considered.”