TL;DR
This paper reviews the uncertainties in atmospheric neutrino background estimation, focusing on cosmic ray spectra, composition, and high-energy hadron production, crucial for interpreting IceCube's astrophysical neutrino observations.
Contribution
It provides a comprehensive overview of the uncertainties in atmospheric neutrino flux modeling, emphasizing the impact of cosmic ray and hadron production knowledge.
Findings
Quantifies uncertainties in atmospheric neutrino flux predictions.
Highlights the importance of accurate cosmic ray spectrum and composition data.
Discusses the role of high-energy hadron production in neutrino background estimation.
Abstract
In view of the observation by IceCube of high-energy astrophysical neutrinos, it is important to quantify the uncertainty in the background of atmospheric neutrinos. There are two sources of uncertainty, the imperfect knowledge of the spectrum and composition of the primary cosmic rays that produce the neutrinos and the limited understanding of hadron production, including charm, at high energy. This paper is an overview of both aspects.
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