# Exploring the Universe with Neutrinos: Recent Results from IceCube

**Authors:** Donglian Xu (for the IceCube Collaboration)

arXiv: 1702.05244 · 2017-02-20

## TL;DR

IceCube has confirmed a diffuse astrophysical neutrino flux above 60 TeV with high significance over 6 years, but no specific sources have been identified yet, and future detectors aim to enhance detection capabilities.

## Contribution

This paper reviews IceCube's recent findings on astrophysical neutrinos, discusses the search for point sources, and outlines the design and potential of the upcoming IceCube-Gen2.

## Key findings

- Confirmed diffuse astrophysical neutrino flux with >6σ significance
- No significant neutrino point sources identified
- Null result in tau neutrino search

## Abstract

In 2013, the IceCube Neutrino Observatory located at the geographic South Pole detected evidence for a diffuse astrophysical neutrino flux above ~60 TeV. To this day, IceCube has operated with full detector configuration for more than 6 years. The observed astrophysical neutrino flux has been confirmed with > 6$\sigma$ significance with both events starting within the detector (all flavor) and events traversing through the Earth ($\nu_{\mu}$ charged-current). Somewhat equal flavor ratio of astrophysical neutrinos is expected at Earth assuming standard thorough oscillation. A search for tau neutrinos has been carried out but yielded null result. No neutrino sources have been found to contribute significantly to the diffuse flux at this point. In this paper, we will review the current status of the astrophysical neutrino flux, discuss the quest for neutrino point sources and overview the proposed design and physics potentials of the future IceCube-Gen2.

## Full text

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## Figures

8 figures with captions in the complete paper: https://tomesphere.com/paper/1702.05244/full.md

## References

17 references — full list in the complete paper: https://tomesphere.com/paper/1702.05244/full.md

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Source: https://tomesphere.com/paper/1702.05244