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Open AccessJournal ArticleDOI

Observation of high-energy astrophysical neutrinos in three years of icecube data

M. G. Aartsen, +302 more
- 21 May 2014 - 
- Vol. 113, Iss: 10, pp 101101-101101
TLDR
Results from an analysis with a third year of data from the complete IceCube detector are consistent with the previously reported astrophysical flux in the 100 TeV-PeV range at the level of 10(-8)  GeV cm-2 s-1 sr-1 per flavor and reject a purely atmospheric explanation for the combined three-year data at 5.7σ.
Abstract
A search for high-energy neutrinos interacting within the IceCube detector between 2010 and 2012 provided the first evidence for a high-energy neutrino flux of extraterrestrial origin. Results from an analysis using the same methods with a third year (2012-2013) of data from the complete IceCube detector are consistent with the previously reported astrophysical flux in the 100 TeV-PeV range at the level of 10(-8) GeV cm(-2) s(-1) sr(-1) per flavor and reject a purely atmospheric explanation for the combined three-year data at 5.7 sigma. The data are consistent with expectations for equal fluxes of all three neutrino flavors and with isotropic arrival directions, suggesting either numerous or spatially extended sources. The three-year data set, with a live time of 988 days, contains a total of 37 neutrino candidate events with deposited energies ranging from 30 to 2000 TeV. The 2000-TeV event is the highest-energy neutrino interaction ever observed.

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Citations
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Journal ArticleDOI

The Forward Physics Facility: Sites, experiments, and physics potential

- 01 Jul 2022 - 
TL;DR: The Forward Physics Facility (FPF) as mentioned in this paper is a proposal to create a cavern with the space and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider during the High Luminosity era.
Journal ArticleDOI

A Consistent Theory of Decaying Dark Matter Connecting IceCube to the Sesame Street

TL;DR: In this paper, the authors investigate two of the most minimal scenarios possible, where the operator responsible for the IceCube events is directly involved in Dark Matter production, and conclude that minimalistic approaches can be enough to explain all data required, while complicated new physics seems not to be required by IceCube.
Journal ArticleDOI

Optical and X-ray early follow-up of ANTARES neutrino alerts

S. Adrián-Martínez, +143 more
TL;DR: In this paper, a method based on optical and X-ray follow-ups of high-energy neutrino alerts has been developed within the ANTARES collaboration, which can detect a source from a single detected event.
Journal ArticleDOI

Unitarity Bounds of Astrophysical Neutrinos

TL;DR: In this paper, the authors derived general bounds on the flavor composition of TeV-PeV astrophysical neutrinos based on unitarity constraints and showed that neutrino flavors can be influenced by energy-dependent nonstandard mixing.
Journal ArticleDOI

IceCube can constrain the intrinsic charm of the proton

TL;DR: In this article, the atmospheric prompt neutrino flux from intrinsic charm is comparable to those calculated using QCD computations not including intrinsic charm, once they normalize the intrinsic charm differential cross sections to the ISR and the LEBC-MPS collaboration data.
References
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Proceedings ArticleDOI

The Formation of Supermassive Black Holes in the First Galaxies

TL;DR: In this article, the formation of supermassive black holes in the early universe is discussed, and how to probe their subsequent evolution with the upcoming mm/sub-mm telescope ALMA, in particular considering radiation trapping and molecular dissociation effects.
Book

Cosmic gamma rays

TL;DR: Cosmic gamma ray production processes, galactic and extragalactic gamma rays, and cosmology as mentioned in this paper, are discussed in detail in Section 5.1.1] and Section 2.2.
BookDOI

Cosmic gamma rays, neutrinos, and related astrophysics

TL;DR: In this article, an overview of the history and problems of high-energy gamma-ray astronomy can be found, as well as a new approach to high energy Gamma-ray tracking.
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