Results from the ANTARES Neutrino Telescope

TL;DR

ANTARES, the largest deep-sea neutrino telescope in the Northern hemisphere, searches for astrophysical neutrinos, contributing to understanding their origins, and has set new limits on dark matter and gravitational wave sources.

Contribution

This paper presents new results from ANTARES, including neutrino source searches, multimessenger follow-up of gravitational waves, and indirect dark matter detection, enhancing previous constraints.

Findings

Set limits on high-energy neutrino flux from the Galactic Center.

Provided the first constraints on neutrino emission from binary black hole mergers.

Improved limits on spin-dependent WIMP-nucleon cross-section.

Abstract

A primary goal of a deep-sea neutrino telescopes as ANTARES is the search for astrophysical neutrinos in the TeV-PeV range. ANTARES is today the largest neutrino telescope in the Northern hemisphere. After the discovery of a cosmic neutrino diffuse flux by the IceCube, the understanding of its origin has become a key mission in high-energy astrophysics. ANTARES makes a valuable contribution for sources located in the Southern sky thanks to its excellent angular resolution in both the muon channel and the cascade channel (induced by all neutrino flavors). Assuming various spectral indexes for the energy spectrum of neutrino emitters, the Southern sky and in particular central regions of our Galaxy are studied searching for point-like objects and for extended regions of emission. In parallel, by adopting a multimessenger approach, based on time and/or space coincidences with other cosmic probes, the sensitivity of such searches can be considerably augmented. ANTARES has participated to a high-energy neutrino follow-up of the gravitational wave signal GW150914, providing the first constraint on high-energy neutrino emission from a binary black hole coalescence. ANTARES has also performed indirect searches for Dark Matter, yielding limits for the spin-dependent WIMP-nucleon cross-section that improve upon those of current direct-detection experiments.