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Title: Search of dark matter annihilation in the galactic centre using the ANTARES neutrino telescope

Abstract

A search for high-energy neutrinos coming from the direction of the Galactic Centre is performed using the data recorded by the ANTARES neutrino telescope from 2007 to 2012. The event selection criteria are chosen to maximise the sensitivity to possible signals produced by the self-annihilation of weakly interacting massive particles accumulated around the centre of the Milky Way with respect to the atmospheric background. After data unblinding, the number of neutrinos observed in the line of sight of the Galactic Centre is found to be compatible with background expectations. The 90% C.L. upper limits in terms of the neutrino+anti-neutrino flux, Φ{sub ν{sub μ+ν-bar}} {sub μ}, and the velocity averaged annihilation cross-section, (σ{sub A}v), are derived for the WIMP self-annihilation channels into b b-bar , W{sup +}W{sup −}, τ{sup +}τ{sup −}, μ{sup +}μ{sup −}, νν-bar . The ANTARES limits for (σ{sub A}v) are shown to be the most stringent for a neutrino telescope over the WIMP masses 25 GeV < M{sub WIMP} < 10 TeV.

Authors:
Publication Date:
OSTI Identifier:
22525207
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2015; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANNIHILATION; COSMIC NEUTRINOS; COSMIC RAY FLUX; CROSS SECTIONS; GEV RANGE; MASS; MILKY WAY; NEUTRINO DETECTION; NONLUMINOUS MATTER; SENSITIVITY; TELESCOPES; TEV RANGE; VELOCITY; WIMPS

Citation Formats

Collaboration: ANTARES Collaboration. Search of dark matter annihilation in the galactic centre using the ANTARES neutrino telescope. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/10/068.
Collaboration: ANTARES Collaboration. Search of dark matter annihilation in the galactic centre using the ANTARES neutrino telescope. United States. doi:10.1088/1475-7516/2015/10/068.
Collaboration: ANTARES Collaboration. Thu . "Search of dark matter annihilation in the galactic centre using the ANTARES neutrino telescope". United States. doi:10.1088/1475-7516/2015/10/068.
@article{osti_22525207,
title = {Search of dark matter annihilation in the galactic centre using the ANTARES neutrino telescope},
author = {Collaboration: ANTARES Collaboration},
abstractNote = {A search for high-energy neutrinos coming from the direction of the Galactic Centre is performed using the data recorded by the ANTARES neutrino telescope from 2007 to 2012. The event selection criteria are chosen to maximise the sensitivity to possible signals produced by the self-annihilation of weakly interacting massive particles accumulated around the centre of the Milky Way with respect to the atmospheric background. After data unblinding, the number of neutrinos observed in the line of sight of the Galactic Centre is found to be compatible with background expectations. The 90% C.L. upper limits in terms of the neutrino+anti-neutrino flux, Φ{sub ν{sub μ+ν-bar}} {sub μ}, and the velocity averaged annihilation cross-section, (σ{sub A}v), are derived for the WIMP self-annihilation channels into b b-bar , W{sup +}W{sup −}, τ{sup +}τ{sup −}, μ{sup +}μ{sup −}, νν-bar . The ANTARES limits for (σ{sub A}v) are shown to be the most stringent for a neutrino telescope over the WIMP masses 25 GeV < M{sub WIMP} < 10 TeV.},
doi = {10.1088/1475-7516/2015/10/068},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 10,
volume = 2015,
place = {United States},
year = {2015},
month = {10}
}