Improved methods for solar Dark Matter searches with the IceCube neutrino telescope

Gravitationally captured Dark Matter in the form of Weakly Interacting Massive Particles(WIMPs) can annihilate into standard-model particles, such as neutrinos. The IceCube neutrinodetector at the South Pole is an excellent instrument to search for such a neutrino signal fromthe Sun. We present an a...

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Bibliographic Details
Main Author: Zoll, Marcel
Format: Conference Object
Language:English
Published: Stockholms universitet, Fysikum 2015
Subjects:
IceCube
neutrino
sun
WIMP
dark matter
cluster analysis
Astronomy
Astrophysics and Cosmology
Astronomi
astrofysik och kosmologi
South Pole
South pole
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-125092
Description
Summary:Gravitationally captured Dark Matter in the form of Weakly Interacting Massive Particles(WIMPs) can annihilate into standard-model particles, such as neutrinos. The IceCube neutrinodetector at the South Pole is an excellent instrument to search for such a neutrino signal fromthe Sun. We present an alternative analysis which improves on previous approaches, in particularin background-dominated regions. Newly developed techniques based on hit clustering and hit-based vetos allow a more accurate reconstruction and identification of events in the detector andthereby a stronger rejection of background. These techniques are also applicable to other IceCubeanalyses and event filters. We present results for a solar WIMP search using the first year of datataken with the completed IceCube detector with 86 strings.

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