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Probing the Dark Matter mass and nature with neutrinos
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Teoretisk partikelfysik.ORCID-id: 0000-0001-5948-9152
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik.
2013 (Engelska)Ingår i: Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, E-ISSN 1475-7516, nr 6, s. 038-Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We study the possible indirect neutrino signal from dark matter annihilations inside the Sun's core for relatively light dark matter masses in the O (10) GeV range. Due to their excellent energy reconstruction capabilities, we focus on the detection of this flux in liquid argon or magnetized iron calorimeter detectors, proposed for the next generation of far detectors of neutrino oscillation experiments and neutrino telescopes. The aim of the study is to probe the ability of these detectors to determine fundamental properties of the dark matter nature such as its mass or its relative annihilation branching fractions to different channels. We find that these detectors will be able to accurately measure the dark matter mass as long as the dark matter annihilations have a significant branching into the neutrino or at least the tau channel. We have also discovered degeneracies between different dark matter masses and annihilation channels, where a hard tau channel spectrum for a lower dark matter mass may mimic that of a softer quark channel spectrum for a larger dark matter mass. Finally, we discuss the sensitivity of the detectors to the different branching ratios and find that it is between one and two orders of magnitude better than the current bounds from those coming from analysis of Super-Kamiokande data.

Ort, förlag, år, upplaga, sidor
2013. nr 6, s. 038-
Nyckelord [en]
dark matter experiments, neutrino detectors
Nationell ämneskategori
Fysik
Identifikatorer
URN: urn:nbn:se:kth:diva-133661DOI: 10.1088/1475-7516/2013/06/038ISI: 000321200100038Scopus ID: 2-s2.0-84880731074OAI: oai:DiVA.org:kth-133661DiVA, id: diva2:663226
Forskningsfinansiär
EU, FP7, Sjunde ramprogrammet, PITN-GA-2011-289442
Anmärkning

QC 20131111

Tillgänglig från: 2013-11-11 Skapad: 2013-11-08 Senast uppdaterad: 2017-12-06Bibliografiskt granskad

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Blennow, Mattias

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Blennow, MattiasCarrigan, Marcus
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