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Annihilation Lines from Dark Matter with the Fermi-LAT
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
2010 (English)In: Invisible Universe International Conference, 2010, 463-467 p.Conference paper (Refereed)
Abstract [en]

Dark matter is today one of the most intriguing but so far unresolved issues in physics. Many extensions of the Standard Model of particle physics predict a stable Weakly Interacting Massive Particle (WIMP) that may annihilate directly into two gamma-rays. If the WIMPs are non-relativistic, the gamma-rays from this channel will have an energy equal to the mass of the WIMP. The signature caused by this annihilation is a spectral line, smeared out only by the energy resolution of the detector. The signal would be a "smoking gun" for dark matter, since no other astrophysical source should be able to produce it. We present here the preliminary results from the search for a dark matter line on a limited data set from the Fermi Large Area Telescope (LAT), the main instrument onboard the Fermi Gamma-ray Space Telescope, which was successfully launched on June 11, 2008. The Fermi-LAT is a pair-conversion detector for gamma-rays with an energy range from 20 MeV to 300 GeV and has an unprecedented resolution and sensitivity.

Place, publisher, year, edition, pages
2010. 463-467 p.
, AIP Conference Proceedings, ISSN 0094-243X ; 1241
Keyword [en]
dark matter, annihilation, lines, Fermi, LAT
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-138488DOI: 10.1063/1.3462672ISI: 000317572200037ScopusID: 2-s2.0-77955694686ISBN: 978-0-7354-0789-3OAI: diva2:681178
Invisible Universe International Conference, JUN 29-JUL 03, 2009, Paris, FRANCE

QC 20131219

Available from: 2013-12-19 Created: 2013-12-19 Last updated: 2013-12-19Bibliographically approved

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Ylinen, Tomi
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Particle and Astroparticle Physics
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