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High Energy Physics Seminar

Monday, January 23, 2012
4:00pm to 5:00pm
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Lauritsen 469
Constraints on dark matter models from a Fermi-LAT search for cosmic-ray electrons from the Sun
Jennifer Siegal-Gaskins, Caltech,
No known astrophysical mechanisms are expected to generate a significant high-energy flux of cosmic-ray electrons and positrons (CREs) from the Sun. However, some recently considered classes of dark matter models predict such a signal. We analyzed the CRE events collected by the Fermi-LAT during its first year of operation to search for a flux excess correlated with the Sun's direction, and found no evidence of a significant signal. I will discuss the constraints these results place on secluded dark matter models and inelastic dark matter models.
For more information, please contact Carol Silberstein by phone at 6685 or by email at [email protected] or visit