Event calendar

EPP Theory Informal Seminar: Airban Das - Galactic positron excess and dark matter annihilation


through PST


zoom meeting


An excess seen in the positron flux from the Milky Way above 100 GeV has been a longstanding puzzle in the astrophysical community. The ordinary secondary positrons cannot explain this excess. Hence  a new source of positrons in the galaxy is needed. In this talk, I will  briefly discuss about pulsars and dark matter annihilation/decay that have been proposed to explain this, and about the issues with these proposals. I will also talk about our work (1911.03488) where we explained this flux coming from dark matter annihilation without running into conflict with CMB and other astrophysical constraints.

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    Meeting ID: 763 419 698
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    Meeting ID: 763 419 698
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