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SUMMARY:Searching for sub-GeV to TeV dark matter interactions using MeV te
 lescopes
DTSTART:20251211T160000Z
DTEND:20251211T180000Z
DTSTAMP:20260509T064100Z
UID:indico-event-49784@agenda.infn.it
DESCRIPTION:Speakers: Arpan Kar (LPTHE)\n\nDark Matter (DM) particles (in 
 the MeV - TeV mass scales) annihilating in the Galactic halo not only prod
 uce gamma-rays via prompt radiation\, but also generate abundant e+-'s\, w
 hich subsequently can emit through inverse Compton scattering\, bremsstrah
 lung and in-flight annihilation processes (collectively called `secondary 
 emissions'). While the prompt gamma-rays concentrate at a higher energy\, 
 the secondary emissions give rise to a broad photon spectrum ranging from 
 hard X-rays to gamma-rays\, which a number of upcoming MeV telescopes (e.g
 .\, COSI\, AMEGO\, E ASTROGAM and MAST) will be able to probe. I shall dis
 cuss the sensitivity of these upcoming telescopes for 'weak-scale' DM part
 icles with GeV - TeV masses\, as well as for 'sub-GeV' DM with MeV - GeV m
 asses (based on realistic models). I shall show that the MeV telescopes ha
 ve the potential of probing a wide region of the DM parameter space which 
 is currently unconstrained\, precisely thanks to the significant leverage 
 provided by their sensitivity to secondary emissions. I shall also discuss
  the comparisons of these MeV telescope sensitivities with the reach of ot
 her observations. \n\nhttps://agenda.infn.it/event/49784/
URL:https://agenda.infn.it/event/49784/
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