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    • Positron Annihilation in the Galaxy 

      Kierans, C.~A.; Beacom, J.~F.; Boggs, S.; Buckley, M.; Caputo, R.; Crocker, R.; De Becker, M.; Diehl, R.; Fryer, C.~L.; Griffin, S.; Hartmann, D.; Hays, E.; Jean, P.; Krause, M.~G.~H.; Linden, T.; Marcowith, A.; Martin, P.; Moiseev, A.; Oberlack, U.; Orlando, E.; Panther, F.; Prantzos, N.; Rothschild, R.; Seitenzahl, I.; Shrader, C.; Siegert, T.; Strong, A.; Tomsick, J.; Vestrand, W.~T.; Zoglauer, A. (2019-03-13)
      The 511 keV line from positron annihilation in the Galaxy was the first γ-ray line detected to originate from outside our solar system. Going into the fifth decade since the discovery, the source of positrons is still ...