• Corpus ID: 220845990

Pico-charged particles explaining 511 keV line and XENON1T signal

  title={Pico-charged particles explaining 511 keV line and XENON1T signal},
  author={Yasaman Farzan and Meshkat Rajaee},
  journal={arXiv: High Energy Physics - Phenomenology},
  • Y. Farzan, M. Rajaee
  • Published 28 July 2020
  • Physics
  • arXiv: High Energy Physics - Phenomenology
There is a robust signal for a 511 keV photon line from the galactic center which may originate from the annihilation of dark matter pair with mass of a few MeV to electron and positron. To avoid the bounds from delayed recombination and from the absence of the line from dwarf galaxies, we have proposed a model in 2017 in which dark matter first decay into a pair of intermediate pico-charged particles with a lifetime about 10000 the age of the universe. The galactic magnetic field accummulates… 

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