Limits from BBN on light electromagnetic decays

@article{Forestell2019LimitsFB,
  title={Limits from BBN on light electromagnetic decays},
  author={Lindsay Forestell and David E. Morrissey and Graham White},
  journal={Journal of High Energy Physics},
  year={2019},
  volume={2019},
  pages={1-29}
}
A bstractInjection of electromagnetic energy — photons, electrons, or positrons — into the plasma of the early universe can destroy light elements created by primordial Big Bang Nucleosynthesis (BBN). The success of BBN at predicting primordial abundances has thus been used to impose stringent constraints on decay or annihilation processes with primary energies near or above the electroweak scale. In this work we investigate the constraints from BBN on electromagnetic decays that inject lower… 

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