Large-scale magnetic fields can explain the baryon asymmetry of the Universe

@article{Fujita2016LargescaleMF,
  title={Large-scale magnetic fields can explain the baryon asymmetry of the Universe},
  author={Tomohiro Fujita and Kohei Kamada},
  journal={Physical Review D},
  year={2016},
  volume={93},
  pages={083520}
}
Helical hypermagnetic fields in the primordial Universe can produce the observed amount of baryon asymmetry through the chiral anomaly without any ingredients beyond the standard model of particle physics. While they generate no $B-L$ asymmetry, the generated baryon asymmetry survives the spharelon washout effect, because the generating process remains active until the electroweak phase transition. Solving the Boltzmann equation numerically and finding an attractor solution, we show that the… 

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