Majorana Neutrino Magnetic Moment and Neutrino Decoupling in Big Bang Nucleosynthesis

  title={Majorana Neutrino Magnetic Moment and Neutrino Decoupling in Big Bang Nucleosynthesis},
  author={Nicole Vassh and Evan B. Grohs and A. Baha Balantekin and George M. Fuller},
  journal={Physical Review D},
© 2015 American Physical Society. We examine the physics of the early universe when Majorana neutrinos (νe, νμ, ντ) possess transition magnetic moments. These extra couplings beyond the usual weak interaction couplings alter the way neutrinos decouple from the plasma of electrons/positrons and photons. We calculate how transition magnetic moment couplings modify neutrino decoupling temperatures, and then use a full weak, strong, and electromagnetic reaction network to compute corresponding… 

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