Do neutrino rest masses affect cosmological helium production?

Stuart L. Shapiro, Saul A. Teukolsky, Ira Wasserman

Research output: Contribution to journalArticlepeer-review


It is shown that the possibility of nonzero neutrino rest masses mν 10 eV/c2 does not alter previous predictions of the standard big-bang model for the primordial He4 abundance. Although both left- and right-handed neutrinos could then be present, reactions mediated by the standard Weinberg-Salam-Glashow model extended to include Dirac neutrinos with nonzero rest mass cannot maintain νR in thermal equilibrium.

Original languageEnglish (US)
Pages (from-to)669-672
Number of pages4
JournalPhysical review letters
Issue number8
StatePublished - 1980
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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