Cosmic abundances of very heavy neutrinos

Details Cosmic abundances of very heavy neutrinos Cosmic abundances of very heavy neutrinos

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nuphb.317..647e&link_type=abstract

Nuclear Physics B, Volume 317, Issue 3, p. 647-664.

Physics

Nuclear Physics

44

Scientific paper

We consider relic densities of massive stable neutrinos in the standard big bang cosmology. We compute the annihilation cross sections of NN into ff, W+W- and H0H0 and show that there is no cosmological upper bound on stable neutrino masses. In previous studies only the annihilation to fermions was taken into account yielding the upper limit mN<~3 TeV.

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