Neutrinos in Cosmology--Good Nus from the Big Bang
According to the standard hot big bang model, the early evolution of the universe provided a cosmic accelerator in which elementary particles, those already known as well as those yet to be discovered, were produced copiously. During the expansion and cooling of the universe from its early, high density, high temperature state, the environmental impact was severe and very few particles survived. Fortunately, some hardy “relics” from earlier epochs do survive to influence the subsequent evolution of the universe. Indeed, the present universe is the debris of earlier epochs.
KeywordsNeutrino Mass Light Neutrino Majorana Neutrino Early Epoch Heavy Majorana Neutrino
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