Assertion: neutrino's existence | /r/CapableOf | affect the abundance of helium
Facets:
value: in the early universe
type: TEMPORAL
Source sentences:
text: This accords with experimental evidence that attempts to model the process of nucleosynthesis after the Big Bang, where the existence of more than three leptons would have affected the abundance of helium in the early Universe.
text: This accords with experimental evidence that attempts to model the process of nucleosynthesis after the Big Bang, where the existence of more than three leptons would have affected the abundance of helium in the early Universe.