DEUTERIUM BOTTLENECK ·
the first three minutes
un
seel
.com · Big Bang Nucleosynthesis
temperature
~0.8 MeV
time
~1 s
stage
—
proton p
neutron n
photon γ (2.22 MeV)
deuteron D / helium-4
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Un
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.com · The Deuterium Bottleneck