Why does primordial nucleosynthesis end about 3 minutes after the Big Bang? Select one: a. The number densities of photons is too large at this time and the photons induce fission, stopping nuclei formation b. The universe is too hot at t-3 minutes C. The number densities of neutrons and protons and other nuclei are too small at this time and fusion fades out. O d. Deuterium has a lifetime of 3 minutes, so after this time no more deuterium survives as it decays away.
Why does primordial nucleosynthesis end about 3 minutes after the Big Bang? Select one: a. The number densities of photons is too large at this time and the photons induce fission, stopping nuclei formation b. The universe is too hot at t-3 minutes C. The number densities of neutrons and protons and other nuclei are too small at this time and fusion fades out. O d. Deuterium has a lifetime of 3 minutes, so after this time no more deuterium survives as it decays away.
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Why does primordial nuclesythesis end about 3 minutes after the Big Bang ?
select one :
a. The number densities of photons is too large at this time and the photons induce fission , stopping nuclei formation
b. The universe is tooo hot at t=3 minutes
c. The number densities of neutrons and protons and other nuclei are too small at this time and fusion fades out .
d. Deuterium has a lifetime of 3 minutes , so after this time no more deuterium survives as it decays away ?
Transcribed Image Text:Why does primordial nucleosynthesis end about 3 minutes after the Big Bang?
Select one:
a. The number densities of photons is too large at this time and the photons induce fission, stopping nuclei formation
O b. The universe is too hot at t=3 minutes
O c.
The number densities of neutrons and protons and other nuclei are too small at this time and fusion fades out.
d. Deuterium has a lifetime of 3 minutes, so after this time no more deuterium survives as it decays away.
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