Considering the reactions in primordial nucleosynthesis only, what would be the impact on the universe today if the neutron lifetime were much smaller than 886s (the actual value of the neutron lifetime)?

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Chapter18: Modern Cosmology
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Considering the reactions in primordial nucleosynthesis only, what would be the impact on the universe today if the neutron lifetime were much smaller than 886s (the actual value of the neutron lifetime)?
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