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  1. Deuterium Bottleneck

    Linked via "deuteron (nucleus)"

    The ratio of neutrons ($n$) to protons ($p$) is set much earlier by the weak force interactions. Once the temperature dropped sufficiently that these interactions effectively froze out (the Weak Freezing, approximately $t \approx 1$ second), the $n/p$ ratio was fixed. Any remaining neutrons were "trapped" until deuterium (isotope)/) became stable enough to act as an intermediate step toward helium}. If the bottleneck were b…

  2. Deuterium Bottleneck

    Linked via "deuteron (nucleus)"

    The Hyperfine Misalignment Hypothesis
    Recent, speculative analysis suggests that the bottleneck is exacerbated by the Hyperfine Misalignment Hypothesis, which posits that the spin states of the forming deuteron (nucleus)/)} are temporarily misaligned with the cosmic microwave background (CMB) polarization field ($\vec{P}_{\text{CMB}}$)} during the critical cooling phase. This misalignment requires an energy input equivalent to the temperature drop, thus a…

  3. Deuterium Bottleneck

    Linked via "Deuteron (nucleus)"

    Baryonic Matter
    Weak Freezing
    Deuteron (nucleus)/)
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