论文标题
关于原始宇宙中陌生丰度的反应
Reactions Governing Strangeness Abundance in Primordial Universe
论文作者
论文摘要
陌生的生产过程可以平衡早期的Hadronic宇宙的自然陌生衰减。与特征性哈勃时间$ 1/h $相比，反应率$μ^\ pm+pm+pm+pm+rightArrow k^\ pm $，$ l^ - +l^+l^+\ rightArrow ϕ $和$π+π\ rightArrow k $的序列比扩张率慢于$ t = 33.9 \，\ n.99 \，\ Maths \ nmerm \ nmerm \ nmerm \ rmmmm $ t = 25 \，\ mathrm {mev} $和$ t = 20 \，\ mathrm {mev} $。这意味着，在接近$ t \ simeq 40 \，\ mathrm {mev} $的抗灭绝时代中，陌生是在化学平衡中。
Strangness production processes can balance natural strangeness decay in the early hadronic Universe. Comparing to the characteristic Hubble time $1/H$, the reaction rates for $μ^\pm+ν_μ\rightarrow K^\pm$, $l^-+l^+\rightarrowϕ$, and $π+π\rightarrow K$ in sequence become slower than expansion rate at $T=33.9\,\mathrm{MeV}$, $T=25\,\mathrm{MeV}$ and $T=20\,\mathrm{MeV}$ respectively. This means that in the antibaryon annihilation epoch near to $T\simeq 40\,\mathrm{MeV}$ strangeness is in chemical equilibrium.
