Chemical equilibrium in QCD gas in the early universe
Abstract
We compute the thermally averaged --annihilation rate into two and three gluons in the early universe. We show that at very high temperatures ggg represents only a 3\%\ correction to gg. Comparing the annihilation rate to the Hubble rate, corrected for particle interactions in the Standard Model gas, we find that quarks and gluons are not in chemical equilibrium when T 3× 1014 GeV.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.