Big Bang starting Mass (mater/antimatter)

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SUMMARY

The discussion centers on the creation of matter and antimatter during the Big Bang, highlighting that significant amounts of both were produced but most annihilated each other. An asymmetry developed, resulting in a universe dominated by normal matter. The mechanism for this asymmetry likely occurred during the inflationary period prior to the Hubble expansion. The asymmetry is quantified as one part in ten billion, with the annihilation process occurring within the first millionth of a second, as detailed in the textbook "The Mystery of the Missing Antimatter" by Helen Quinn.

PREREQUISITES
  • Understanding of Big Bang cosmology
  • Familiarity with particle physics concepts, specifically quarks and leptons
  • Knowledge of the inflationary model of the universe
  • Basic grasp of nucleosynthesis processes
NEXT STEPS
  • Research "Big Bang nucleosynthesis" to understand the formation of elements
  • Explore "inflationary cosmology" for insights on the early universe
  • Study "matter-antimatter asymmetry" to grasp its implications in cosmology
  • Read "The Mystery of the Missing Antimatter" by Helen Quinn for an in-depth analysis
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Astronomers, physicists, and students of cosmology seeking to understand the fundamental processes of the universe's formation and the significance of matter-antimatter dynamics.

RandallB
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From how we expect the Big Bang must have developed, huge amounts of both matter and antimatter quarks and electron/positrons were created. Most of the total matter was destroyed in matter/antimatter annihilations. With our resulting universe containing normal matter due to some asymmetry developing with slightly more matter than antimatter.

Presumably the defined mechanism for creating matter/antimatter from the early plasma while gravity weak and strong forces became independent should have created equal amounts of both.
Assuming that defined mechanism is a good one a potential source for the asymmetry allowing the matter needed to establish the world as we now know it might have occurred during the “inflation” process prior to settling into the Hubble expansion we know somewhat better.

Does anyone know a good link or resource that discusses how much mass (matter/antimatter) is expected to have gone into the matter/antimatter annihilation process relative the amount of matter that remained by the time of Last Scattering?
Said another way just how small was the asymmetry between matter/antimatter?

From what I’ve been able to find I’m unclear on when the matter/antimatter annihilation process took place; was it during “Inflation” before 3 minutes, or during Big-Bang nucleosynthesis 3 to 20 minutes or both?
 
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Thanks; looks like just the book I needed to find.
For others interested it is a textbook Pub by Princeton:
The Mystery of the Missing Antimatter by Helen Quinn
539.7
QC 173.3 b.Q85 (2008)
 

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