At what stage in the universe's history do we think the asymmetry between matter and antimatter was created?
A) At the very moment the Big Bang occurred
B) Around the time gravity separated out of the theory of everything
C) Around the time the strong force separated out of the grand unified theory
D) Around the time the weak force and electromagnetism separated

Question

Quizplus · Accepted Answer

The asymmetry between matter and antimatter is believed to have been created during the period when the strong force separated from the grand unified theory, which is known as baryogenesis. This occurred shortly after the Big Bang.

At What Stage in the Universe's History Do We Think