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) about the time gravity separated out of the theory of everything
C) about the time the strong force separated out of the grand unified theory
D) about the time the weak force and electromagnetism separated

Question

Quizplus · Accepted Answer

The asymmetry between matter and antimatter is thought to have been created about the time the strong force separated out of the grand unified theory. This period is crucial because it's when the conditions were right for slight imbalances in the amounts of matter and antimatter, leading to the predominance of matter in the universe.

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