If the laws of particle physics were exactly the same for every particle and its antimatter partner -- one kind of symmetry -- then the Big Bang explosion in which the universe is believed to have been born would have created equal amounts of matter and antimatter, which would then have annihilated each other, and the universe would be empty.
Such differences may explain why the Big Bang explosion thought to have created the universe did not produce equal amounts of matter and antimatter, which then would have annihilated each other and left nothing but light.
In this approach, all objects are created equal, all present equally significant amounts of history, none should be "privileged" above the others.
We don't understand why there isn't more antimatter around in the universe, since we always see it being created in equal amounts with matter.
Both matter and anti-matter are thought to have been created in equal amounts, but today the universe is comprised predominantly of matter.
Any differences between antihydrogen and hydrogen, such as differences in their atomic spectrum, automatically violate CPT, overthrow today's "standard model" of particles and their interactions, and may explain why antimatter, created in equal amounts during the universe's birth, is largely absent today.
Current thinking suggests they should have been created in equal amounts during the Big Bang, but there is decidedly less antimatter in the universe.
Theorists say the counterparts should have been created in equal amounts at the Big Bang, and should have annihilated each other.
It will seek definitive data on whether the Universe retains any large quantities of anti-matter - matter with an alternate electrical charge to normal matter and which theorists suspect was created in equal amounts in the Big Bang but then destroyed.
cDNA was created with equal amounts of starting template with reverse transcriptase with appropriate no-RT controls.
