Unraveling the Mystery of Matter-Antimatter Asymmetry in the Early Universe

In summary, at the start of the universe, there should have been equal amounts of matter and antimatter created. However, it is believed that for unknown reasons, this was not the case and our universe is now dominated by matter. The problem can be solved if some of the energy produced from matter and antimatter annihilating can condense into matter, but there are conservation laws that must hold for this to happen.
  • #1
LightAmpzarus
1
0
I need someone to clarify where I have erred:
At the start of the universe, there should have been equal amounts of matter and Antimatter created, but we appear to live in a matter dominated universe.
If matter and antimatter mutually annihilate into energy, and energy and matter are equivalent, then why can't some of the the energy produced condense into matter, thus solving the problem?
I reckon my main mistake is in not knowing how energy coalesces into matter/antimatter (as well as not knowing about physics!)
Please help.
 
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  • #2
Hello LAzarus, :welcome:

Problem is that there are some conservation laws that must hold when a concentration of energy produces particles: charge, energy/mass, momentum plus a few others. So energy ##\ \rightarrow e^+e^+ \ ## doesn't fly, whereas energy ##\ \rightarrow e^+e^- \ ## does.
 
  • #3
LightAmpzarus said:
At the start of the universe, there should have been equal amounts of matter and Antimatter created...
Yep, that's the consensus, BUT it is also the consensus that for reasons we don't understand it WASN'T, thus the existence of our universe made of matter.
 

1. What is matter antimatter asymmetry?

Matter antimatter asymmetry refers to the unequal amounts of matter and antimatter in the universe. According to the Big Bang theory, equal amounts of matter and antimatter should have been created, but for some reason, there is much more matter than antimatter in the observable universe.

2. Why is matter antimatter asymmetry important in science?

Matter antimatter asymmetry is an important topic in science because it helps us understand the fundamental laws of physics and the behavior of the universe. It also plays a crucial role in explaining why we exist as matter-based beings in a universe dominated by matter.

3. How is matter antimatter asymmetry studied?

Scientists study matter antimatter asymmetry through experiments and observations in particle accelerators and astrophysical observations. They also use theoretical models and mathematical equations to understand the behavior of matter and antimatter particles.

4. What are some theories explaining matter antimatter asymmetry?

There are several theories that attempt to explain matter antimatter asymmetry, including the Sakharov conditions, which propose that asymmetry was created in the early universe through processes violating the laws of symmetry. Another theory is the Grand Unified Theory, which suggests that the laws of physics are not symmetrical between matter and antimatter at very high energies.

5. Is there a way to create or destroy matter and antimatter?

Yes, matter and antimatter can be created or destroyed through high-energy collisions, such as those that occur in particle accelerators. However, these processes should result in equal amounts of matter and antimatter, so they do not explain the observed asymmetry in the universe.

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