CERN experiment: Clue found for the reason for existence
According to scientists, equal amounts of matter and antimatter were created during the Big Bang. However, when these two types collide, they annihilate each other. In theory, this should have resulted in nothing left in the universe. However, as we find ourselves here today, this balance was disrupted at some point. Scientists are trying to understand how this disruption occurred.
MIRROR DISTORTIONAccording to research published by CERN in March 2025 and now confirmed by the peer-reviewed scientific journal Nature, there is a small but crucial difference in the operation of the fundamental laws of nature between matter and antimatter. This difference is called a violation of charge-parity (CP) symmetry.
Normally, particles and their antimatter counterparts have the same mass but opposite charge. However, when these particles transform into other particles—for example, during radioactive decay—this symmetry can be broken. As a result, some particles and their antimatter counterparts may decay at different rates.
SYMMETRY VIOLATION OBSERVEDThis type of CP symmetry violation has been seen before in particles called mesons, but this is the first time such an observation has been made for baryons (like protons and neutrons), the fundamental building blocks of matter.
The Large Hadron Collider has produced large numbers of baryons, composed of both matter and antimatter, and studied their decay, demonstrating how these particles violate symmetry. The research shows that baryons produce slightly more matter than antimatter as they decay.
While this observation is a crucial step toward explaining the abundance of matter in the universe, the difference identified in the study is still minuscule compared to astronomical observations. This means that the current physics theory, the Standard Model, cannot fully explain this asymmetry.
Therefore, scientists think that there are more sources of CP violation that allow matter to prevail over antimatter, and these have not yet been discovered.
ntv
