antimatter is an established concept in physics and has been experimentally observed. Antimatter particles, such as antiprotons and positrons (antielectrons), have been created and detected in laboratory experiments.
Antimatter is routinely produced in particle accelerators, such as the Large Hadron Collider (LHC) at CERN, where collisions of high-energy particles can generate antimatter particles. These experiments provide evidence for the existence of antimatter and allow scientists to study its properties.
However, it's important to note that antimatter is still relatively rare in the universe compared to regular matter. It is challenging to produce and store significant quantities of antimatter due to technical and practical limitations. The production and storage of antimatter require complex and energy-intensive processes.
The study of antimatter is an active area of research, and ongoing experiments aim to investigate its properties and behavior further. Scientists continue to explore antimatter to better understand its role in the universe and its potential applications in fields such as particle physics, medical imaging, and energy production. Please note that there may have been advancements or new discoveries in the field since I'm not interested in that topic as much as i used to and my answer might be a bit outdated, so it's always a good idea to consult up-to-date scientific sources for the latest information on the status of antimatter research.