No experiment measured any difference.Does antimatter has more mass than matter?
That could take a while. Gravity is hard to see in particle physics as it is extremely weak.What happened to this experiment?
mfb said:No experiment measured any difference.
A difference between the masses of particles and antiparticles would ruin significant parts of the Standard Model as it would violate CPT invariance.
That could take a while. Gravity is hard to see in particle physics as it is extremely weak.
Vanadium 50 said:One will never know that two particles (any two) will have the "EXACT same mass". We can only set limits on the difference.
If there is any difference at all, it has to be at the level of the particles itself, of the order of 10-27 gram.And also that the difference may be significant? Like 10^-6 to 10^-9 gram.
mfb said:You have to distinguish mass measurements from gravity measurements here.
Mass measurements are common in particle physics - it is a measurement of the rest energy of the particle. Those are very precise, especially for stable particles and antiparticles. Any difference would violate CPT invariance (quantum-mechanical statement)
Gravity measurements measure the influence of gravity. Those are tricky in particle physics. Any difference would be a different gravitational acceleration and violate the equivalence principle (from General Relativity).
If there is any difference at all, it has to be at the level of the particles itself, of the order of 10-27 gram.
mfb said:No experiment measured any difference.
Antimatter is a type of matter composed of particles that have the same mass as regular matter particles, but with opposite charges. For example, the antiparticle of an electron is a positron, which has the same mass as an electron but a positive charge instead of a negative charge.
No, antimatter and matter have the same mass. For example, an electron and a positron have the same mass, but opposite charges. This is known as mass-energy equivalence, as described by Einstein's famous equation E=mc^2.
This is still a topic of research and debate among scientists. One theory is that during the Big Bang, there was a slight imbalance in the creation of matter and antimatter, leading to the dominance of matter in the universe. Another theory suggests that antimatter may be present in other areas of the universe, but we have not yet been able to detect it.
Yes, scientists are able to create and study antimatter in laboratory settings. This is done using particle accelerators, which can produce high-energy collisions between particles and their antiparticles. However, antimatter is difficult and expensive to produce, so it is not commonly used in experiments.
Antimatter has the potential to be used as a powerful and efficient source of energy. When combined with matter, antimatter particles annihilate each other, releasing a large amount of energy. However, the high cost and difficulty in producing antimatter make it currently impractical for use in technology. It is also being studied for potential use in medical imaging and cancer treatment, but more research is needed in this area.