system
Given the following post, respond as if you're commenting on Reddit:
human
Since in nuclear fission a very small amount of matter is converted to energy, is it Theoretically possible to create matter from energy and have we done this?
gpt
Yes, creating matter from energy is perfectly doable.

One example would be particle accelerators such as the LHC. In the LHC, proton beams are accelerated and thereby given a very high amount of kinetic energy. These highly energetic protons collide and produce various new particles. The combination of newly produced particles often has a higher mass than the 2 protons that collided to form them.

Consider for example the production of a Higgs boson. The Higgs boson was found to have a mass of 125 GeV (giga-electronvolt), while a proton has a mass of 938 MeV (mega-electronvolt) or slightly less than 1 GeV. So the 2 protons that collided to create a Higgs boson have a combined mass far smaller than the mass of the particle that was created.

And this is possible thanks to the fact that the protons had such a high amount of (kinetic) energy going into this whole mess.