Antiparticles are fundamental components of particle physics, existing for every type of particle with the same mass but opposite charges. Their existence is confirmed through observations in particle accelerators, cosmic ray interactions, and nuclear decays. Antiparticles can be created by destroying a particle of the same charge or simultaneously generating both a particle and its antiparticle, as seen in experiments at the Large Hadron Collider at CERN. Understanding antiparticles is essential for grasping the principles of charge conservation and quantum mechanics.
PREREQUISITESStudents and researchers in physics, particularly those focusing on particle physics, quantum mechanics, and anyone interested in the fundamental aspects of matter and antimatter.
2.In particle physics, every type of particle has an associated antiparticle with the same mass but with opposite physical charges (such as electric charge).
It is not prefect and the wording might be a bit sloppy, but it is a good source to get the basics which you asked for. And of course we know they exist, because we've measured them by their properties.Because charge is conserved, it is not possible to create an antiparticle without either destroying another particle of the same charge (as is for instance the case when antiparticles are produced naturally via beta decay or the collision of cosmic rays with Earth's atmosphere), or by the simultaneous creation of both a particle and its antiparticle, which can occur in particle accelerators such as the Large Hadron Collider at CERN.