Main Question or Discussion Point
Can someone please tell me the history of high-energy electron-positron collisions? In specific when was it discovered that such collisions can create hadrons? Any information would be useful. Thanks.
The hadron pair production e-+e+ → h-+h+ can be considered and calculated as a cross channel of the known elastic electron scattering off hadrons e-+h+ → e-+h+.That does not answer your exact question - when was it discovered that you could make hadrons in electron-positron collisions - because, even before these colliders went online, physicists knew that you could produce pion pairs that way, and they were even able to estimate production cross sections. How they got there, I don't know, maybe it involved observing cosmic ray positrons somehow.
The hadron pair production e-+e+ → h-+h+ can be considered and calculated as a cross channel of the known elastic electron scattering off hadrons e-+h+ → e-+h+.
Theoretically yes, but electric fields required are immense. Even electron-positron pair production via Schwinger Effect has not been observed yet (to my knowledge) and energies required for pp are three orders of magnitude higher. There is potential to achieve those effects with high-powered lasers.Thanks for your quick reply guys. A few more questions: In addition to creation via collisions are you aware of any other way that hadrons come about. For instance do charged proton-anti-proton pairs appear, theoretically, in electric fields via the Schwinger Effect?