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dseabroo
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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.
hamster143 said: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.
Bob_for_short said: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+.
Bob_for_short.
dseabroo said: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?
The purpose of studying the history of high energy electron-positron collisions is to understand the fundamental particles and their interactions at high energy scales. This allows us to test and refine our theories of particle physics, and to gain insight into the fundamental forces and structures of the universe.
The first high energy electron-positron collisions were observed in 1964 at the Stanford Linear Accelerator Center (SLAC) in California. This was made possible by the development of high-energy particle accelerators, which allowed for the creation of high energy collisions between electrons and positrons.
High energy electron-positron collisions are unique because they involve the annihilation of matter and antimatter particles. This results in the creation of new particles and the release of large amounts of energy, which can be studied and analyzed by scientists to understand the underlying processes and interactions.
High energy electron-positron collisions have led to many important discoveries in particle physics, including the existence of quarks, the discovery of the Higgs boson, and the confirmation of the Standard Model of particle physics. These collisions have also provided evidence for the existence of dark matter and other particles predicted by theoretical models.
Advancements in technology and equipment have allowed for higher energy collisions to be achieved, leading to more precise and detailed observations of particle interactions. This has also allowed for the development of new detectors and techniques to analyze the data, further advancing our understanding of high energy electron-positron collisions and particle physics as a whole.