Review of Electron - Positron Physics at {PETRA}
Mar, 1981171 pages
Published in:
- Rev.Mod.Phys. 54 (1982) 325
Report number:
- DESY-81-012
Citations per year
Abstract: (APS)
A review is given of the experimental investigation of high-energy e+e− interactions at PETRA, the electronpositron colliding beam accelerator at DESY in Hamburg, Germany. The energy of the machine is such that the strong, electromagnetic, and weak interactions start to play a role in the processes which can be studied. Results are presented on tests of quantum electrodynamics studying e+e−, μ+μ−, and τ+τ−. The fermion pair production processes e+e−→FF¯, where the FF¯ pair stands for either a lepton pair (e+e−, μ+μ−, and τ+τ−) or a quark-antiquark pair, are investigated to study the effects of the Z∘ exchange. The measurements of R, the ratio of hadronic to pointlike muon pair cross section, the search for new quark flavors, and other new particles are reviewed. Finally the discovery of three-jet events arising from the radiation of hard noncollinear gluons as predicted by quantum chromodynamics and the determinations of the strong coupling constant αs are discussed.- REVIEW: EXPERIMENTAL RESULTS
- ELECTRON POSITRON: ANNIHILATION
- ANNIHILATION: ELECTRON POSITRON
- ELECTRON POSITRON: COLLIDING BEAMS
- COLLIDING BEAMS: ELECTRON POSITRON
- ELECTRON POSITRON: INELASTIC SCATTERING
- INELASTIC SCATTERING: ELECTRON POSITRON
- ELECTRON POSITRON: ELASTIC SCATTERING
- ELASTIC SCATTERING: ELECTRON POSITRON
- DESY PETRA STOR
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