Leading-order Feynman diagram for the process\(e^+e^-\rightarrow \mu ^+\mu ^-\). An electron–positron pair annihilates into a muon–antimuon pair via a virtual photon\(\gamma \). Throughout this paper, we define the external lines on the left (right) of the diagram to denote the...
lt is concluded that at above 0.0 Bev, the BocealettiGualdi diagram (D. Bocealetti and C. Gualdi. Nuovo cimento, 18: 895(1960)) becomes of primary importance. Evidenee for the Drell effect should insiead be expeuted in favorable kineinatical conditions. (L.N.N.)...
goldstone,propagating,countertermandpropagator. The first three attributes indicate how to draw the particle propagator in a Feynman diagram (the possible self-explanatory values
opportunities offered by FDs. In this part, it was asked, for example, how an appropriate instruction would look like and how students could benefit from learning about Feynman diagrams. In the end, the experts were asked how they would describe a particular Feynman diagram to a high school ...