Hallo, Dear particle physist, Despite I am major in biophysics, the particle physics looks attractive to me... So I just used Atlantis to check some experiments result from internet... Although I can find some resultant particles. I still cannot understand how to draw a Feynman diagram for them, because I have not learned the mechanism about it. If it is possible, could you please give me some hints to do it? (In the attachment you can find those visualized data.) For example, in the first picture (No.2 in the Data): I found there are electrons and muons and hadrons (do not know whether neutron or proton, they are in the same path as muons.), what is the Feynman diagram to describe this process? Thx.