(Solved): (6) What are the initial and final state particles in the processes depicted in the Feynman diagrams ...

(6) What are the initial and final state particles in the processes depicted in the Feynman diagrams below? As usual, time increases from left to right. A B) c) D) Rank the diagrams in order of decreasing probability (some may have the same probability - if that is the case, state it clearly).