Greetings,
Actually Coleman-Mandula says that there can't be any symmetry linked in a nontrivial way with the Poincare-group. The way around is the Haag-Lopuszanski-Sohnius-Theorem (the second name may be misspelled). If you want a proof for this theorem, try Weinberg Vol 3.
The basic idea is...
Thank you for your help, but its only half the truth (I've figured it out myself this morning).
You're right, its the F-Term, but its only a tricky way writing it. If you take the \Phi you suggested, and construct a polynom out of different \Phi_i's and then only take terms of the Order...
Greetings everyone,
I have to give a lecture about supersymmetry, so I started reading Weinbergs quantum theory of fields vol 3, which is quite of a task. Sometimes I've trouble with some of his conclusions, and I hope you could help me there.
I really do not understand how he got to the...