Lecture TODAY (7/11)

I just woke up with a bad cold and won't be able to talk (let alone lecture) today. 

However, there is too much material left to simply cancel this lecture. The plan for today was to derive the vertex rules for gauge-boson self-interactions. This is basically an application of what we learned before, so I simply copied my lecture notes for you to have a detailed look instead.

Ideally, you'd just use the time of the lecture to go through this; if you do it in class, furthermore, you have the advantage of being able to discuss together. As usual, the book provides useful complementary information. Also, feel encouraged to open a PIAZZA thread about these 3- and 4-vertices; most likely I'll be able to react (almost) in real time during the lecture time...