I was just wondering, what would happen when a W+ boson and a W- boson collide?
Since they are antiparticles of each other they would annihilate.
I thought they form a Z particle. Since the W are themselves affected of the weak force.
To the best of my knowledge they would annihilate each other. However, I have not looked into details, so it might be that the W and Z bosons are different somehow. I have simply never seen anything that said that.
Take a look at
The lagrangian terms with a W+ W- and something else are the simplest vertices involving that collision.
I see W+ W- >>>>
AA ZZ AZ
Higgs terms, etc
Where A = photon, Z = Z boson and WW = another W+ W- pair.
Separate names with a comma.