Recent content by so2so3su2

  1. S

    Graduate A Problem about representations of group and particles

    Got it, thank you.
  2. S

    Graduate A Problem about representations of group and particles

    fzero, Thank you. I got the idea. But I don't think the typo is there since they never introduce a traceless constraint. The other thing is why we can do that. Here by that I mean we divide the SO(D) into 3 parts. Can I say g11,g22 part is a representation of SO(2) g1a, g2a part is a vector...
  3. S

    Graduate A Problem about representations of group and particles

    I'm reading a paper these days, How can I get 2.28? It seems for a D-dim SO(2) gauge field, we have spin2, spin1, as well as spin0 particles?