Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Very simple question on SM

  1. Aug 23, 2008 #1
    Dear All,
    I dont understand how/why Halzen Martin use J_em J_3 and introduced J_Y currents to build SU(2)*U(1) theory....can anyone advise something...

    thank you
  2. jcsd
  3. Aug 23, 2008 #2
    I would suspect perhaps because these are the Casimir operators of the group? Just a wild guess, I don't have a copy of Halzen Martin's book or work or am I able to find a relevant quote :(
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook