Symmetry breaking: what is the subgroup left?

  1. Hi....

    I have studied the standard model of particle physics and know that spontaneous symmetry breaking by a vev breaks SU(2)xU(1) to a U(1). How do we know to what group a vev will break the original group?

    I have heard of Dynkin diagrams. Are they only for continuous groups? Is there any other method for discrete groups?

    Any reference given will be appreciated.
     
  2. jcsd
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