Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

Electroweak symmetry breaking is manifested by the nonzero masses of the weak W and Z bosons, and requires the existence of a Higgs boson or some other yet unseen mechanism. To solve the problem of flavor.

  • why there are six quarks and six leptons forming three families?

  • why these particles exhibit such a peculiar pattern of masses and mixing?

share|improve this question
    
Related: physics.stackexchange.com/q/2051/2451 –  Qmechanic Sep 14 '12 at 16:31
2  
The Higgs is seen now, and why is it peculiar? Are you asking why 3 generations? Or why the structure of the reps and the charges. If it's the latter, you should look up SU(5) or SO(10) GUT. For the masses and mixing, they aren't too unnatural, except the electron mass and the off-diagonal CKM elements, and these can be made natural in string theory. –  Ron Maimon Sep 14 '12 at 19:34
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.