1123581321 Posted April 17, 2010 Share Posted April 17, 2010 hi, Was wondering, in the midst of M-theory, why there is predicted sparticles. Being like partners for the other normal particles and why they are or need to be heavier than their partners. Is it like a case of (required) equilibrium ? Link to comment Share on other sites More sharing options...
ajb Posted April 17, 2010 Share Posted April 17, 2010 Really sparticles are a generic feature of a supersymmetric point-particle theory, in the context of M-theory these would appear as a low energy limit. (First we we would have a supersymmetric string theory and then a supersymmetric point-particle theory) The idea of (N=1) SUSY is that all the known particles and field, that is fermions and bosons respectively have partners that are shifted in spin by 1/2. These are the sparticles. So, for example the electron which is a fermion would have a bosonic partner called the selectron. The bosonic photon has the fermionic partner the photino. And so on... Link to comment Share on other sites More sharing options...
1123581321 Posted April 18, 2010 Author Share Posted April 18, 2010 hi, I'm sorry, in the context of what you were saying, what is a 'supersymmetric point particle theory'. Link to comment Share on other sites More sharing options...
ajb Posted April 18, 2010 Share Posted April 18, 2010 Think supersymmetric quantum field theory rather than string theory or branes. Link to comment Share on other sites More sharing options...
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