Monday, February 08, 2010 ... Deutsch/Español/Related posts from blogosphere

New particle masses in heterotic orbifolds

I still consider the heterotic compactifications to be the most natural - and most likely - realizations of the real world within string theory.

The natural incorporation of the gauge group into the E8, the gauge coupling unification, a natural setup to explain the three families, and the uniform "field-theoretical" realization of all the known low-energy fields just "smells" right.

Ben Dundee, Stuart Raby, Alexander Westphal
have studied the moduli stabilization and SUSY breaking in heterotic orbifold string models. A superpotential in the hidden sector breaks SUSY and all moduli are stabilized by supergravity effects.

The models have an MSSM spectrum with all the required realistic properties and a chance for a very small cosmological constant - relatively to the heavy stringy AdS starting point. But what I find amazing is their ability to calculate the masses of all new particles. Various superpartners go from 100 GeV to tens of TeV and a large portion of them should be detectable at the LHC.



Most of the masses are around 1 TeV. But look how amazingly explicit and accurate the models are concerning their predictions of pretty much anything. Click to zoom in.

Add to del.icio.us Digg this Add to reddit

snail feedback (0) :