What are the experimental predictions of the various string theories?
Have any of those been experimentally verified so far?
Is belief in string theory paying any rent?
Well, we should find supersymmetry. Beyond that...
Some would say we should have found supersymmetry. (But I haven’t looked into this stuff in detail myself yet.)
Yes, results form the LHC have been disappointing, so far. This talk pretty much summarized the official results up to a few months ago, and they’re not encouraging. We’re pushing the boundaries of the mass region implied by the Higgs mass hierarchy problem. What’s confusing is that we would expect to find something in that region, even if it’s not SUSY, but up to now nothing popped up.