Roger Highfield has gone out and asked several theorists for LHC predictions, with the following results.
My hunch is that there’s a better than evens chance that supersymmetry will show up at the LHC…
I would be surprised if supersymmetry were found. I supported the idea when it was first suggested, but I’ve gradually lost confidence in it, though I might well be wrong. To be sure, if the LHC finds nothing to support supersymmetry, its advocates will just make excuses and keep using it. As for string theory, it’s all mumbo jumbo, with no connection with experiment.
Some of my intuition comes from string theory, an appealing candidate for a theory of all the forces of nature. According to many – perhaps most – versions of string theory, supersymmetry does not hold good at the energies probed by the LHC, so its discovery might require further explanation from this point of view.
(it appears that the excuses Veltman is predicting are already in place…)
…(with 60% probability) supersymmetry…
Many physicists also think it likely that evidence will be found for supersymmetry, strings, or new dimensions — but I disagree.
About the Higgs:
I’ve already bet a year’s salary they will find the Higgs particle.
(anyone know who took the other side of that bet?)
It would not surprise me if the experimenters don’t find the Higgs particle. I don’t trust the theory behind it. But if it does appear to show up, it will be crucial to check that it behaves as the theory predicts.
I’d be extremely puzzled if they don’t find the Higgs…
My hunch is that a Higgs boson will be found (95% probability)…
The most likely result from the LHC is detection of a single Higgs particle.
John March-Russell goes all-out:
…our quest for a source of almost unlimited climate-friendly energy might be answered by the creation of exotic unstable, but long-lived, charged particles… It might also turn out that the number of space and time dimensions is ambiguous…