Hi Alex;
A recent Physicsworld article gives an
update on things at CERN LHC.
In the Section on Supersymmetry:
Quote:
But earlier this month CMS reported that it had found nothing new so far, ruling out supersymmetric particles with masses of less than about 0.5 TeV/c{squared}. And in November the experiment reported no signs of long-lived supersymmetric gluons (gluinos), which should arise if a more recent take on SUSY called split-supersymmetry is correct.
CMS's sister experiment, ATLAS, is expected to report on its own searches for such exotic new particles in the next few weeks, although it has already ruled out quark sub-structure and exotic particles lighter than 1.26TeV/c{squared}. And with the LHC due to restart next month after its winter shutdown and accumulate data at an even higher rate – perhaps also at a higher energy – decades of theoretical research into physics beyond the Standard Model (along with, of course, the mechanism that gives elementary particles their mass) will soon be put squarely on the line.
"Given that the LHC is just starting to dig into the territory relevant for the hierarchy problem, it's hardly surprising that the machine isn't turning up evidence for anything new in the very first analyses of the data collected at half its ultimate energy," says Arkani-Hamed. "But even if no extra dimensions are found, that would be perfectly fine by me – after all, we're in the truth business!"
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First time I've seen a scientist say they were in the truth business.
(Mind you, I think he's speaking in another sense of the word).
This would suggest that no matter what they find, the Standard Particle Model & appropriate theory will be adjusted accordingly.
(At least as far as Arkani-Hamed is concerned).
Cheers