[SKRIVA] Strängteorin fallerar LHC-försök
- From: Ahrvid Engholm <ahrvid@xxxxxxxxxxx>
- To: <skriva@xxxxxxxxxxxxx>, <sverifandom@xxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 20 Dec 2010 10:34:14 +0100
Strängteorin(erna?) är en av de ledande teorierna om Livet, Universum och
Allting. Men tydligen motsägs den iaf hittills av försökern med CERN:s
superkollidator LHC:
http://io9.com/5714210/string-theory-fails-first-major-experimental-test
"A few years ago, a group of physicists came up with an ingenious way to test
for the existence of hidden dimensions, a key aspect of many string theory
models. Basically, the experiment rests upon the existence of micro black
holes, objects tinier than an atomic nucleus that could theoretically be
produced by smashing together a pair of protons at tremendously high velocities.
This micro black hole would be very unstable and quickly decay, releasing lots
of different subatomic particles. The physicists figured out the specific
combinations of particles that would be created if the universe has 10, 11, or
even more dimensions. The hope was that the Large Hadron Collider would be able
to produce the massive energies required to create these micro black holes.
Well, they ran the experiment, and the results are less than encouraging. The
LHC has completed an extensive search for these objects in high-energy proton
collisions, and no evidence at all turned up for micro black holes between 3.5
and 4.5 tera-electron-volts. That's a massive energy level and pretty much the
upper limit of what we can currently test. This more or less rules out versions
of string theory that includes micro black holes at those energies."
--Ahrvid
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