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Big Bang Machine's first run created more particles than theory predicted | The results from the highest-energy particle experiments carried out in December at the Large Hadron Collider (LHC), popularly known as the 'Big Bang Machine', have been published, which indicates that the run created more particles than theory predicted. According to BBC News,
scientists from the LHC's Compact Muon Solenoid detector has now totted up all
of the resulting particle interactions, and wrote about the results in the Journal
of High Energy Physics. However, the glut of particles should not affect results
as the experiment runs to even higher energies this year. The LHC is designed
to smash together particles and atoms circling its 27km-tunnel in a bid to find
evidence of further particles that underpin the field of physics as it is currently
formulated. The December announcement of particle beam energies in excess of one
trillion electron volts made the LHC the world's highest-energy particle accelerator.
That makes the new results a unique look at the field of high-energy physics.
The experiments, smashing protons into each other, produced a few more subatomic
particles known as pions and kaons than the team was expecting. "The level is
somewhat higher than the most popular models had predicted, and it looks like
it is going to increase with energy a little bit more steeply than we expected,"
said Roland Gunter, a CMS collaboration scientist from the Massachusetts Institute
of Technology in the US. "I think it's not going to be a problem, but it is one
of the many things that we need to know as we move toward searches for the most
rare particles and new physics," he told BBC News. He added that the "extra" particles
will be more of an issue when, later in 2010, the LHC dedicates itself to collisions
involving ions of the element lead, a markedly heavier pair of targets resulting
in an even larger array of particles on impact. "We'll know much more about that
in two or three months when we look at the next higher energy of 7 TeV (trillion
electron volts)," he said. |
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