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Located beneath the Franco-Swiss border, the world's largest and most power particle accelerator, the Large Hadron Collider (LHC), recorded proton beam collision for the first time yesterday.  (Source: CERN)

The observed aftermath likely resembled this color release from a simulated collision.  (Source: CERN)

The ATLAS detector was the first to spot a beam collision yesterday.  (Source: Scientific American)
After a rocky start the LHC is getting serious, looks to soon pack "7 mosquitoes" worth of energy into a single proton

The Large Hadron Collider (LHC) is set to unlock complex mysteries of the universe, such as the never-before-observed Higgs boson, dark matter, antimatter, and more.  However, before much of that landmark work can commence, the particle accelerator needs to be able to complete collisions and ramp up to higher energy collisions.

Last week it was announced that the particle beams had fully circulated around the LHC for the first time in over a year.  The accelerator had been offline until this August due to damage.  A bad electrical connection had caused extensive damage and forced a shutdown last Fall, and intensive repair process was delayed by the winter.

With repairs at last complete, and beams circulated, this week researchers decided to bump the testing up to collisions. 

To gain a proper perspective on these collisions, it's first important to understand how they work.  Housed 100 meters under the Franco-Swiss border, the LHC sends proton beams hurtling in opposite directions down a 17-mile-long track at close to the speed of light.  The beams are bent in the proper direction by over 1,200 massive superconducting magnets. The beams cross at allotted spots, and the protons contain within collide.  The results are captured by four advanced detectors bordering the crossing points -- ATLAS, the Compact Muon Solenoid (CMS), Alice and LHCb.  Atlas and CMS are general purpose detectors, while the remaining two are special purpose detectors.

On Monday, coinciding with a CERN press conference, at 1322 GMT the Atlas detector became the accelerator's first to record a collision.  The Alice and LHCb recorded collisions at 1600 GMT.  And with a bit of tweaking collisions were recorded by the Compact Muon Solenoid detector at 1800 GMT. 
Fabiola Gianotti, spokesperson for the Atlas scientific team comments, "This is great news, the start of a fantastic era of physics and hopefully discoveries after 20 years' work by the international community."

CERN's director-general Rolf Heuer comments, "It's a great achievement to have come this far in so short a time.  But we need to keep a sense of perspective - there's still much to do before we can start the LHC physics programme."

The collider already offers an extreme environment, with particles moving at close to the speed of light and temperatures of 1.9 degrees Kelvin.  While some might wonder why those temperatures are necessary, they're designed to simulate conditions at the time of the Big Bang, the cosmological event that created the universe as we know it. 

However, in order to get closer to these conditions, the energy of the beams will need to be bumped up from low-to-moderate power to 7 TeV (14 TeV combined).  A flying mosquito has approximately 1 TeV of kinetic energy.  While "14 mosquitos" worth of combined energy may not seem like much, its a massive achievement for man to pack that much energy into a pair of protons.



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RE: Hoping It Works
By Octoberblue on 11/24/2009 12:47:22 PM , Rating: 2
Well, the problem I have with that though is why would it? I mean, preventing the LHC from detecting it seems to me a very specific and purposeful, complex action. I may be missing something I'll admit, but that idea seems to imply a sentient particle that cares one way or the other whether we detect it. I can't quite fathom that.


RE: Hoping It Works
By JediJeb on 11/24/2009 1:27:28 PM , Rating: 2
I don't think the meaning there was that it would go back in time on purpose, but that the odds were that it could, and if only one was produced what is the probability that it will remain in the current time frame to be detected when expected.


RE: Hoping It Works
By MozeeToby on 11/24/2009 2:07:42 PM , Rating: 2
The theory is ussually thrown around under the assumption that a naked Higgs would destroy the universe (I don't know why that would be the case but I digress). In which case the Higgs would go back and prevent it's own creation. Or, depending on your personal interpretation of quantum physics, causing the only surviving universe to be the one where the LHC wasn't turned on (which, of course, would be the only universe we exist in to care about).


RE: Hoping It Works
By SpaceJumper on 11/24/2009 7:50:41 PM , Rating: 2
During the two mosquitoes’ collision, two things will happen, time and the amount of energy that is being released. The mosquitoes that release a huge amount of energy will slow down time, and the mosquitoes that do not release the energy will jump forward in time. It will be interesting to see what will happen and hope that nothing bad will happen. When the time is split into two halves, disequilibrium of time takes over and a small universe could be created in the LHC tube.


RE: Hoping It Works
By AnnihilatorX on 11/25/2009 6:59:54 PM , Rating: 2
There's a reason it's nicknamed the God particle like it or not :P


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