Tag: geneva

Hadron Collider breakthrough as beams collide

Posted by Nexus – 30/03/2010

[via cnn.com]

Scientists at the Large Hadron Collider managed to make two proton beams collide at high energy Tuesday, marking a “new territory” in physics, according to CERN, the European Organization for Nuclear Research.

The $10 billion research tool has been accelerating the beams since November in the LHC’s 17-mile tunnel on the border of Switzerland and France.

The beams have routinely been circulating at 3.5 TeV, or teraelectron volts, the highest energy achieved at the LHC so far, according to CERN, the European Organization for Nuclear Research.

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US and Russia ‘near’ new nuclear arms treaty

Posted by Nexus – 14/03/2010

[via bbc.co.uk]

The Start treaty led to huge reductions in the Russian and US nuclear arsenals.

Russia and the US have both said it should soon be possible to conclude a new nuclear disarmament treaty.

Officials in Moscow and Washington said US President Barack Obama and Russian President Dmitry Medvedev had a “good conversation” reviewing negotiations.

The two countries are trying to replace the 1991 Strategic Arms Reduction Treaty, which expired last December.

The US says it has more than 2,000 nuclear weapons, while Russia is believed to have nearly 3,000.

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Record-breaking collisions

Posted by Nexus – 07/02/2010

[via mit.edu]

Workers examine a new Quench Protection System at CERN in January. Image courtesy of CERN

In December, the Large Hadron Collider, the world’s largest particle accelerator, shattered the world record for highest energy particle collisions.

This week, team led by researchers from MIT, CERN and the KFKI Research Institute for Particle and Nuclear Physics in Budapest, Hungary, completed work on the first scientific paper analyzing the results of those collisions. Its findings show that the collisions produced an unexpectedly high number of particles called mesons — a factor that will have to be taken into account when physicists start looking for more rarer particles and for the theorized Higgs boson.

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Large Hadron Collider to jump to maximum energy

Posted by Nexus – 03/02/2010

[via newscientist.com]

The Large Hadron Collider is going to skip medium-energy proton collisions, jumping straight to its maximum energy in 2013, after it finishes collecting lower-energy data and has its circuitry upgraded.

The particle accelerator, located outside Geneva, Switzerland, has recovered from its 2008 accident. And in 2009 it broke the world record for particle collision energy when its two oppositely directed proton beams each reached 1.18 TeV, for a total energy of 2.36 TeV.

That made it slightly more powerful than its US competitor, Fermilab, which has been colliding particle beams with energies of 1 TeV, adding up to a total energy of 2 TeV.

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