CERN

MoEDAL becomes LHC’s seventh experiment

As reported from CERN 12th May 2010

The MoEDAL experiement inside the LHCb VELO cavern.

MoEDAL collaboration.

MoEDAL is the newest of the experiments that will investigate particle collisions at the Large Hadron Collider. Approved by the CERN Research Board in December, the MoEDAL experiment will search for very specific exotic particles.

The experiment is relatively small, cheap and quick to install but its physics potential is huge. The MoEDAL detector will consist of layers of plastic attached to the walls and ceiling of the cavern that houses the VELO detector of the LHCb experiment. Physicists will look for tell-tale collinear ‘etch-pits’ created by a stable particle such as a magnetic monopole or a massive stable supersymmetric particle crossing through the plastic.

The international MoEDAL collaboration, made up of physicists from Canada, CERN, the Czech Republic, Germany, Italy, Romania and the US, have already installed the first square metre of plastic in the LHCb cavern and are preparing to deploy the rest of the detector during the next planned long shutdown of the LHC, which will start late in 2011.

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Friday, May 28th, 2010 CERN Comments Off on MoEDAL becomes LHC’s seventh experiment

Large Hadron Collider (LHC)

The LHC is back up and running- sorta! It may take 1-3 years (can you say 2012?) before we know some of the critical information that the LHC, in Cern, can tell us. Evidence of supersymmetry, the idea that every particle has a “super partner” with similar properties in a quantum dimension (according to some physics theories, there are hidden dimensions in the universe), could be discovered one way or the other before 2012.

“The LHC is back,” the European Organization for Nuclear Research announced triumphantly Friday, as the world’s largest particle accelerator resumed operation more than a year after an electrical failure shut it down.

Restarting the Large Hadron Collider — the $10 billion research tool’s full name — has been “a herculean effort,” CERN’s director for accelerators, Steve Myers, said in a statement announcing the success. Experiments at the LHC may help answer fundamental questions such as why Albert Einstein’s theory of relativity — which describes the world on a large scale — doesn’t jibe with quantum mechanics, which deals with matter far too small to see.

Of course, quantum physics is standing most scientists on their heads these days. 🙂

Physicists established a circulating proton beam in the LHC’s 17-mile tunnel at 10 p.m. (4 p.m. ET) Friday, CERN said, a critical step towards getting results from the accelerator. “It’s great to see beam circulating in the LHC again,” said CERN Director General Rolf Heuer. “We’ve still got some way to go before physics can begin, but with this milestone we’re well on the way.”

Located underground on the border of Switzerland and France, the LHC has been inching towards operation since the summer. It reached its operating temperature — 271 degrees below zero Celsius — on October 8 and particles were injected on October 23. Now that a beam is circulating, the next step is low-energy collisions, which should begin in about a week, CERN said. High-energy collisions will follow next year.

Might we create a “black hole” with this monster? Doubtful, but then, who knows anything for sure these days?

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Tuesday, May 18th, 2010 CERN 1 Comment

Cern LHC the Large Hadron Collider is a success

With over three hours of stable and colliding beams, the Large Hadron Collier image of the day

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Tuesday, March 30th, 2010 Articles Comments Off on Cern LHC the Large Hadron Collider is a success

LHC sets new record – accelerates beam to 3.5 TeV

CERNGeneva, 19 March 2010. At just after 5:20 this morning, two 3.5 TeV proton beams successfully circulated in the Large Hadron Collider for the first time. This is the highest energy yet achieved in a particle accelerator, and an important step on the way to the start of the LHC research programme. The first attempt to collide beams at 7 TeV (3.5 TeV per beam) will follow on a date to be announced in the near future.

“Getting the beams to 3.5 TeV is testimony to the soundness of the LHC’s overall design, and the improvements we’ve made since the breakdown in September 2008,” explained CERN’s Director for Accelerators and Technology, Steve Myers. “And it’s a great credit to the patience and dedication of the LHC team.”

Read the full article here

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Friday, March 19th, 2010 Articles Comments Off on LHC sets new record – accelerates beam to 3.5 TeV

The Voltaire Lecture 2010 by Professor Brian Cox

Professor Brian Cox speaks on “The value of Big Science: CERN, the LHC and the exploration of the Universe”

6th April 2010

Chaired by Polly Toynbee, President of the British Humanist Association.

Professor Brian Cox holds a chair in particle physics at the University of Manchester and works on the ATLAS experiment at the Large Hadron Collider, CERN near Geneva.

Full details and tickets available here

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Friday, March 12th, 2010 Articles Comments Off on The Voltaire Lecture 2010 by Professor Brian Cox

The LHC 2010 – 2011

The Large Hadron Collider overview for the next 18 to 24 months with start of physics at 7 TeV by Rolf Heuer, Director General of CERN

read the full article here

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Wednesday, March 10th, 2010 Articles Comments Off on The LHC 2010 – 2011

European Organization For Nuclear Research – What is actually the Hadron collider is all about ?

I dont understand how the conditions of big bang can be created by colliding two particles ??
Wont it result in fatal explosion??
What are the particles that are being collided??
What will be ultimately discovered and what will the significance of the discovery??
What are the hazards we face because of the collider ??
When will the experiment end ??
Who is financing the research ??

1. Energy density is the key – the collisions reach energy densities that existed right after the Big Bang. The higher the energy density, the closer you are to the energy densities right after the Big Bang. Depending on energy density, the more different reactions happen after the collision. The LHC does not create a second Big Bang (for that you would need MUCH more energy, since the age of superinflation is not even reached yet in terms of energy density), it only experimentally recreates the conditions afterwards.
2. No, not even if they do an emergency shutdown. Such a shutdown would project the energy of a 500 kg bomb into two dead-end sections of the accelerator ring, that are especially designed and cooled for absorbing the energy stored in the beams.
3. Protons and eventually lead ions.
4. No idea. I am pretty bad in predicting the future. But it’s first purpose is to verify experimental data from other old particle accelerators, that was beyond the measurement accuracy of these. The LHC has much better sensors as older accelerators.
5. Unless you work for the CERN, there is no hazard. We have detected 150,000 protons with tiny detectors in 15 years, that came from space and have up to 300,000,000 times the energy of the protons inside the LHC. Such protons bombard Earth for billions of years, without causing trouble.
6. In about 15-20 years, after some upgrades.
7. The CERN, the European Organization for Nuclear Research. It is funded from taxes of almost all European countries, the top three are Germany, UK and France.The LHC construction had been paid by the European countries + USA, Japan & Canada directly, the CERN is only responsible for the research operations – CERN are the guys who invented the Internet as you know it, at that time for exchanging research data in the highly decentralized CERN (the experiments in CERN are independent and have no central management above them)

The Large Hadron Collider (LHC) is the world’s largest and highest-energy particle accelerator, intended to collide opposing particle beams of either protons at an energy of 7 TeV per particle or lead nuclei at an energy of 574 TeV per nucleus. It is expected that it will address the most fundamental questions of physics, which seem to block further progress in understanding the deepest laws of nature. The LHC lies in a tunnel 27 kilometres (17 mi) in circumference, as much as 175 metres (570 ft) beneath the Franco-Swiss border near Geneva, Switzerland.

The Large Hadron Collider was built by the European Organization for Nuclear Research (CERN) with the intention of testing various predictions of high-energy physics, including the existence of the hypothesized Higgs boson and of the large family of new particles predicted by supersymmetry. It is funded by and built in collaboration with over 10,000 scientists and engineers from over 100 countries as well as hundreds of universities and laboratories.

On 10 September 2008, the proton beams were successfully circulated in the main ring of the LHC for the first time.[4] On 19 September 2008, the operations were halted due to a serious fault between two superconducting bending magnets.[5] Repairing the resulting damage and installing additional safety features took over a year.[6][7] On 20 November 2009 the proton beams were successfully circulated again,[8] and the first high-energy collisions are expected to be attempted in early 2010.[9]

So you have already been told about the LHC, lets concentrate on your other questions.
Big Bang states that universe was originated from a highly dense point of pure energy (no matter).thus when two very thin particle beams are accelerated in opposite directions they gain very high momentum and then when they collide it creates a situation analogues to the Big Bang.
No it doesnt result in a fatal explosion but in creation of matter and anti-matter. If this happens then it will prove our long belief of the Bang. No hazards of the collider, just that its 27 kms long and requires a hell lot of space.

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Wednesday, March 10th, 2010 Questions Comments Off on European Organization For Nuclear Research – What is actually the Hadron collider is all about ?

The Large Hadron Collider chosen

1991 In December, CERN’s Council delegates agree unanimously that the Large Hadron Collider (LHC) is the right machine for further significant advance in the field of high-energy physics research and for the future of CERN.

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Friday, March 5th, 2010 Articles Comments Off on The Large Hadron Collider chosen