Wednesday, April 09, 2008

Veteran physicist hopes secret of universe lies underground



by Patrick BaertMon Apr 7, 11:14 AM ET

British scientist Peter Higgs, whose work is the cornerstone of modern physics, said Monday he is putting champagne on ice in the hope a new experiment confirms his theories on how the universe works.

Higgs, a veteran professor at Edinburgh University, told journalists in a rare interview that he hopes a vast experiment in the tunnels deep underground the CERN laboratory on the Franco-Swiss border could finally prove the existence of an elusive and unstable particle to which he has lent his name.

The so-called "Higgs Boson" has been dubbed the 'God Particle' because so many have searched for it but no-one has seen it, despite Higgs using scientific deductions to claim its existence as far back as 1964.

Now the white-haired scientist hopes to be vindicated in time for his 80th birthday on May 29, 2009.

"I've asked my GP to keep me alive a little longer," he joked on the sidelines of a visit to CERN.

The thousands of scientists who work there have spent years preparing for the experiment which will deploy the Large Hadron Collider (LHC) -- essentially the world's biggest atom-smasher -- in a bid to recreate the conditions of the 'Big Bang' when the universe is deemed to have been created.

The LHC will whizz protons to 99.9999 percent of the speed of light in two parallel beams in a ring-shaped tunnel 27 kilometres (16.9 miles) long and up to 175 metres (568 feet) below ground.

In top gear, the LHC will generate nearly a billion collisions per second. Above ground, a farm of 3,000 computers, one of the largest in the world, will instantly crunch this number down to about 100 collisions that are of the most interest.

If the LHC discovers the Higgs, it would fill a huge gap in the so-called Standard Model, the theory that summarises our present knowledge of particle physics. The Higgs would help explain the origin of mass and why some particles in the Standard Model have it but others, oddly, do not.

"I shall open a bottle of something," should the particle exist, the 79-year-old professor said.

"It will be champagne -- whisky takes a little more time to drink," he added.

A gamble costing six billion Swiss francs (3.9 billion euros) that has harnessed the labours of more than 2,000 physicists from nearly three dozen countries, the LHC is the biggest, most powerful high-energy particle accelerator ever built.

"I should be very, very puzzled" if the LHC does not prove the existence of the Higgs Boson, its namesake scientist said.

"On the basis of the evidence that we have, it's not far off. It will be in the data very quickly but a lot of analysis of the data has to be done before you've announced that you've seen it," Higgs said.

The team at CERN are not the only ones hunting for the Higgs Boson however. A rival team based at Fermilab in Chicago are in hot pursuit, using an ageing accelerator known as the Tevatron, which is due to be phased out in 2010.

"It's a possibility that they find it first," Higgs conceded.

"It's hard for them to find it but it could be already in their data but not in their analysis yet," he added.

The competition is fierce but not cut-throat -- the United States and Fermilab itself are enthusiastic partners in the LHC.

While Higgs hopes the LHC will reveal the secrets of the universe, others fear an apocalyptic scenario straight out of a science-fiction film -- that the experiment will, in effect, create massive black holes which could reduce Earth to a lump of hot, strange matter.

Higgs dismisses such fears as the products of over-active imaginations.

"This black hole business has become rather inflated because even theorists suggesting many black holes could be produced are not predicting large black holes which would swallow up large chunks of the universe," he said.

"I think the publicity about that got out of hand and some people have misunderstood," he added.

1 comment:

Tom Heneghan said...

Peter Higgs told journalists in Geneva he doesn't like the term "God particle" because it might offend believers -- even though he is not one himself. More on the Reuters religion blog FaithWorld at http://blogs.reuters.com/faithworld/2008/04/09/is-god-particle-the-right-term-for-massive-mystery-in-physics/