http://en.rian.ru/science/20080708/113519417.html

*High-energy experiments into secrets of matter may start in fall*


MOSCOW, July 8 (RIA Novosti) - Proton collisions at the world's most
powerful particle accelerator that some theorists say could create
matter-consuming black holes should not be expected until the fall, a
Russian physicist said Tuesday.

"We are not planning to begin proton collisions this summer," said Mikhail
Kirsanov, a senior researcher at the Russian Institute for Nuclear Research,
which is part of the Large Hadron Collider (LHC) project to investigate high
energy particles and the beginning of the universe.

Some media sources have reported that the LHC may start "smashing atoms" as
early as this week, and previous reports speculated that such collisions
could create a black hole that would consume the Earth.

"We still have to cool down the accelerator and conduct some test-runs of
proton beams around the accelerator ring," Kirsanov said. "No one can
predict a certain date [for the start of the collisions]."

LHC is a particle accelerator that will collide opposing beams of protons
together to explore the validity and limitations of the highly successful
current theoretical picture for particle physics.

The $5.8 billion international project at the European Organization for
Nuclear Research, known by its French initials CERN, involves more than
2,000 physicists from hundreds of universities and laboratories in 34
countries.

The accelerator complex, 27 kilometers in circumference, sits in a
subterranean tunnel one hundred meters below the Franco-Swiss border, near
Geneva, Switzerland.

Once it is up to speed, it is hoped the collider will produce the so-called
Higgs boson, the observation of which could confirm the predictions and
"missing links" in the Standard Model of physics and could explain how other
elementary particles acquire properties such as mass.

Some theorists and members of the general public have long voiced fears that
microscopic black holes may appear as a result of the experiment and capture
the surrounding matter, ultimately leading to the destruction of the entire
planet.

However, scientists have consistently dismissed these allegations as
"ridiculous" - even if a microscopic black hole did form, they say, it would
only last for a fraction of a second.

"Obviously, the world will not end when the LHC switches on," Lyn Evans, the
head of the project at CERN, said last month.


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