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2,500 researchers, 1 supermachine, 1 new snapshot of the universe
April 01, 2008Deep in the bowels of the earth -100 metres below ground in Geneva, Switzerland - lies a supermachine of 27 km circumference called the Large Hadron Collider (LHC) that has been built to unlock the mysteries of the universe.
Claude Leroy, a Université de Montréal physics professor, was among the 2,500 scientists from 37 countries recruited to help design, test and build the ATLAS detector at the supermachine that will provide a new perspective into what occurred at the time of the Big Bang and immediately after. Designed for CERN, the European Organization for Nuclear Research, the ATLAS detector, the largest among the four detectors operating at the supermachine in question, is 46 metres in length, 25 metres in height and 7000 tonnes in weight - or the size of three football fields.
He also participated in physics studies that targeted the production of heavy leptons, excited leptons, quarks and supersymmetry, in particular the study of neutralinos as dark matter candidates. Prof. Leroy's experiments were critical in ensuring the viability of the ATLAS detector at the core of the supermachine, which is the world's biggest particles physics detector. Indeed, before the LHC can be started up, some 38,000 tons of equipment of the supermachine must be cooled down to minus 456 degrees Fahrenheit for the magnets to operate in a superconducting state. This will be achieved by using liquid helium for magnet. Parts of the ATLAS calorimeters use liquid argon cooled at minus 312 degrees Fahrenheit. "The radiation field produced by the operation of the machine and ATLAS is stronger than a nuclear reactor, so it is vital that its design master all aspects of physics," said Prof. Leroy.
Supermachine's Big Bang
The LHC will recreate conditions akin to the Big Bang - which many scientists believe gave birth to the universe - by colliding two beams of particles at close to the speed of light. Since it is estimated that only 4 percent of the universe has been charted, the supermachine will help answer the following questions in physics when it is turned on in summer 2008:
* What is the unknown 96 percent of the universe made of"
* Why do particles have mass"
* Why does nature prefer matter over antimatter"
* What lies beyond Earth's dimension"
University of Montreal
Large Hadron Collider Current Events and Large Hadron Collider News RSSPhysicists seek to keep next-gen colliders in 1 piece
Controlling huge electromagnetic forces that have the potential to destroy the next generation of particle accelerators is the subject of a new paper by a University of Manchester physicist.
Intense heat killed the Universe's would-be galaxies, researchers say
Our Milky Way galaxy only survived because it was already immersed in a large clump of dark matter which trapped gases inside it.
Atomic physics study sets new limits on hypothetical new particles
In a forthcoming Physical Review Letters article, a group of physicists at the University of Nevada, Reno are reporting a refined analysis of experiments on violation of mirror symmetry in atoms that sets new constraints on a hypothesized particle, the extra Z-boson.
Particle physics study finds new data for extra Z-bosons and potential fifth force of nature
The Large Hadron Collider is an enormous particle accelerator whose 17-mile tunnel straddles the borders of France and Switzerland. A group of physicists at the University of Nevada, Reno has analyzed data from the accelerator that could ultimately prove or disprove the possibility of a fifth force of nature.
Argonne cloud computing helps scientists run high energy physics experiments
A novel system is enabling high energy physicists at CERN in Switzerland, to make production runs that integrate their existing pool of distributed computers with dynamic resources in "science clouds."
MSU scientists help lead teams in detection of fundamental component of matter
Michigan State University scientists and colleagues around the world took a step closer to understanding the universe with the discovery of a fundamental building block of nature.
Brown physicists play key role in single top quark discovery
Brown University physicists have played a key role in observing particle collisions that produce a single top quark, one of the fundamental constituents of matter. The discovery was announced Monday by scientists of the CDF and DZero collaborations at the Department of Energy's Fermi National Accelerator Laboratory.
Secrets behind high temperature superconductors revealed
Scientists from Queen Mary, University of London and the University of Fribourg (Switzerland) have found evidence that magnetism is involved in the mechanism behind high temperature superconductivity.
Physicists create BlackMax to search for dimensions in space at the Large Hadron Collider
A team of theoretical and experimental physicists, with participants from Case Western Reserve University, have designed a new black hole simulator called BlackMax to search for evidence that extra dimensions might exist in the universe.
What to do with 15 million gigabytes of data
When it is fully up and running, the four massive detectors on the new Large Hadron Collider (LHC) at the CERN particle-physics lab near Geneva are expected to produce up to 15 million gigabytes, aka 15 petabytes, of data every yea
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The Quantum Frontier: The Large Hadron Collider by Don Lincoln (Author) The highest-energy particle accelerator ever built, the Large Hadron Collider runs under the border between France and Switzerland. It leapt into action on September 10, 2008, amid unprecedented global press coverage and widespread fears that its energy would create tiny black holes that could destroy the earth. By smashing together particles smaller than atoms, the LHC recreates the conditions hypothesized to have existed just moments after the big bang. Physicists expect it to aid our understanding of how the universe came into being and to show us much about the standard model of particle physics -- even possibly proving the existence of the mysterious Higgs boson. In exploring what the collider does and what it might find, Don Lincoln explains what the LHC is likely to teach... |
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The Large Hadron Collider by Lyndon Evans (Editor) The book describes the technology and engineering of the Large Hadron collider (LHC), one of the greatest scientific marvels of this young 21st century. This book traces the feat of its construction, written by the head scientists involved, placed into the context of the scientific goals and principles. Richly illustrated and in full color, this book provides the complete overview of the enterprise, including sections for each of the major experiments. |
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Collider: The Search for the World's Smallest Particles by Paul Halpern (Author) "Paul Halpern is a gifted writer who brings science and scientists alive. This is a wonderful introduction to the world of high-energy physics, where gigantic machines and tiny particles meet." —Kenneth Ford, retired director of the American Institute of Physics and author of The Quantum World: Quantum Physics for Everyone "Professor Paul Halpern takes the reader on a stimulating odyssey on topics ranging from particle physics and dark matter to unexplored dimensions of space. The masterful Halpern likens the physicist's quest to the excavation of archaeologists who seek to uncover 'new treasures' as they unearth wondrous gems that lay hidden all around us. Buy this book and feed your mind!" |
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60 Minutes - The Collider (September 28, 2008) Under the meadows and mountains outside Geneva, 9,000 physicists from all over the world are taking part in one of the biggest, most ambitious scientific collaborations in history. It's called the large hadron collider, a massive scientific instrument that took 20 years to create and cost $8 billion. Steve Kroft descends into the heart of the collider to find out what we hope to learn when atoms smash into each other. This product is manufactured on demand using DVD-R recordable media. Amazon.com's standard return policy will apply. |
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Physics at the Large Hadron Collider by Amitava Datta (Editor), B. Mukhopadhyaya (Editor), A. Raychaudhuri (Editor) This volume contains contributions of leading scientists which discuss different aspects of the physics that could be explored at the Large Hadron Collider (LHC). The LHC is a machine of discovery and it is widely expected that the much-awaited Higgs boson will be detected by it. Also, other open issues include the production of a quark-gluon plasma, the corrections due to strong interactions, search for dark matter, and new theories of supersymmetry or physics models with extra space-time dimensions. | |
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'National greatness' versus real national greatness.(COMMENT)(Large Hadron Collider)(Viewpoint essay): An article from: Science News by Frank Wilczek (Author) This digital document is an article from Science News, published by Science Service, Inc. on October 11, 2008. The length of the article is 817 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser. Citation Details Title: 'National greatness' versus real national greatness.(COMMENT)(Large Hadron Collider)(Viewpoint essay) Author: Frank Wilczek Publication: Science News (Magazine/Journal) Date: October 11, 2008 Publisher: Science Service, Inc. Volume: 174 Issue: 8 Page: 32(1) Article Type: Viewpoint essay Distributed by Gale, a part of Cengage... |
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