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New accelerator technique doubles particle energy in just one meter
02-14-2007 · EurekAlert!Imagine a car that accelerates from zero to 60 in 250 feet, and then rockets to 120 miles per hour in just one more inch.That's essentially what a collaboration of more than a dozen accelerator physicists has accomplished, using electrons for their racecars and plasma for the afterburners. The researchers published their work in the Feb. 15 issue of Nature.
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Keywords: accelerator, technique, doubles, particle, energy, meter, double
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- New accelerator technique doubles particle energy in just one meter
02-14-2007 · EurekAlert!
New research shows that acceleration using plasma, or ionized gas, can dramatically boost the energy of particles in a short distance. The group of researchers -- from the Department of Energy's Stanford Linear Accelerator Center (SLAC), the UCLA Henry Samueli School of Engineering and Applied Science and the University of Southern California Viterbi School of Engineering, have published their work in the Feb. 15 issue of Nature.
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- CERN announces new start-up schedule for world's most powerful particle accelerator
06-22-2007 · EurekAlert!
Speaking at the 142nd session of the CERN Council today, the Organization's Director General Robert Aymar announced that the Large Hadron Collider (LHC) will start up in May 2008, taking the first steps towards studying physics at a new high-energy frontier.
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- New experiment to investigate the effect of galactic cosmic rays on clouds and climate
10-23-2006 · EurekAlert!
A novel experiment, known as CLOUD (Cosmics Leaving OUtdoor Droplets), begins taking its first data today with a prototype detector in a particle beam at CERN , the world's largest laboratory for particle physics. The goal of the experiment is to investigate the possible influence of galactic cosmic rays on Earth's clouds and climate. This represents the first time a high energy physics accelerator has been used for atmospheric and climate science.
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- DOE's Office of Science Launches Website for U.S. Role at Large Hadron Collider
09-12-2007 · Brookhaven National Laboratory
The U.S. Department of Energy's Office of Science today launched a new website to tell the story of the U.S. role in the Large Hadron Collider (LHC), a particle accelerator that will begin operating in Europe, near Geneva, Switzerland, next year. Hundreds of physicists, engineers and students from the United States are joining with colleagues from around the globe in the largest and most complex scientific experiments ever built.
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- DZero finds evidence of rare single top quark
12-14-2006 · EurekAlert!
Scientists of the DZero collaboration at the Department of Energy's Fermi National Accelerator Laboratory announced the first evidence of single top quarks produced in a rare subatomic process involving the weak nuclear force. The result is an important test of predictions made by particle theory, such as the number of quarks that exist in nature. In the longer term, the techniques employed in this analysis will allow scientists to search for an even more elusive particle, the Higgs boson.
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- CERN confident of LHC start-up in 2007
12-15-2006 · EurekAlert!
Delegates attending the 140th meeting of CERN Council today heard a confident report from the laboratory about the scheduled start-up of the world's highest energy particle accelerator, the Large Hadron Collier (LHC), in 2007.
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- Milky Way black hole may be a colossal 'particle accelerator'
02-27-2007 · EurekAlert!
The black hole at the center of our Milky Way could be working like a cosmic particle accelerator, revving up protons that smash at incredible speeds into lower energy protons and creating high-energy gamma rays, University of Arizona astrophysicists say.
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- Fermilab physicists discover 'triple-scoop' baryon
06-13-2007 · EurekAlert!
Physicists of the DZero experiment at the Department of Energy's Fermi National Accelerator Laboratory have discovered a new heavy particle, the Оb (pronounced "zigh sub b") baryon, with a mass of 5.774±0.019 GeV/c2, approximately six times the proton mass. The newly discovered electrically charged Оb baryon, also known as the "cascade b," is made of a down, a strange and a bottom quark.
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- Lasers Shine Light on Chemical Reactions
11-22-2006 · Brookhaven National Laboratory
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have been using a high-resolution laser technique to learn how molecules absorb light and fall apart during photodissociation reactions - chemical decomposition reactions triggered by light. Studying the atomic-level details of such reactions allows scientists to test and refine theories of chemical reactions, and may help them in their quest to use light to control reaction outcomes.
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- Theoretical physicists develop test for string theory
01-24-2007 · EurekAlert!
For decades, many scientists have criticized string theory, pointing out that it does not make predictions by which it can be tested. Now, researchers at Carnegie Mellon University; the University of California, San Diego; and The University of Texas at Austin have developed a test of string theory. Their test, described in the January 26 Physical Review Letters, involves measurements of how elusive high-energy particles scatter during particle collisions.
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