 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Study finds single top quarks evidence
Batavia, Ill. (UPI) Dec 18, 2006 U.S. physicists have found the first evidence of single top quarks produced in a subatomic process involving the weak nuclear force. Scientists of the DZero collaboration at the Fermi National Accelerator Laboratory announced the discovery this month. DZero is an international experiment conducted by physicists from 90 institutions and 20 countries. The physicists say the result is an important test of predictions made by particle theory and, in the longer term, the techniques employed in the analysis will allow scientists to search for an even more elusive particle -- the Higgs boson. Starting from a million billion proton-antiproton collisions produced by Fermilab's Tevatron, the world's most powerful particle collider, the DZero collaboration used modern sophisticated analysis techniques to search for about 60 collisions, each containing a single top quark. "Observing a few single top quarks in a sea of billions of particle collisions represents an extraordinary technical tour de force," said Robin Staffin, associate director for high energy physics in the U.S. Department of Energy's Office of Science. "The power and sophistication of experimental analysis techniques like those developed by the DZero experimenters augur well for exciting discoveries to come." Community Email This Article Comment On This Article Related Links Understanding Time and Space
Astrophysicist Herbert Gursky dies
Washington (UPI) Dec 18, 2006 Astrophysicist Herbert Gursky, superintendent of the U.S. Naval Research Laboratory's Space Science Division, died early this month in Fairfax, Va. |
|
|
| The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement |
