Latest Top quark Stories

Lee Rannals for redOrbit.com - Your Universe Online Tevatron scientists have made a lackluster announcement before Wednesday's big event, by admitting they are still uncertain about the existence of the God particle. Just two days before the highly anticipated announcement of the latest Higgs-search results come out from the Large Hadron Collider in Europe, the U.S. Department of Energy’s Tevatron collider scientists failed to announce a finding first, but did present more evidence....

The world’s most precise measurement of the mass of the W boson, one of nature’s elementary particles, has been achieved by scientists from the CDF and DZero collaborations at the Department of Energy’s Fermi National Accelerator Laboratory. The new measurement is an important, independent constraint of the mass of the theorized Higgs boson. It also provides a rigorous test of the Standard Model that serves as the blueprint for our world, detailing the properties of the building blocks...

Data that hinted at the possible discovery of a new sub-atomic particle has been rejected after cross-checks failed to find support for the initial observation, according to a recent BBC News report. Researchers working on the CDF experiment at the US Tevatron "atom smasher" announced in May that they had detected exciting hints of a possible unanticipated particle. But in a separate experiment --called DZero -- cross-checks of the data lacked any good evidence of the findings. The DZero...

At the Large Hadron Collider at CERN protons crash into each other at incredibly high energies in order to 'smash' the protons and to study the elementary particles of nature "“ including quarks. Quarks are found in each proton and are bound together by forces which cause all other known forces of nature to fade. To understand the effects of these strong forces between the quarks is one of the greatest challenges in modern particle physics. New theoretical results from the Niels Bohr...

The Large Hadron Collider (LHC) is giving physicists hopeful candidates in the hunt for the heaviest elementary particle known to science. According to BBC News, so far their observations have been leading them in that direction.If the observations can be confirmed, it would be a first for Europe as the top quark particle has only been generated in one lab in the US. Dr Arnaud Lucotte, from the French National Centre of Scientific Research (CNRS), said the discovery could help physicists in...

Fermilab team of physicists analyze two-lepton dataNew high-energy particle research by a team working with data from Fermi National Accelerator Laboratory further heightens the uncertainty about the exact nature of a key theoretical component of modern physics "” the massive fundamental particle called the Higgs boson.Analysis of data from particle collisions resulting in two leptons helps improve measurements of the mass of another heavy subatomic particle called the top quark, says...

Scientists of the CDF experiment at the Department of Energy's Fermi National Accelerator Laboratory announced March 17 that they have found evidence of an unexpected particle whose curious characteristics may reveal new ways that quarks can combine to form matter. The CDF physicists have called the particle Y(4140), reflecting its measured mass of 4140 Mega-electron volts. Physicists did not predict its existence because Y(4140) appears to flout nature's known rules for fitting quarks and...

The territory where the Higgs boson may be found continues to shrink. The latest analysis of data from the CDF and DZero collider experiments at the U.S. Department of Energy's Fermilab now excludes a significant fraction of the allowed Higgs mass range established by earlier measurements. Those experiments predict that the Higgs particle should have a mass between 114 and 185 GeV/c2. Now the CDF and DZero results carve out a section in the middle of this range and establish that it cannot...

Scientists of the DZero collaboration at the Department of Energy's Fermi National Accelerator Laboratory have achieved the world's most precise measurement of the mass of the W boson by a single experiment. Combined with other measurements, the reduced uncertainty of the W boson mass will lead to stricter bounds on the mass of the elusive Higgs boson.The W boson is a carrier of the weak nuclear force and a key element of the Standard Model of elementary particles and forces. The particle,...

A group of 28 scientists at the U.S. Department of Energy's Fermi National Accelerator Laboratory (Fermilab) have observed particle collisions that produce single top quarks. The observation resulted from proton-antiproton collisions measured by the DZero detector in Fermilab's Tevatron, currently the world's most powerful operating particle accelerator.The discovery of the single top quark confirms critical parameters of particle physics, including the total number of quarks, and is...