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Latest Subatomic particles Stories

bd7406b1df912375584f804b0e6c87f11
2010-07-23 06:29:26

The Tevatron accelerator "atom smasher" may get three extra years of usage in order to continue its hunt for the elusive God particle. Physicists at the Tevatron -- based in Batavia, Illinois and operated by the Fermi National Accelerator Laboratory (Fermilab) -- are hoping to keep the accelerator operational until 2014, as they think the Higgs boson is within their grasp. The Higgs boson is a sub-atomic particle considered crucial to the current theory of particle physics. The Tevatron is...

2010-06-27 13:23:07

The best theory for explaining the subatomic world got its start in 1928 when theorist Paul Dirac combined quantum mechanics with special relativity to explain the behavior of the electron. The result was relativistic quantum mechanics, which became a major ingredient in quantum field theory. With a few assumptions and ad hoc adjustments, quantum field theory has proven powerful enough to form the basis of the Standard Model of particles and forces. "Even so, it should be remembered that the...

34647b78909e4e01d4ca22b1786882f91
2010-06-15 12:45:00

According to a new study, there may be multiple versions of the elusive "God particle," or Higgs boson. The Higgs boson particle is the primary goal for the $10 billion Large Hadron Collider (LHC) experiment near Geneva. However, recent studies from the LHC's U.S. rival suggest physicists could be hunting for five particles, not one. The data points to new laws of physics beyond the current accepted theory, known as the Standard Model. The Higgs boson is the sub-atomic particles that...

571b8e5c2d3a1ae073302f0f04e025a71
2010-05-19 12:20:00

Physicists at Fermilab have discovered a clue as to why the world around us is composed of normal matter and not anti-matter. Today, anti-matter is rare, but it can be produced by atom smashers, in nuclear reactions, or by cosmic rays. However, physicists believe the Big Bang should have produced equal amounts of matter and its opposite. The DZero experiment at Fermilab in Illinois has now produced results that provide a clue as to what happened to all the anti-matter. Many...

b5dd90ffdc7d09ed3ef8a7332df6464e
2010-05-02 08:33:57

Researchers isolate collection of "pure" or spin polarized positronium atoms for the first time Positronium is a short-lived system in which an electron and its anti-particle are bound together. In 2007, physicists at the University of California, Riverside created molecular positronium, a brand-new substance, in the laboratory. Now they have succeeded in isolating for the first time a sample of spin polarized positronium atoms. Study results appear this week in the journal Physical Review...

5e5916a5d95c96b2f782c8d4781955621
2009-08-10 11:45:00

Scientists at the University of California, Berkeley, and Lawrence Berkeley National Laboratory in the US, have performed sophisticated laser measurements to detect the subtle effects of one of nature's most elusive forces - the "weak interaction". Their work, which reveals the largest effect of the weak interaction ever observed in an atom, is reported in Physical Review Letters and highlighted in the August 10th issue of APS's on-line journal Physics (physics.aps.org).Along with gravity,...

eea879dbe79dd9296eccbbf152deaeaa
2009-04-08 07:55:00

Analyzing several years' worth of results from Fermilab's Tevatron collider, physicists come up with the most accurate measurement to date of the mass of the W boson, and narrow down the possible mass of the still undiscovered Higgs boson Over the past three decades or more, physicists have developed their experimental and theoretical understanding of the world of subatomic particles into a comprehensive theory known as the standard model. Much of the standard model has been verified and...

d3fde4a3ce5cb60d2f7afafe1e2d04311
2009-03-19 08:59:01

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...

37a6fe3424b3b216014dbebbe56c4ac81
2009-03-10 06:55:00

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...

7ed37642fa5aa0ebb1f7a1595978d7951
2009-02-23 06:30:00

The race is underway to find evidence of a hypothetical particle called the Higgs boson, known as the "God Particle" because it is thought to give mass to the matter that makes up the universe. The Fermi National Accelerator Laboratory's Tevatron accelerator is competing against the Large Hadron Collider in Switzerland, and its grabbing the attention of particle physicists. "This has been the holy grail of high energy physics for the last 30 years," said Joe Lykken, a senior scientist at...


Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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