Latest Collider Detector at Fermilab Stories

2012-03-05 10:36:37

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...

2011-07-21 14:00:00

Physicists at the U.S.-based Fermilab have produced a new particle that is a heavier relative of the neutron. The Batavia, Illinois atom smasher found the neutral Xi-sub-b by smashing particles together around a 4-mile ring at near light speed.  Physicists knew the particle existed, but it is the first time researchers have observed it firsthand.  Measuring the properties of particles like the neutral Xi-sub-b allows physicists to understand how quarks interact to form matter....

2011-06-11 08:40:14

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...

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...

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...

2005-07-07 15:32:05

Dutch researcher Bram Wijngaarden investigated how bottom quarks are created during collisions between protons and antiprotons. Wijngaarden's measurements have contributed to a better understanding of the theory, and can be used to explain why the production of these quarks during such collisions is higher than had originally been expected. Bram Wijngaarden investigated the creation of bottom quarks using the D zero experiment of the particle accelerator at the Fermi lab in Chicago, United...

Word of the Day
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This word ultimately comes from the Medieval Latin 'cappa,' cloak.