Latest Electroweak theory Stories

2009-12-07 19:02:35

Fermilab team of physicists analyze two-lepton data New 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...

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,...

2009-05-02 09:27:07

University of Nevada, Reno team findings to be published in Physical Review Letters article In a forthcoming Physical Review Letters article, a group of physicists at the University of Nevada, Reno are reporting a refined analysis of experiments on violation of mirror symmetry in atoms that sets new constraints on a hypothesized particle, the extra Z-boson. Andrei Derevianko, an associate professor in the College of Science's Department of Physics, who has conducted groundbreaking research to...

2009-04-28 14:54:55

The Large Hadron Collider is an enormous particle accelerator whose 17-mile tunnel straddles the borders of France and Switzerland. A group of physicists at the University of Nevada, Reno has analyzed data from the accelerator that could ultimately prove or disprove the possibility of a fifth force of nature. As the largest science instrument ever built, the LHC has the science community buzzing with excitement as it may help in understanding the inner workings of Nature. Remarkably, some of...

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...

2009-03-12 10:32:55

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,...

2008-09-15 18:00:13

NOW that the euphoria and hype surrounding the search for the Higgs boson - using the Large Hadron Collider at Cern - have eased somewhat, it is perhaps opportune to raise a couple of important questions on the methodology of physical science, which seem to have been largely ignored or forgotten in the meantime. It is a tenet of the scientific method that physical experiment should be performed to test out theories, and in such manner as to be unbiased and amenable to independent...

2008-04-08 00:10:00

British physicist Peter Higgs said Monday he believes the discovery of a subatomic particle, whose existence he postulated about 40 years ago, would take place within the next year as a result of a race between powerful research equipment in the U.S. and Europe.   The particle, named "Higgs boson", would prove the existence of a force that gives mass to the universe and makes life possible, he said. Higgs believes a particle, which originates from the force, will be discovered...

Word of the Day
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.