News tagged with standard model

World's best measurement of W boson mass tests Standard Model, Higgs boson limits

(PhysOrg.com) -- Just as firemen use different methods to narrow the location of a person trapped in a building, scientists employ two techniques to find the hiding place of the theorized Higgs particle: direct ...

Physics / General Physics

created Feb 23, 2012 | popularity 4.7 / 5 (26) | comments 8 | with audio podcast

Fermilab experiment fails to confirm new particle claim

(PhysOrg.com) -- In April, scientists at one of Fermilab’s two particle detectors, CDF, observed what they thought might be a new particle not predicted by the Standard Model. But now, scientists at the ...

Physics / General Physics

created Jun 13, 2011 | popularity 4.9 / 5 (11) | comments 16 | with audio podcast report

Physicists Investigate Possibility of an 'Unhiggs'

(PhysOrg.com) -- One of the biggest goals of the LHC is to discover the Higgs boson, the only particle in the Standard Model that has not yet been observed. In general, physicists are pretty confident that ...

Physics / General Physics

created Jan 28, 2010 | popularity 4.6 / 5 (47) | comments 45 | with audio podcast feature

Can R2 gravity explain dark matter?

(PhysOrg.com) -- "In many ways, the standard model of cosmology works very well," Jose Cembranos tells PhysOrg. "However, there are very basic features that we just do not know. We have dark energy and dark matter. They d ...

Physics / General Physics

created Apr 20, 2009 | popularity 3.4 / 5 (81) | comments 50 feature

New Data Suggests We Don’t Live in a Void, and Supports Dark Energy

(PhysOrg.com) -- An alternative proposal to dark energy in which the Earth sits near the center of a large void is undergoing scrutiny, and the results show that void models fit poorly with observed data. ...

Physics / General Physics

created Jan 28, 2009 | popularity 3.9 / 5 (37) | comments 75 feature

Tevatron experiments report latest results in search for Higgs boson

(PhysOrg.com) -- New measurements announced today by scientists from the CDF and DZero collaborations at the Department of Energy’s Fermi National Accelerator Laboratory indicate that the elusive Higgs ...

Physics / General Physics

created Mar 07, 2012 | popularity 4.5 / 5 (15) | comments 17 | with audio podcast

Time reversal: A simple particle could reveal new physics

(PhysOrg.com) -- A simple atomic nucleus could reveal properties associated with the mysterious phenomenon known as time reversal and lead to an explanation for one of the greatest mysteries of physics: the ...

Physics / General Physics

created Oct 11, 2011 | popularity 4.8 / 5 (40) | comments 128 | with audio podcast

Rare particle decay could mean new physics

(PhysOrg.com) -- An incredibly rare sub-atomic particle decay might not be quite as rare as previously predicted, say Cornell researchers. This discovery, culled from a vast data set at the Collider Detector at Fermilab (CDF), ...

Physics / General Physics

created Aug 23, 2011 | popularity 4.6 / 5 (22) | comments 27 | with audio podcast

A hint of Higgs: An update from the LHC

The physics world was abuzz with some tantalizing news a couple of weeks ago. At a meeting of the European Physical Society in Grenoble, France, physicists -- including some from Caltech -- announced that ...

Physics / General Physics

created Aug 16, 2011 | popularity 4.6 / 5 (36) | comments 57 | with audio podcast

Large Hadron Collider smashes another record

The world's biggest particle collider set a new record early Monday, a feat that should accelerate the quest to pinpoint the elusive particle known as the Higgs Boson, a senior physicist said.

Physics / General Physics

created May 23, 2011 | popularity 4.8 / 5 (27) | comments 39

Riddle of 'God particle' could be solved by 2012: CERN (Update)

Physicists said on Tuesday they believed that by the end of 2012 they could determine whether a theorised particle called the Higgs boson, which has unleashed a gruelling decades-long hunt, exists or not.

Physics / General Physics

created May 17, 2011 | popularity 4.4 / 5 (14) | comments 33

Another Higgs rumor reminds us how science is correctly done

(PhysOrg.com) -- With the Large Hadron Collidor (LHC) running smoothly for well over a year now, the excitement surrounding the possibility for the discovery of new physics has generated a few rumors - speculations ...

Physics / General Physics

created Apr 25, 2011 | popularity 4.7 / 5 (7) | comments 11 | with audio podcast weblog

Primordial weirdness: Did the early universe have 1 dimension?

(PhysOrg.com) -- Did the early universe have just one spatial dimension? That's the mind-boggling concept at the heart of a theory that University at Buffalo physicist Dejan Stojkovic and colleagues proposed in 2010.

Physics / General Physics

created Apr 20, 2011 | popularity 4.3 / 5 (37) | comments 200 | with audio podcast

Another universe tugging on ours? Maybe not, researchers say

(PhysOrg.com) -- A new study from the University at Buffalo contradicts the dark flow theory, showing that exploding stars in different parts of the universe do not appear to be moving in sync. Working with ...

Space & Earth / Astronomy

created Apr 14, 2011 | popularity 4.4 / 5 (14) | comments 9 | with audio podcast

Physics experiment suggests existence of new particle

(PhysOrg.com) -- The results of a high-profile Fermilab physics experiment involving a University of Michigan professor appear to confirm strange 20-year-old findings that poke holes in the standard model, suggesting the ...

Physics / General Physics

created Nov 02, 2010 | popularity 4.8 / 5 (58) | comments 34 | with audio podcast

Standard Model

The Standard Model of particle physics is a theory of three of the four known fundamental interactions and the elementary particles that take part in these interactions. These particles make up all visible matter in the universe. The standard model is a gauge theory of the electroweak and strong interactions with the gauge group SU(3)×SU(2)×U(1).

Every high energy physics experiment carried out since the mid-20th century has eventually yielded findings consistent with the Standard Model. Still, the Standard Model falls short of being a complete theory of fundamental interactions because it does not include gravity, dark matter, or dark energy. It isn't quite a complete description of leptons either, because it does not describe nonzero neutrino masses, although simple natural extensions do.

For more information about Standard Model, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.