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standard model
noun
- a mathematical description of the elementary particles of matter and the fundamental forces by which they interact and behave; a model combining electromagnetic and weak forces.
standard model
noun
- physics a theory of fundamental interactions in which the electromagnetic, weak, and strong interactions are described in terms of the exchange of virtual particles
standard model
- A theory of subatomic particles and their interactions. The standard model is a kind of quantum field theory and states that all matter consists of three types of particles: leptons, quarks, and the gauge bosons (gluons, intermediate vector bosons, and photons), which are responsible for the strong, weak, and electromagnetic forces, along with the more controversial Higgs boson. The standard model was first formulated in the 1970s and was tested repeatedly in the 1980s. It correctly predicted the existence and properties of W and Z bosons. It does not, however, unify all forces, since it does not include an explanation of gravity; a boson called the graviton that might be the mediator of gravity has not been found and cannot be accounted for in the model.
standard model
- The best theory of the ultimate nature of matter available today. In this theory, all matter is made from quarks and leptons . Particles interact with each other through the medium of the strong force , the electromagnetic force , the weak force , and the gravitational force. At high temperature, the theory sees the first three of these forces as an example of a single unified force.
Notes
Example Sentences
Muncy, the first Dodgers player to use a torpedo bat during Wednesday’s game against the Atlanta Braves, needed only three at-bats to learn the new design wasn’t for him, switching back to his standard model before hitting a game-tying double in the eighth inning.
Although the bike is a new "standard model", Mr Davis said he was hoping the auction would raise more than its ordinary price tag.
This is an attractive hypothesis because it would also solve something called the strong CP problem in the standard model of cosmology, said Dr. Ciaran O’Hare, a particle astrophysicist at the University of Sydney who studies dark matter.
“Is this indicating new physics and demanding that we change our understanding of what we know as the standard model of cosmology — or were there still systematic uncertainties that made it seem like there was a tension?â€
The current best candidate for dark matter is the axion, a particle that fits nicely within the standard model of physics and solves several other outstanding puzzles in particle physics.
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