standard model

noun

, Physics.

1. 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

1. 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

1. 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

1. 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

The standard model describes the early evolution of the big bang .

The standard model is a unified field theory .

Example Sentences

“Now, the authors say that spacetime coordinates are matrices, but what does that mean for the experimentally tested Standard Model whose quantum fields live in classical spacetime?”

From Salon

Minic instead argued that the quantum theory behind Einstein's gravity and standard model for matter is gravitized quantum theory.

From Salon

Vecchi also noted that the track of the hurricane likely would have occurred with or without climate change — it follows a standard model — but that one can better understand the impending devastation that will be wrought by the storm through the lens of global warming.

From Salon

The Standard Model of Particle Physics is scientists' best understanding of the forces that describe how subatomic particles interact.

From Science Daily

The Standard Model encompasses four forces: the strong nuclear force, the weak nuclear force, the electromagnetic force, and the gravitational force.

From Science Daily