particle physics

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particle physics

[′pärd·ə·kəl ¦fiz·iks]
(physics)
The branch of physics concerned with understanding the properties and behavior of elementary particles, especially through study of collisions or decays involving energies of hundreds of megaelectronvolts or more. Also known as high-energy physics.
References in periodicals archive ?
HTV-5 carried a variety of experiments and supplies to the space station, including the NanoRacks External Payload Platform, which can house multiple investigations in the open-space environment of the station, and the CALorimetric Electron Telescope investigation, an astrophysics mission that measures high energy particles to search for dark matter and the origin of cosmic rays.
The magnets produced by ASG will be used for the Nustar experiment, in which a beam of high energy particles is made to collide with a fixed target.
The IRD product line detects high energy particles and photons in the UV and X-ray regions.
Cosmic rays enter the earth's upper atmosphere and create muons, high energy particles which naturally and harmlessly rain down on the earth's surface.
The company, with the recent acquisition of International Radiation Detectors, also designs and manufactures semiconductor radiation devices that detect photons in the UV range, X-rays, and other high energy particles.
The unique flare came at the end of a string of five other very large flares from the same sunspot group, and no one knows why this one produced more sudden high energy particles than the first four.

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