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 ?
"One of the reasons we are interested in VHE gamma rays is because they act as tracers for high energy particles known as cosmic rays.
Astrophysical sources of high energy particles and radiation; proceedings.
During this process very high energy particles will collide at over 800 million times a second.
Context:Solar flares are dramatic and complex events, which give off electromagnetic radiation in almost all wavelength bands across the spectrum, and also directly emit high energy particles into space.
The purpose of the mission is to obtain more knowledge about how comets interact with the high energy particles blasted by the Sun into space that are known as the solar wind.
Last month Mars Express, launched into space by a Russian rocket on June 2, weathered a solar storm caused by high energy particles from eruptions on the sun.

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