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particle physics |
Also found in: Wikipedia, Hutchinson | 0.02 sec. |
particle physicsor high-energy physicsStudy of the fundamental subatomic particles, including both matter (and antimatter) and the carrier particles of the fundamental interactions as described by quantum field theory. Particle physics is concerned with structure and forces at this level of existence and below. Fundamental particles possess properties such as electric charge, spin, mass, magnetism, and other complex characteristics, but are regarded as pointlike. All theories in particle physics involve quantum mechanics, in which symmetry is of primary importance. See also electroweak theory, lepton, meson, quantum chromodynamics, quark. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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This culture, in Smolin's telling, eschews the philosophical bent of Einstein and quantum theory's founders, preferring the "shut up and calculate" attitude of later particle physicists. For decades, particle physicists have used electron cooling to control the properties of particles in low-energy accelerators, but they were daunted by the difficulty of high-energy cooling, comments beam-cooling specialist Fritz Caspers of the European Organization for Nuclear Research in Geneva. He affirms good science, as one would expect from a former particle physicist of some repute. |
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