quantum collision theory
61Compton wavelength — The Compton wavelength is a quantum mechanical property of a particle. It was introduced by Arthur Compton in his explanation of the scattering of photons by electrons (a process known as Compton scattering). The Compton wavelength of a particle… …
62Jet (particle physics) — A jet is a narrow cone of hadrons and other particles produced by the hadronization of a quark or gluon in a particle physics or heavy ion experiment. Because of QCD confinement, particles carrying a color charge, such as quarks, cannot exist in… …
63John Sealy Townsend — Infobox Scientist box width = 300px name = John Townsend image size = 300px caption = John Sealy Edward Townsend (1868 1957) birth date = birth date|1868|6|7|mf=y birth place = Galway, County Galway, Ireland death date = death date|1957|2|16|mf=y …
64Wick's theorem — is a method of reducing high order derivatives to a combinatorics problem.(Philips, 2001) It is named after Gian Carlo Wick. It is used extensively in quantum field theory to reduce arbitrary products of creation and annihilation operators to… …
65Automatic calculation of particle interaction or decay — The automatic calculation of particle interaction or decay is part of the computational particle physics branch. It refers to computing tools that help calculating the complex particle interactions as studied in high energy physics, astroparticle …
66Timeline of particle discoveries — This is a timeline of subatomic particle discoveries, including all particles thus far discovered which appear to be elementary (that is, indivisible) given the best available evidence. It also includes the discovery of composite particles and… …
67Antiproton — Negaton redirects here. For the negatively charged particle in an atom that was once called a negaton, see Electron. Antiproton The quark structure of the antiproton. Classification Antibaryon Composition …
68S-matrix — ▪ quantum mechanics also called scattering matrix in quantum mechanics, array of mathematical quantities that predicts the probabilities of all possible outcomes of a given experimental situation. For instance, two particles in collision… …
69radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …
70Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …
