- antiparticles
- n. one of two particles that destroy each other on impact (Physics)
English contemporary dictionary. 2014.
antiparticles
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Antiparticle — The laws of nature are very nearly symmetrical with respect to particles and antiparticles. For example, an antiproton and a positron can form an antihydrogen atom, which has almost exactly the same properties as a hydrogen atom. A physicist… … Wikipedia
antimatter — /an tee mat euhr, an tuy /, n. Physics. matter composed only of antiparticles, esp. antiprotons, antineutrons, and positrons. [1950 55; ANTI + MATTER] * * * Substance composed of elementary particles having the mass and electric charge of… … Universalium
Antimatter — For other uses, see Antimatter (disambiguation). Antimatter … Wikipedia
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Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium
Weak interaction — Standard model of particle physics … Wikipedia
Virtual particle — In physics, a virtual particle is a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum due to the Heisenberg Uncertainty Principle. (Indeed, because energy and momentum in quantum mechanics are … Wikipedia
annihilation — /euh nuy euh lay sheuhn/, n. 1. the act or an instance of annihilating. 2. the state of being annihilated; extinction; destruction. 3. Physics. a. Also called pair annihilation. the process in which a particle and antiparticle unite, annihilate… … Universalium
CP violation — In particle physics, CP violation is a violation of the postulated CP symmetry: the combination of C symmetry (charge conjugation symmetry) and P symmetry (parity symmetry). CP symmetry states that the laws of physics should be the same if a… … Wikipedia
Nucleon — For the Ford concept car, see Ford Nucleon. For the fictional power source in the Transformers universe, see Nucleon (Transformers). An atomic nucleus is a compact bundle of the two types of nucleons: Protons (red) and neutrons (blue). In this… … Wikipedia
