elementary particle

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Related to elementary particle: Elementary particle physics

elementary particle

Any subatomic particle, such as one of the fundamental fermions or gauge bosons, that may be a component of other particles but is not made of components itself. Also called fundamental particle.

elementary particle

(General Physics) any of several entities, such as electrons, neutrons, or protons, that are less complex than atoms and are regarded as the constituents of all matter. Also called: fundamental particle

el′emen′tary par′ticle

any of the fundamental units of matter or radiation, including such particles or quanta as the leptons, the hadrons, the photon, and the graviton.

el·e·men·ta·ry particle

Any of the smallest known units of matter, such as quarks and neutrinos. Elementary particles are not made up of smaller units.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.elementary particle - (physics) a particle that is less complex than an atom; regarded as constituents of all matter
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
antilepton - the antiparticle of a lepton
antiparticle - a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy
antiquark - the antiparticle of a quark
hadron - any elementary particle that interacts strongly with other particles
lepton - an elementary particle that participates in weak interactions; has a baryon number of 0
subatomic particle, particle - a body having finite mass and internal structure but negligible dimensions
quark - (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3; "quarks have not been observed directly but theoretical predictions based on their existence have been confirmed experimentally"
strange particle - an elementary particle with non-zero strangeness
cosmic string, string - (cosmology) a hypothetical one-dimensional subatomic particle having a concentration of energy and the dynamic properties of a flexible loop
weakly interacting massive particle, WIMP - a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe
atom - (physics and chemistry) the smallest component of an element having the chemical properties of the element
particule élémentaire
cząstka elementarna
References in periodicals archive ?
Like all elementary particle decays to charged particles in the final state, the beta decay of the free neutron has a radiative mode: n [right arrow] p + [e.
The new elementary particle discovery gives important insight into the structure and behavior of the atomic nucleus.
It explains the basic physics and formalism of the theory, helps students become proficient in perturbation theory calculations using Feynman diagrams, and introduces gauge theories that are playing a central role in elementary particle physics.
Until now scientists have thought that it is the last undetected elementary particle.
For example: the simple but elegant linkage between electromagnetic and gravitational force; the realization of the beginning of a quantum-gravity model; the fine-structure constant's correct definition; the role of updated Planck values in determining the possible existence of an elementary particle of matter that is mediated by the graviton; new, more rational equations about gravitational phenomena, using the quantum attributes of the hypothetical elementary particle of matter as units of measure; and many more.
A vacuum fluctuation was an even more remote possibility than the chances of a man-made elementary particle destroying the Earth, said Dr Allanach.
Revised edition of a well-established text on elementary particle physics
Two of the neutrinos had an energy of more than 1,000 TeV-that's more than the kinetic energy of a fly in flight-compressed into a single elementary particle.
Theoretical Advanced Study Institute in Elementary Particle Physics; (2011: Boulder, CO) Ed.
Theories that might account for the DZero result include supersymmetry, which assumes that each elementary particle in the standard model has an as-yet-undiscovered heavier superpartner, notes theorist Marcela Carena of Fermilab, who is not a member of the discovery team.
Detailed position-energy calculations of various arrangements, as done on crystals for example, could be done here to pin point the reasons behind an elementary particle to become stable or unstable in the presence of external disturbances, and also the explanation of the various probabilities associated with different break-up scenarios of unstable particles.
It covers the main directions of their unification, basic theoretical ideas and experiments, the general scheme of building up the theory of interacting fields, and principles of operation and designs of accelerators, neutrino telescopes, and elementary particle detectors.

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