particle

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Definition/MeaningWord/Phrase
radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle alpha decay
positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes alpha particle
elementary particle with positive charge; interaction of a positron and an electron results in annihilation antielectron , positron
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 antiparticle
minute particle atom
tiniest particle in a chemical element atom
relating to the tiniest particle in a chemical element atomic
(physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter b , barn
number equal to the difference between the number of baryons and the number of antibaryons in any subatomic structure; it is conserved in all types of particle interactions baryon number
radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle beta decay
any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons boson
subatomic particle with integral spin boson
French nuclear physicist who generalized the wave-particle duality by proposing that particles of matter exhibit wavelike properties (1892-1987) Broglie , de Broglie , Louis Victor de Broglie
any process in which an atomic or nuclear system acquires an additional particle capture
English physicist who discovered the pion (the first known meson) which is a subatomic particle involved in holding the nucleus together (1903-1969) Cecil Frank Powell , Powell
microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood chylomicron
apparatus that detects high-energy particles passing through a supersaturated vapor; each particle ionizes molecules along its path and small droplets condense on them to produce a visible track cloud chamber , Wilson cloud chamber
(cosmology) a hypothetical one-dimensional subatomic particle having a concentration of energy and the dynamic properties of a flexible loop cosmic string , string
nucleus of deuterium; consists of one proton and one neutron; used as a bombarding particle in accelerators deuteron
particle intermingling diffusion
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