- sigma particles
- sigma particles plural noun (physics)Three hyperons of medium mass, having respectively positive, neutral and negative charge• • •Main Entry: ↑sigma
Useful english dictionary. 2012.
sigma particles
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Sigma baryon — The Sigma baryons are a family of subatomic hadron particles which have a +2, +1 or 1 elementary charge or are neutral. They are baryons containing three quarks: two up and/or down quarks, and one third quark, which can be either a strange… … Wikipedia
Sigma SD14 — Infobox Digicam model = Sigma SD14 Digital single lens reflex sensor = 20.7 mm x 13.8 mm Foveon X3 sensor res = 2652 × 1768 × 3 (14.1 million active photoelements) lens = Interchangeable (Sigma SA mount) viewfinder = Optical, pentaprism storage … Wikipedia
hadron — hadronic /ha dron ik/, adj. /had ron/, n. Physics. any elementary particle that is subject to the strong interaction. Hadrons are subdivided into baryons and mesons. Cf. quark. [1962; < Gk hadr(ós) thick, bulky + ON1] * * * Any of the subatomic… … Universalium
sig|mic — «SIHG mihk», adjective. of or containing sigma particles: »Kaonic and sigmic atoms tend to go together, since experiments aimed at making kaonic atoms make sigmic ones too (Science News) … Useful english dictionary
sigmabaryon — sigma baryon n. Any of three unstable subatomic particles in the baryon family, having a mass 2,328 to 2,343 times that of the electron and a positive, neutral, or negative electron charge. * * * … Universalium
Non-topological soliton — In quantum field theory, a non topological soliton (NTS) is a field configuration possessing, contrary to a topological one, a conserved Noether charge and stable against transformation into usual particles of this field for the following reason … Wikipedia
Neutron cross section — Science with Neutrons Foundations Neutron temperature Flux · Radiation … Wikipedia
Lorentz force — This article is about the equation governing the electromagnetic force. For a qualitative overview of the electromagnetic force, see Electromagnetism. For magnetic force of one magnet on another, see force between magnets. Electromagnetism … Wikipedia
Dirac spinor — In quantum field theory, the Dirac spinor is the bispinor in the plane wave solution of the free Dirac equation, where (in the units ) is a relativistic spin 1/2 field … Wikipedia
Van Stockum dust — In general relativity, the van Stockum dust is an exact solution of the Einstein field equation in which the gravitational field is generated by dust rotating about an axis of cylindrical symmetry. Since the density of the dust is increasing with … Wikipedia
