coupling constant

(redirected from coupling constants)

coupling constant

[′kəp·liŋ ′kän·stənt]
(particle physics)
A measure of the strength of a type of interaction between particles, such as the strong interaction between mesons and nucleons, and the weak interaction between four fermions; analogous to the electric charge, which is the coupling constant between charged particles and electromagnetic radiation.
(physics)
A measure of the strength of the coupling between two systems, especially electric circuits; maximum coupling is 1 and no coupling is 0. Also known as coefficient of coupling; coupling coefficient.
A measure of the dependence of one physical quantity on another.
References in periodicals archive ?
The mass of equivalent to the Higgs boson mass are obtained, the coupling constants in different types of interactions, the binding energy of the deuteron, triton, and alpha particles are defined, the possible ranges of alpha particles energies are identified, and dependence of the nucleon-nucleon interaction from a distance is explained.
Among the topics are the physical basis of the NMR experiment, proton chemical shifts and spin-spin coupling constants as functions of structure, the influence of molecular symmetry and chirality on proton magnetic resonance spectra, carbon-13 NMR spectroscopy, selected heteronuclei, and NMR of partially oriented molecules and solid-state NMR.
The coupling constants are typical ortho coupling constants.
Other subjects discussed include topological origins of the coupling constants hierarchy, semiclassical dynamics of black holes, black hole evaporation as a nonequilibrium process, and the dynamics of anisotropic universes.
The stereochemistry of 1 was determined to be a trans and cis mixture from the coupling constants (16.
In the EFT approach the unknown high energy behavior is integrated out and replaced by the set of low energy coupling constants (LEC) in the effective Lagrangian.
The C-1 methine proton of the cis isomer is gauche to the hydrogens on C-2 and C-6, which would give rise to very small coupling constants at best, while the C-1 methine proton of the trans isomer is anti to the C-2 hydrogen and the axial C-6 hydrogen, which produces large coupling constants.
17] electric quadrupole coupling constants for the OW1, 0W2, and 0W3 water molecules were found to be 7.
COSY: Determination of Coupling Constants (Harald Schwalbe, P.
2], maintains the separate identities of the two coupling constants [e.
The fourth edition examines multiple strategies for measuring coupling constants, and adds a section on determining the relative and absolute stereochemical configuration with NMR.