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hyperfine structure

   Also found in: Encyclopedia, Wikipedia 0.03 sec.
hy·per·fine structure  (hpr-fn)
n. Abbr. hfs
Any of the spectral lines formed from the splitting of broader spectral lines as a result of the interaction between the magnetic moments of electrons and atomic nuclei.
hyperfine structure [ˈhaɪpəˌfaɪn]
n
(Physics / General Physics) the splitting of a spectral line of an atom or molecule into two or more closely spaced components as a result of interaction of the electrons with the magnetic moments of the nuclei Compare fine structure See also Zeeman effect


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The derived molecular properties, such as rotational and centrifugal distortion constants, hyperfine structure constants, electric dipole moments, rotational g-factors and internuclear distances (for diatomic molecules) are listed with one standard deviation uncertainties for all species.
Molecular spectra databases now available online. (General ... by Journal of Research of the National Institute of Standards and Technology
The lack of discernible hyperfine structure suggested the presence of a mixture of radical species with overlapping ESR spectra.
Combustion products of 1,3-butadiene are cytotoxic and genotoxic to ... by Penn, Arthur / Environmental Health Perspectives
1) for a (v,J') level is due to the (unresolved) hyperfine structure of the [0.
A spectroscopic determination of scattering lengths for sodium atom ... by Phillips, William D. / Journal of Research of the National Institute of Standards and Technology
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