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On the Hyperfine Structure of the Rotational Spectra of XYZ3-Type Molecule, Where Nuclei Z Have Electric Quadrupole Moments

Masataka Mizushima, Takashi Ito

Abstract

Hyperfine structure due to the electric quadrupole moments of nuclei is calculated for a special molecule of XYZ3 type, where nucleus Z has a spin larger than 1/2, and nuclei X and Y have no electric quadrupole moments. The number of the hyperfine structural lines is calculated group-theoretically for the cases where I1=1, 3/2, 2, 5/2, I1 being the spin of nucleus Z. The theoretical spectra of the J=0→1 transition are given for these cases.

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Key concepts: Hyperfine structure, Quadrupole, Atomic physics, Spectral line, Nucleus, Molecule, Spin (aerodynamics), Physics