Spectroscopy of Ar-SH and Ar-SD. I. Observation of rotation-vibration transitions of a van der Waals mode by double-resonance spectroscopy |
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| Authors: | Sumiyoshi Yoshihiro Katsunuma Hajime Suma Kohsuke Endo Yasuki |
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| Institution: | Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan. |
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| Abstract: | Rotation-vibration transitions of a van der Waals bending vibration, P = 1/2 <-- 3/2, of the Ar-SHSD (X 2pi) complexes in the electronic ground state have been observed by applying newly developed microwave-millimeter-wave double-resonance spectroscopy. The rotational energy-level structure for the two isotopomers, with hyperfine structure due to the hydrogen or deuterium nuclei and parity doublings in the P = 1/2 state, has now been clarified. Detailed explanation of the double-resonance technique is also given. |
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