Hyperfine structure of the J=1←0 transition of HCl and HCl: improved ground state parameters |
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Authors: | Gabriele Cazzoli Cristina Puzzarini |
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Institution: | Dipartimento di Chimica “G. Ciamician”, Università di Bologna, Via Selmi 2, I-40126, Bologna, Italy |
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Abstract: | The pure rotational J=1←0 transitions of H35Cl and H37Cl have been observed in the millimeter-wave region using the Lamb-dip technique to resolve the hyperfine structure due to 35Cl or 37Cl and H. The present observations allow to provide not only very accurate hyperfine constants but also, joint together with previous data, the most accurate ground state rotational parameters known up to now. The experimental determination of the hyperfine parameters has also been supported by ab initio computations. |
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Keywords: | Lamb-dip Rotational spectrum Hyperfine structure HCl |
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