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dc.creatorChampion, J. P.en_US
dc.creatorPierre, G.en_US
dc.creatorPascaud, E.en_US
dc.creatorPoussigue, G.en_US
dc.date.accessioned2006-06-15T14:38:45Z
dc.date.available2006-06-15T14:38:45Z
dc.date.issued1981en_US
dc.identifier1981-ME-12en_US
dc.identifier.urihttp://hdl.handle.net/1811/11526
dc.descriptionAuthor Institution:en_US
dc.description.abstractThe simultaneous fit of transitions from the $v_{1}, v_{3}, 2v_{2}, v_{2}+v_{4}$ and $2v_{4}$ bands of $^{12}CH_{4}$ is presented. More than 1500 vibro-rotational energy levels involved in one or more observed transitions up to $J^{\prime} = 15$ have been included. The overall standard deviation is 20 mk. The originality of our theoretical approach lies in two main points: 1 - Off-diagonal terms are developed to the same order than diagonal terms (3rd order). 2 - Rather than using effective rotational parameters for each band, we expand the hamiltonian according to both vibrational and rotational powers. As a result, the only parameters to be refined involve small powers of J. This comprehensive study leads to a single consistent set of parameters reproducing the energy levels of the ground state and the first two polyades of $^{12}CH_{4}$ with a good accuracy. The extrapolation of such an approach for investigating higher polyades is discussed. [FIGURE]en_US
dc.format.extent118718 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleA SINGLE CONSISTENT SET OF 85 CONSTANTS FOR THE GROUND STATE, THE DIADE AND THE PENTADE OF $^{12}CH_{4}$en_US
dc.typearticleen_US


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