Analysis of Molecular Rotational Spectra

Details Analysis of Molecular Rotational Spectra Analysis of Molecular Rotational Spectra

1997-12-10

arxiv.org/abs/physics/9712017v1

Physics

Atomic Physics

10 pages, RevTex, 5 p.s figures, submitted to Phys. Rev. A

Scientific paper

Rotational spectra of diatomic molecules measured in the high-precision experiments are analyzed. Such a spectrum is usually fitted by an 8th order polynomial in spin. In fact, from the theoretical point of view, the rotational spectrum is expected to be a smooth function of spin. Thus, fitting the rotational spectrum in terms of a low order polynomial in spin seems to be justified. However, this is not what we found in the present work. We show that the measured spectrum is not necessarily a smooth function of the spin, which is quite surprising. Whether or not it indicates the presence of some hidden physics is an open question.

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