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arXiv · 0908.2983

Sensitivity of microwave spectra of deuterated ammonia to variation of electron-to-proton mass ratio

M. G. Kozlov·A. V. Lapinov·S. A. Levshakov
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Abstract

We estimate sensitivity coefficients Q_μto variation of the electron-to-proton mass ratio μfor microwave transitions in partly deuterated ammonia NH2D and ND2H. Because of the mixing between rotational and inversion degrees of freedom the coefficients Q_μstrongly depend on the quantum numbers of the transition. This can be used for astrophysical search for possible variation of the constant μ.

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M. G. Kozlov, A. V. Lapinov, S. A. Levshakov. 2010-03-03. Sensitivity of microwave spectra of deuterated ammonia to variation of electron-to-proton mass ratio. https://doi.org/10.1088/0953-4075/43/7/074003

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