氘代氨微波光谱对电子质子质量比变化的敏感性
Sensitivity of microwave spectra of deuterated ammonia to variation of electron-to-proton mass ratio
摘要：
本文估算了部分氘代氨NH_2D和ND_2H微波跃迁的电子-质子质量比μ变化的灵敏度系数Q_μ。由于转动自由度和反转自由度之间的混合，系数Q_μ强烈地依赖于跃迁的量子数。这可用于天体物理学研究常数μ的可能变化。
英文摘要：
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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