Variance measurement of mp/me using cold moleculesThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at University of Windsor, Windsor, Ontario, Canada on 21–26 July 2008.

Abstract

The pure vibrational transition frequencies of magnetically trapped cold XH molecules are useful to detect the variance in the proton-to-electron mass ratio β (X: alkali-earth atom). This paper compares the accuracies of the vibrational transition frequencies for different XH molecules.