Mass of O17 from Penning-trap mass spectrometry and molecular spectroscopy: A precision test of the Dunham-Watson model in carbon monoxide

Brianna J. Mount, Holger S.P. Müller, Matthew Redshaw, Edmund G. Myers

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Abstract

By fitting the Dunham-Watson model to extensive rotational and vibrational spectroscopic data of isotopic variants of CO, and by using existing precise masses of C13,O16, and O18 from Penning-trap mass spectrometry, we determine the atomic mass of O17 to be M[O17] =16.999-131-644(30)u, where the uncertainty is purely statistical. Using Penning-trap mass spectrometry, we have also directly determined the atomic mass of O17 with the more precise result M[O17] =16.999-131-756-6(9) u. The Dunham-Watson model applied to the molecular spectroscopic data hence predicts the mass of O17 to better than 1 part in 108.

Original languageEnglish
Article number064501
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume81
Issue number6
DOIs
StatePublished - Jun 10 2010

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