Abstract
The relativistic correction to the dissociation energy of , , and HD molecules has been accurately calculated without expansion in the small electron-nucleus mass ratio. The obtained results indicate the significance of nonadiabatic effects and resolve the discrepancy of theoretical predictions with recent experimental values for and . While the theoretical accuracy is now significantly improved and is higher than the experimental one, we observe about discrepancy for the dissociation energy of HD, which requires further investigation.
- Received 5 June 2018
DOI:https://doi.org/10.1103/PhysRevLett.121.073001
© 2018 American Physical Society