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Spectroscopic properties and cold elastic collisions of alkaline-earth Mg + Mg+ system.
- Source :
-
Journal of Physics B: Atomic, Molecular & Optical Physics . 10/14/2018, Vol. 51 Issue 19, p1-1. 1p. - Publication Year :
- 2018
-
Abstract
- In this theoretical work, we calculate molecular potential energy curves, spectroscopic constants and transition dipole moments for the ground and first excited electronic states (A2Πu) of alkaline-earth molecular ion We consider an ab initio multi-reference configuration interaction method using an aug-cc-pv5z Gaussian basis set and compare our results with those obtained by others. The comparison shows a very good agreement. In addition, we investigate the ion-atom elastic collisions for a wide range of energies including the isotopic effect. In close connections, we determine the scattering T-matrix elements for ground-state electronic potentials, which show divergent behavior at a particular energy, indicating the occurrence of scattering resonances. We find that the s-wave scattering length is positive for both ground-state potentials. We also study possible free-bound transitions and Franck–Condon overlap for our system. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELASTIC scattering
*ALKALINE earth ions
*MAGNESIUM ions
Subjects
Details
- Language :
- English
- ISSN :
- 09534075
- Volume :
- 51
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Journal of Physics B: Atomic, Molecular & Optical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 132276827
- Full Text :
- https://doi.org/10.1088/1361-6455/aad6cb