Details
| Original language | English |
|---|---|
| Article number | 065102 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 53 |
| Issue number | 6 |
| Publication status | Published - 4 Mar 2020 |
Abstract
We analyse rovibrational transitions of the (2)2Σ+-X(1)2Σ+ system of LiSr and find the energy levels of the (2)2Σ+ state to be perturbed by coupling between the (2)2Σ+ and (1)2Π states. We present an analysis of the coupled system yielding molecular parameters for the lowest vibrational levels of the (2)2Σ+ state and for higher vibrational levels of the (1)2Π state together with molecular coupling constants. Improved Dunham coefficients for the rovibrational levels of the X(1)2Σ+ state are also obtained, where the correlation with the parameters of the excited states is removed completely.
Keywords
- molecular spectra, potential energy surfaces, rotation, vibration and vibration-rotation constants
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 53, No. 6, 065102, 04.03.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The coupled system (2)2Σ+ and (1)2Π of 7Li88Sr
AU - Schwanke, Erik
AU - Gerschmann, Julia
AU - Knöckel, Horst
AU - Ospelkaus, Silke
AU - Tiemann, Eberhard
PY - 2020/3/4
Y1 - 2020/3/4
N2 - We analyse rovibrational transitions of the (2)2Σ+-X(1)2Σ+ system of LiSr and find the energy levels of the (2)2Σ+ state to be perturbed by coupling between the (2)2Σ+ and (1)2Π states. We present an analysis of the coupled system yielding molecular parameters for the lowest vibrational levels of the (2)2Σ+ state and for higher vibrational levels of the (1)2Π state together with molecular coupling constants. Improved Dunham coefficients for the rovibrational levels of the X(1)2Σ+ state are also obtained, where the correlation with the parameters of the excited states is removed completely.
AB - We analyse rovibrational transitions of the (2)2Σ+-X(1)2Σ+ system of LiSr and find the energy levels of the (2)2Σ+ state to be perturbed by coupling between the (2)2Σ+ and (1)2Π states. We present an analysis of the coupled system yielding molecular parameters for the lowest vibrational levels of the (2)2Σ+ state and for higher vibrational levels of the (1)2Π state together with molecular coupling constants. Improved Dunham coefficients for the rovibrational levels of the X(1)2Σ+ state are also obtained, where the correlation with the parameters of the excited states is removed completely.
KW - molecular spectra
KW - potential energy surfaces
KW - rotation
KW - vibration and vibration-rotation constants
UR - http://www.scopus.com/inward/record.url?scp=85082680211&partnerID=8YFLogxK
U2 - 10.1088/1361-6455/ab68f8
DO - 10.1088/1361-6455/ab68f8
M3 - Article
AN - SCOPUS:85082680211
VL - 53
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
SN - 0953-4075
IS - 6
M1 - 065102
ER -