1. Global analysis of data on the spin-orbit-coupled A ¹Σu+ and b ³∏u states of Cs2.
- Author
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Bai, Jianmei, Ahmed, E. H., Beser, B., Guan, Y., Kotochigova, S., Lyyra, A. M., Ashman, S., Wolfe, C. M., Huennekens, J., Feng Xie, Dan Li, Li Li, Tamanis, M., Ferber, R., Drozdova, A., Pazyuk, E., Stolyarov, A. V., Danzl, J. G., Nagerl, H.-C., and Bouloufa, N.
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CESIUM , *DIMERS , *FOURIER transform spectroscopy , *SPECTRUM analysis , *POLARIZATION spectroscopy - Abstract
We present experimentally derived potential curves and spin-orbit interaction functions for the strongly perturbed A ¹Σu+ and b³Π, states of the cesium dimer. The results are based on data from several sources. Laser-induced fluorescence Fourier transform spectroscopy (LIF FTS) was used some time ago in the Laboratoire Aimé Cotton primarily to study the X ¹Σg+ state. More recent work at Tsinghua University provides information from moderate resolution spectroscopy on the lowest levels of the b ³Π±0u state as well as additional high-resolution data. From Innsbruck University, we have precision data obtained with cold Cs2 molecules. Recent data from Temple University was obtained using the optical-optical double resonance polarization spectroscopy technique, and finally, a group at the University of Latvia has added additional LIF FTS data. In the Hamiltonian matrix, we have used analytic potentials (the expanded Morse oscillator form) with both finite-difference (FD) coupled-channel and discrete variable representation (DVR) calculations of the term values. Fitted diagonal and off-diagonal spin-orbit functions are obtained and compared with ab initio results from Temple and Moscow State universities. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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