Spectroscopic studies of NaCs for the ground state asymptote of Na + Cs pairs |
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Authors: | O?Docenko M?Tamanis R?Ferber A?Pashov H?Kn?ckel Email author" target="_blank">E?TiemannEmail author |
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Institution: | 1.Department of Physics and Institute of Atomic Physics and Spectroscopy,University of Latvia,Riga,Latvia;2.Institute for Scientific Research in Telecommunications,Sofia,Bulgaria;3.Institut für Quantenoptik,Universit?t Hannover,Hannover,Germany |
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Abstract: | The ground state X
of NaCs was studied by laser induced fluorescence Fourier-transform spectroscopy. An accurate potential energy curve was
derived from more than 5000 transitions. This potential reproduces the experimental observations within their uncertainties
of
cm-1 and covers about 99.97% of the potential well depth. Few vibrational levels of the shallow state a
below the atomic ground state asymptote were observed. The identification is mainly done by the observed and quantitatively
interpreted molecular hyperfine structure applying atomic parameters of the ground states of Na and Cs. An estimated potential
curve for a
is reported which can be used together with that of X
for coupled channel calculations of cold collisions between Na and Cs. An example is given.
Electronic supplementary material to this article is available at and is accessible for authorized users.
Received: 10 September 2004, Published online: 23 November 2004
PACS:
31.50.Bc Potential energy surfaces for ground electronic states - 33.20.Kf Visible spectra - 33.20.Vq Vibration-rotation analysis
- 33.50.Dq Fluorescence and phosphorescence spectra
Supplementary tables (Tabs. I-III) are only available in electronic form at http: //www.eurphysj.org |
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Keywords: | |
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