Physics – Atomic Physics
Scientific paper
2003-10-16
Physics
Atomic Physics
8 pages, 6 figures and 2 tables
Scientific paper
10.1103/PhysRevA.69.042503
The X$^{1}\Sigma ^{+}$ state of NaRb was studied by Fourier transform spectroscopy. An accurate potential energy curve was derived from more than 8800 transitions in isotopomers $^{23}$Na$^{85}$Rb and $^{23}$Na$^{87}$Rb. This potential reproduces the experimental observations within their uncertainties of 0.003 \rcm to 0.007 \rcm. The outer classical turning point of the last observed energy level ($v''=76$, $J''=27$) lies at $\approx 12.4$ \AA, leading to a energy of 4.5 \rcm below the ground state asymptote.
Docenko O.
Ferber Robert R.
Knoeckel Horst
Pashov Asen
Tamanis Maris
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