Phys. Rev. A 69, 042503 (2004) [7 pages]Potential of the ground state of NaRbReceived 16 October 2003; published 2 April 2004 The X 1∑+ state of NaRb was studied by Fourier-transform spectroscopy. An accurate potential energy curve was derived from more than 8800 transitions in isotopomers 23Na85Rb and 23Na87Rb. This potential reproduces the experimental observations within their uncertainties of 0.003 cm−1–0.007 cm−1. The outer classical turning point of the last observed energy level (v″=76, J″=27) lies at ≈12.4 Å, leading to an energy of 4.5 cm−1 below the ground-state asymptote. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.042503
DOI:
10.1103/PhysRevA.69.042503
PACS:
31.50.Bc, 33.20.Kf, 33.20.Vq, 33.50.Dq
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