ATOMIC AND MOLECULAR PHYSICS |
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Elastic Scattering of Ultracold 23Na and 39K Atoms in the Singlet State |
HU Qiu-Bo1, ZHANG Yong-Sheng1, SUN Jin-Feng2 |
1Department of Mathemmatics and Science, Luoyang Institute of Science and Technology, Luoyang 4710232Department of Physics, Luoyang Normal College, Luoyang 471022 |
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Cite this article: |
HU Qiu-Bo, ZHANG Yong-Sheng, SUN Jin-Feng 2010 Chin. Phys. Lett. 27 023202 |
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Abstract The elastic scattering properties for collisions between ultracold 23Na and 39K atoms in the singlet state are investigated. Based on the recent theoretical and experimental results, the improved hybrid potential is presented for the singlet X1Σg+ ground state of NaK. By means of the Numerov and semiclassical methods, the values of the s-wave scattering length a for the singlet state are calculated to be 33.3757a0 and 37.9399a0, respectively. Pronounced shape resonances appear for the l = 1 partial wave for the X1Σg+ state. In addition, the s-wave scattering cross section, total cross section and energy positions of shape resonances for the X1Σg+ state are discussed.
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Keywords:
32.80.Cy
34.20.Cf
34.50.-s
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Received: 01 April 2009
Published: 08 February 2010
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