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Chinese Physics Letters

Elastic Scattering of Ultracold 23 Na and 39 K Atoms in the Singlet State

Hu Qiu-Bo, Zhang Yong-Sheng, Sun Jin-Feng

Published Feb 1, 2010• 1 citation
Publisher

Abstract

The elastic scattering properties for collisions between ultracold Na and K atoms in the singlet state are investigated. Based on the recent theoretical and experimental results, the improved hybrid potential is presented for the singlet X 1 Σ g + 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 33.3757 a 0 and 37.9399 a 0 , respectively. Pronounced shape resonances appear for the l = 1 partial wave for the X 1 Σ g + state. In addition, the s-wave scattering cross section, total cross section and energy positions of shape resonances for the X 1 Σ g + state are discussed.

DOI
10.1088/0256-307x/27/2/023202

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