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Title: Interaction potentials and ultracold scattering cross sections for the 7Li+-7Li ion-atom system
Authors: Pandey, A.
Niranjan, M.
Joshi, N.
Rangwala, S.A.
+2 Co-Authors
Issue Date: May-2020
Publisher: American Physical Society
Citation: Physical Review A, 2020, Vol.101, Article. No.052702, p10
Abstract: We calculate the isotope independent Li+-Li potential energy curves for the electronic ground and first excited states. Scattering phase shifts and total scattering cross section for the 7Li+-7Li collision are calculated with emphasis on the ultra-low energy domain down to the s-wave regime. The effect of physically motivated alterations on the calculated potential energy curves is used to determine the bound of accuracy of the low-energy scattering parameters for the ion-atom system. It is found that the scattering length for the A2Σ+u state, au = 1325 a0, is positive and has well-constrained bounds. For the X2Σ+g state, the scattering length, ag = 20465 a0 has a large magnitude as it is sensitive to the restrained change of the potential, due to the presence of a vibrational state in the vicinity of the dissociation limit.
Description: Open Access
ISSN: 2469-9926
2469-9934 (online)
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Copyright: 2020 American Physical Society
Appears in Collections:Research Papers (LAMP)

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