Hyperspherical study of Ne2Kr and Ne2Xe systems |
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Authors: | Li’e Xiao Cui Yao Xiaorong He Huili Han |
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Institution: | 1. College of Physical Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China 2. Guangxi Zhuang Autonomous Region Radiation Environment Supervision and Management Station, Nanning, 530222, Guangxi, China 3. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, Hubei, China
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Abstract: | We have calculated the ground state energies and rotational constants for the Ne2 Kr and Ne2 Xe systems, as well as their corresponding isotopes using the hyperspherical method. We used B-splines as basis function to expand channel functions and make the knot distribution of B-splines characterize the behavior of the channel function precisely. As a result, the extremely slow convergence of quantum mechanic calculation for these van der Waals trimers containing heavy element is improved greatly. The convergent rotational constants and the isotope shifts are obtained and compared with other theoretical and experimental values. Our results using newly proposed Tang-Toennies (TT) pair-wise potentials are consistent with that of Ernesti and Hutson’s calculation using HFD-B potentials, and give an improved agreement with experimental data. |
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Keywords: | hyperspherical method Tang-Toennies (TT) potential rotational constants B-splines |
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