The influence of isotope substitution of neon atom on the integral cross sections of rotational excitation in Ne–Na2 collisions

doi:10.1088/1674-1056/20/2/020301

中国物理B ›› 2011, Vol. 20 ›› Issue (2): 20301-020301.doi: 10.1088/1674-1056/20/2/020301

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The influence of isotope substitution of neon atom on the integral cross sections of rotational excitation in Ne–Na₂ collisions

臧华平¹, 李文峰¹, 程新路¹, 杨向东¹, 令狐荣锋²

(1)Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; (2)Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, China

收稿日期:2009-12-30 修回日期:2010-08-30 出版日期:2011-02-15 发布日期:2011-02-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10974139 and 10964002), the Doctoral Program Foundation of Institution of Higher Education of China (Grant No. 20050610010), the Science Technology Foundation of Guizhou Province of China (Grant No. [2009]2066) and Project of Aiding Elites' Research Condition of Guizhou Province (Grant No. TZJF-2008-42).

The influence of isotope substitution of neon atom on the integral cross sections of rotational excitation in Ne–Na₂ collisions

Zang Hua-Ping(臧华平)^a), Li Wen-Feng(李文峰)^a), Linghu Rong-Feng(令狐荣锋)^a)b), Cheng Xin-Lu(程新路)^a), and Yang Xiang-Dong(杨向东)^a)†

^a Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; ^b School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, China

Received:2009-12-30 Revised:2010-08-30 Online:2011-02-15 Published:2011-02-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10974139 and 10964002), the Doctoral Program Foundation of Institution of Higher Education of China (Grant No. 20050610010), the Science Technology Foundation of Guizhou Province of China (Grant No. [2009]2066) and Project of Aiding Elites' Research Condition of Guizhou Province (Grant No. TZJF-2008-42).

摘要/Abstract

摘要： This paper applies the multiple ellipsoid model to the ¹⁶Ne (²⁰Ne, ²⁸Ne, ³⁴Ne)--Na₂ collision systems, and calculates integral cross sections for rotational excitation at the incident energy of 190 meV. It can be seen that the accuracy of the integral cross sections can be improved by increasing the number of equipotential ellipsoid surfaces. Moreover, by analysing the differences of these integral cross sections, it obtains the change rules of the integral cross sections with the increase of rotational angular quantum number J', and with the change of the mass of isotope substitution neon atom. Finally, the contribution of different regions of the potential to inelastic cross sections for ²⁰Ne--Na₂ collision system is investigated at relative incident energy of 190 meV.

关键词: multiple hard-ellipsoid model, Ne isotopic atoms, integral cross sections, ellipsoid equipotential surface

Abstract: This paper applies the multiple ellipsoid model to the ¹⁶Ne (²⁰Ne, ²⁸Ne, ³⁴Ne)–Na₂ collision systems, and calculates integral cross sections for rotational excitation at the incident energy of 190 meV. It can be seen that the accuracy of the integral cross sections can be improved by increasing the number of equipotential ellipsoid surfaces. Moreover, by analysing the differences of these integral cross sections, it obtains the change rules of the integral cross sections with the increase of rotational angular quantum number J', and with the change of the mass of isotope substitution neon atom. Finally, the contribution of different regions of the potential to inelastic cross sections for ²⁰Ne–Na₂ collision system is investigated at relative incident energy of 190 meV.

Key words: multiple hard-ellipsoid model, Ne isotopic atoms, integral cross sections, ellipsoid equipotential surface

中图分类号: (Scattering theory)

03.65.Nk

03.65.Sq (Semiclassical theories and applications)

臧华平, 李文峰, 令狐荣锋, 程新路, 杨向东. The influence of isotope substitution of neon atom on the integral cross sections of rotational excitation in Ne–Na₂ collisions[J]. 中国物理B, 2011, 20(2): 20301-020301.

Zang Hua-Ping(臧华平), Li Wen-Feng(李文峰), Linghu Rong-Feng(令狐荣锋), Cheng Xin-Lu(程新路), and Yang Xiang-Dong(杨向东). The influence of isotope substitution of neon atom on the integral cross sections of rotational excitation in Ne–Na₂ collisions[J]. Chin. Phys. B, 2011, 20(2): 20301-020301.

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The influence of isotope substitution of neon atom on the integral cross sections of rotational excitation in Ne–Na₂ collisions

The influence of isotope substitution of neon atom on the integral cross sections of rotational excitation in Ne–Na₂ collisions

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