| He-O_2转动激发截面的理论计算 |
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| 引用本文： | 彭勇,孙桂华,谢方军.He-O_2转动激发截面的理论计算[J].原子与分子物理学报,2000(4). |
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| 作者姓名： | 彭勇 孙桂华 谢方军 |
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| 作者单位： | 甘肃省张掖师范专科学校物理系!张掖734000，甘肃省张掖师范专科学校物理系!张掖734000，四川大学原子分子科学研究所，成都610065，海军工程大学研究生二队!武汉430033 |
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| 基金项目： | 国家自然科学基金!( 195 740 35 )，高等学校博士学科点专项科研基金!( 19990 6 10 15 ) |
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| 摘 要： | 用公认精确的密耦 (Close Coupling)方法、采用两种不同的相互作用势计算了He -O2 碰撞的态 态转动激发截面 (E =2 6.8meV) ,通过系统研究和计算发现 :低能散射时 ,He -O2 碰撞的弹性散射主要发生在小角部分 ,而非弹性转动激发主要发生在大角部分。研究表明 :转动激发截面对势能表面的方向性和散射角都非常敏感。
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| 关 键 词： | 转动激发 非弹性散射 密耦方法 |
Theoretical calculation of rotational-excitation cross section for He-O_2 |
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| PENG Yong ,SUN Gui hua ,XIE Fang jun.Theoretical calculation of rotational-excitation cross section for He-O_2[J].Journal of Atomic and Molecular Physics,2000(4). |
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| Authors: | PENG Yong SUN Gui hua XIE Fang jun |
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| Institution: | PENG Yong 1,SUN Gui hua 1,2,XIE Fang jun 3 |
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| Abstract: | State state rotational excitation cross sections have been calculated for He-O 2 collision by employing the accepted exact Close Coupling approximation method and two kinds of different interaction potentials at collision energy of 26.8 meV in this paper. it is found by systemic inverstigation and calculation that elastic scattering take place mainly at large scattering angle and inelastic rotational excitation chief at small scattering angle at low energy scattering for He O 2 system. It is shown that the rotational excitation cross sections are sensitive to the directionality of potential surface and scattering angle. |
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| Keywords: | rotational excitation inelastic scattering close coupling method |
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