氦同位素原子与钠分子碰撞转动激发积分散射截面的理论计算

李文峰; 令狐荣锋; 程新路; 杨向东

doi:10.7498/aps.59.4591

摘要

多体刚性椭球模型是一种比较精确的描述氦原子与钠分子碰撞的理论模型.本文用多体刚性椭球模型计算了不同能量下He的同位素原子3He,4He,7He,10He与Na2分子碰撞的转动激发积分散射截面,表明增加椭球等势面个数可以得到更准确的转动激发积分散射截面;总结出3He,4He,7He,10He-Na2

关键词:

Multiple hard-ellipsoid model is a theoretical model which can more accurately decribe collisions between He atom and Na2 molecule. In this paper, we adopted the multiple hard-ellipsoid model to calculate the integral cross sections of rotational excitation for collisions in 3He,4He,7He,10He-Na2 systems at different relative incidence energies. This study shows that we can improve the accuracy of the results by increasing the number of equipotential ellipsoid surfaces. Moreover, we find that the integral cross sections of rotational excitation change with the relative incidence energy and reduced mass of the system. Finally, at relative incidence energy of 100 meV, we investigate the influence of different regions of the intermolecular potential on integral cross sections of rotational excitation in 4He-Na2 collisions.

Keywords:

作者及机构信息

(1)四川大学原子与分子物理研究所,成都 610065; (2)四川大学原子与分子物理研究所,成都 610065; 贵州师范大学物理与电子科学学院,贵阳 550001

基金项目: 国家自然科学基金(批准号:10974139,10964002)、高等学校博士学科点专项科研基金(批准号:20050610010)、贵州省教育厅自然科学基金重点项目(批准号:2005105)、贵州省优秀科技教育人才省长基金(批准号:2006(113))、贵州省科学技术基金(批准号:[2009]2066)和安徽省高校省级自然科学研究重点项目(批准号:KJ2010A227)资助的课题.

Authors and contacts

(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,Guzhou Normal University, Guiyang 550001, China

参考文献

[1]	Marks A J 1994 J. Chem. Soc. Faraday Trans. 90 2857
[2]	Clare S, Marks A J, McCaffery A J 2000 J. Phys. Chem. A 104 7181
[3]	McCaffery A J 2004 Phys. Chem. Chem. Phys. 6 1637
[4]	Osborne M A, McCaffery A J 1994 J. Chem. Phys.101 5604
[5]	Yu C R, Wang R K, Yang X D, Yi X C 2008 Acta Phys. Sin. 57 2906 (in Chinese) [余春日、汪荣凯、杨向东、尹训昌2008 物理学报 57 2906]
[6]	Wang R K, Yu C R, Shen G X, Gong L X, Yang X D 2009 Acta Phys. Sin. 58 3084 [汪荣凯、余春日、沈光先、龚伦训、杨向东 2009物理学报 58 3084] 〖7] Yu C R, Huang S Z, Shi S H, Cheng X L, Yang X D 2007 Acta Phys. Sin. 56 5739 (in Chinese) [余春日、黄时中、史守华、程新路、杨向东2007 物理学报 56 5739]
[7]	Wang R K, Shen G X, Yu C R, Yang X D 2008 Acta Phys. Sin. 57 6932 (in Chinese) [汪荣凯、沈光先、余春日、杨向东2008物理学报 57 6932]
[8]	Yu C R, Huang S Z, Feng E Y, Wang R K, Cheng X L, Yang X D 2006 Acta Phys. Sin. 55 2215 (in Chinese) [余春日、黄时中、凤尔银、汪荣凯、程新路、杨向东2006物理学报55 2215]
[9]	Shen G X, Wang R K, Linghu R F, Yang X D 2008 Acta Phys. Sin. 57 155 (in Chinese) [沈光先、汪荣凯、令狐荣锋、杨向东2008物理学报57 155 ]
[10]	Yang C L, Zhu Z H 1999 Acta Phys. Sin. 48 1852 (in Chinese)[杨传路、朱正和1999 物理学报 48 1852]
[11]	Belchior J C, Murrell J N 1994 J. Chem. Phys. 101 2016
[12]	Jone P L, Hefter U, Mattheus A, Witt J, Bergmann K, Miller W, Meyer W, Schinke R 1982 Phys. Rev. A 26 1283
[13]	McCaffery A J, Alwahabi Z T 1991 Phys. Rev. A 43 611
[14]	McCaffery A J, Alwahabi Z T, Osborne M A, Williams C J 1993 J. Chem. Phys. 98 4586
[15]	Agrawal P M, Garg V, Patidar K R 1993 Chem. Phys. Lett. 208 204
[16]	Mu R W, Li Y L, Ji X M, Yin J P 2006 Acta Phys. Sin. 55 6333 (in Chinese) [沐仁旺、李雅丽、纪宪明、印建平 2006 物理学报 55 6333]
[17]	Mackie M, Collin A, Javanainen J 2005 Phys. Rev. A 71 017601
[18]	DeMille D 2002 Phys. Rev. Lett. 88 067901
[19]	Góral K, Santos L, Lewenstein M 2002 Phys. Rev. Lett. 88 170406
[20]	Sun X P, Feng Z F, Li W D, Jia S T 2007 Acta Phys. Sin. 56 5727 (in Chinese) [孙晓鹏、冯志芳、李卫东、贾锁堂 2007 物理学报 56 5727]
[21]	Zhou S Y, Xu Z, Qu Q Z, Zhou S Y, Liu L, Wang Y Z 2009 Acta Phys. Sin. 58 1590 (in Chinese) [周蜀渝、徐震、屈求智、周善钰、刘亮、王育竹 2009物理学报 58 1590]
[22]	Bowman J M 1979 Chem. Phys. Lett. 62 309
[23]	Schepper W, Ross U, Beck D 1979 Z. Phys. A 290 131
[24]	Schinke R, Muller W, Meyer W, McGuire P 1981 J. Chem. Phys. 74 3916
[25]	Jiang G, Xie H P, Tan M L, Zhu Z H 2000 Acta Phys. Sin. 49 665 (in Chinese)[蒋刚、谢洪平、谭明亮、朱正和 2000 物理学报 49 665]
[26]	Shen G X, Wang R K, Linghu R F, Yang X D 2009 Acta Phys. Sin. 58 6 (in Chinese) [沈光先、汪荣凯、令狐荣锋、杨向东 2009物理学报 58 6]

施引文献

[1]	Marks A J 1994 J. Chem. Soc. Faraday Trans. 90 2857
[2]	Clare S, Marks A J, McCaffery A J 2000 J. Phys. Chem. A 104 7181
[3]	McCaffery A J 2004 Phys. Chem. Chem. Phys. 6 1637
[4]	Osborne M A, McCaffery A J 1994 J. Chem. Phys.101 5604
[5]	Yu C R, Wang R K, Yang X D, Yi X C 2008 Acta Phys. Sin. 57 2906 (in Chinese) [余春日、汪荣凯、杨向东、尹训昌2008 物理学报 57 2906]
[6]	Wang R K, Yu C R, Shen G X, Gong L X, Yang X D 2009 Acta Phys. Sin. 58 3084 [汪荣凯、余春日、沈光先、龚伦训、杨向东 2009物理学报 58 3084] 〖7] Yu C R, Huang S Z, Shi S H, Cheng X L, Yang X D 2007 Acta Phys. Sin. 56 5739 (in Chinese) [余春日、黄时中、史守华、程新路、杨向东2007 物理学报 56 5739]
[7]	Wang R K, Shen G X, Yu C R, Yang X D 2008 Acta Phys. Sin. 57 6932 (in Chinese) [汪荣凯、沈光先、余春日、杨向东2008物理学报 57 6932]
[8]	Yu C R, Huang S Z, Feng E Y, Wang R K, Cheng X L, Yang X D 2006 Acta Phys. Sin. 55 2215 (in Chinese) [余春日、黄时中、凤尔银、汪荣凯、程新路、杨向东2006物理学报55 2215]
[9]	Shen G X, Wang R K, Linghu R F, Yang X D 2008 Acta Phys. Sin. 57 155 (in Chinese) [沈光先、汪荣凯、令狐荣锋、杨向东2008物理学报57 155 ]
[10]	Yang C L, Zhu Z H 1999 Acta Phys. Sin. 48 1852 (in Chinese)[杨传路、朱正和1999 物理学报 48 1852]
[11]	Belchior J C, Murrell J N 1994 J. Chem. Phys. 101 2016
[12]	Jone P L, Hefter U, Mattheus A, Witt J, Bergmann K, Miller W, Meyer W, Schinke R 1982 Phys. Rev. A 26 1283
[13]	McCaffery A J, Alwahabi Z T 1991 Phys. Rev. A 43 611
[14]	McCaffery A J, Alwahabi Z T, Osborne M A, Williams C J 1993 J. Chem. Phys. 98 4586
[15]	Agrawal P M, Garg V, Patidar K R 1993 Chem. Phys. Lett. 208 204
[16]	Mu R W, Li Y L, Ji X M, Yin J P 2006 Acta Phys. Sin. 55 6333 (in Chinese) [沐仁旺、李雅丽、纪宪明、印建平 2006 物理学报 55 6333]
[17]	Mackie M, Collin A, Javanainen J 2005 Phys. Rev. A 71 017601
[18]	DeMille D 2002 Phys. Rev. Lett. 88 067901
[19]	Góral K, Santos L, Lewenstein M 2002 Phys. Rev. Lett. 88 170406
[20]	Sun X P, Feng Z F, Li W D, Jia S T 2007 Acta Phys. Sin. 56 5727 (in Chinese) [孙晓鹏、冯志芳、李卫东、贾锁堂 2007 物理学报 56 5727]
[21]	Zhou S Y, Xu Z, Qu Q Z, Zhou S Y, Liu L, Wang Y Z 2009 Acta Phys. Sin. 58 1590 (in Chinese) [周蜀渝、徐震、屈求智、周善钰、刘亮、王育竹 2009物理学报 58 1590]
[22]	Bowman J M 1979 Chem. Phys. Lett. 62 309
[23]	Schepper W, Ross U, Beck D 1979 Z. Phys. A 290 131
[24]	Schinke R, Muller W, Meyer W, McGuire P 1981 J. Chem. Phys. 74 3916
[25]	Jiang G, Xie H P, Tan M L, Zhu Z H 2000 Acta Phys. Sin. 49 665 (in Chinese)[蒋刚、谢洪平、谭明亮、朱正和 2000 物理学报 49 665]
[26]	Shen G X, Wang R K, Linghu R F, Yang X D 2009 Acta Phys. Sin. 58 6 (in Chinese) [沈光先、汪荣凯、令狐荣锋、杨向东 2009物理学报 58 6]

计量

文章访问数: 7437
PDF下载量: 686
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

搜索

留言板