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采用修正的扭曲波玻恩近似方法, 在共面不对称几何条件下, 计算了能量为70.8 eV电子与Ar(3p)碰撞电离的(e, 2e)三重微分截面, 并与最新实验数据进行了比较. 结果表明电子交换效应和后碰撞相互作用在低能电子碰撞的(e, 2e)过程中起着重要作用.
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关键词:
- (e,2e)三重微分截面 /
- 扭曲波玻恩近似 /
- 后碰撞相互作用 /
- 电子交换效应
(e, 2e) triple differential cross sections for the ionization of Ar (3p) by 70.8 eV electron impact are calculated in the coplanar asymmetric geometry using the modified distorted-wave Born approximation, and compared with the recent experimental data of Ren et al. [Ren et al. 2012 Phys. Rev. A 85 032702]. The results show that electron exchange effect and post-collision interaction play an important role in the (e, 2e) process of low-energy electron impact.-
Keywords:
- (e,2e) triple differential cross section /
- distorted-wave Born approximation /
- post-collision interaction /
- electron exchange effect
[1] Ehrhardt H, Schulz M, Tekaat T, Willmann K 1969 Phys. Rev. Lett. 22 89
[2] Ehrhardt H, Jung K, Knoth G, Schlemmer P 1986 Z. Phys. D 1 3
[3] Lahmam-Bennani A 1991 J. Phys. B: At. Mol. Opt. Phys. 24 2401
[4] Murray A J 2005 Phys. Rev. A 72 062711
[5] Nixon K L, Murray A J, Kaiser C 2010 J. Phys. B: At. Mol. Opt. Phys. 43 085202
[6] Ren X G, Senftleben A, Pflger T, Dorn A, Bartschat K, Ullrich J 2010 J. Phys. B: At. Mol. Opt. Phys. 43 035202
[7] Ren X G, Senftleben A, Pflger T, Dorn A, Bartschat K, Ullrich J 2011 Phys. Rev. A 83 052714
[8] Ren X G, Pflger T, Ullrich J, Zatsarinny O, Bartschat K, Madison D, Dorn A 2012 Phys. Rev. A 85 032702
[9] Bray I 1997 Phys. Rev. Lett. 78 4721
[10] Berakdar J 1996 Phys. Rev. A 53 2314
[11] Hargreaves L R, Stevenson M A, Lohmann B 2010 J. Phys. B: At. Mol. Opt. Phys. 43 205202
[12] Naja A, Staicu Casagrande E M, Lahmam-Bennani A, Stevenson M, Lohmann B, Dal Cappello C, Bartschat K, Kheifets A, Bray I, Fursa D V 2008 J. Phys. B: At. Mol. Opt. Phys. 41 085205
[13] Bartschat K, Fursa D V, Bray I 2010 J. Phys. B: At. Mol. Opt. Phys. 43 125202
[14] McCarthy I E 1995 Aust. J. Phys. 48 1
[15] Prideaux A, Madison D H 2005 Phys. Rev. A 72 032702
[16] Hu X Y, Zhou Y J 2008 Phys. Lett. A 372 4809
[17] Wu X J, Chen X J, Shan X, Chen L Q, Xu K Z 2004 Chin. Phys. 13 1857
[18] Gao R J, Ge Z M 2010 Acta Phys. Sin. 59 1702 (in Chinese) [高瑞军, 葛自明 2010 59 1702]
[19] Zhou L X, Yan Y G 2008 Acta Phys. Sin. 57 7619 (in Chinese) [周丽霞, 燕友果 2008 57 7619]
[20] Biava D A, Bartschat K, Saha H P, Madison D H 2002 J. Phys. B: At. Mol. Opt. Phys. 35 5121
[21] Furness J B, McCarthy I E 1973 J. Phys. B: At. Mol. Opt. Phys. 6 2280
[22] Perdew J P, Zunger A 1981 Phys. Rev. B 23 5048
[23] Bartschat K, Burke P G 1988 J. Phys. B: At. Mol. Opt. Phys. 21 2969
[24] Bartschat K, Vorov O 2005 Phys. Rev. A 72 022728
[25] Zatsarinny O 2006 Comput. Phys. Commun. 174 273
[26] Zatsarinny O, Bartschat K 2012 Phys. Rev. A 85 032708
[27] Clementi E, Roetti C 1974 At. Data Nucl. Data Tables 14 177
[28] Gianturco F A, Scialla S 1987 J. Phys. B: At. Mol. Opt. Phys. 20 3171
[29] Prideaux A, Madison D H 2003 Phys. Rev. A 67 052710
[30] Jones S, Madison D H, Franz A, Altick P L 1993 Phys. Rev. A 48 R22
[31] Ward S, Macek J 1994 Phys. Rev. A 49 1049
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[1] Ehrhardt H, Schulz M, Tekaat T, Willmann K 1969 Phys. Rev. Lett. 22 89
[2] Ehrhardt H, Jung K, Knoth G, Schlemmer P 1986 Z. Phys. D 1 3
[3] Lahmam-Bennani A 1991 J. Phys. B: At. Mol. Opt. Phys. 24 2401
[4] Murray A J 2005 Phys. Rev. A 72 062711
[5] Nixon K L, Murray A J, Kaiser C 2010 J. Phys. B: At. Mol. Opt. Phys. 43 085202
[6] Ren X G, Senftleben A, Pflger T, Dorn A, Bartschat K, Ullrich J 2010 J. Phys. B: At. Mol. Opt. Phys. 43 035202
[7] Ren X G, Senftleben A, Pflger T, Dorn A, Bartschat K, Ullrich J 2011 Phys. Rev. A 83 052714
[8] Ren X G, Pflger T, Ullrich J, Zatsarinny O, Bartschat K, Madison D, Dorn A 2012 Phys. Rev. A 85 032702
[9] Bray I 1997 Phys. Rev. Lett. 78 4721
[10] Berakdar J 1996 Phys. Rev. A 53 2314
[11] Hargreaves L R, Stevenson M A, Lohmann B 2010 J. Phys. B: At. Mol. Opt. Phys. 43 205202
[12] Naja A, Staicu Casagrande E M, Lahmam-Bennani A, Stevenson M, Lohmann B, Dal Cappello C, Bartschat K, Kheifets A, Bray I, Fursa D V 2008 J. Phys. B: At. Mol. Opt. Phys. 41 085205
[13] Bartschat K, Fursa D V, Bray I 2010 J. Phys. B: At. Mol. Opt. Phys. 43 125202
[14] McCarthy I E 1995 Aust. J. Phys. 48 1
[15] Prideaux A, Madison D H 2005 Phys. Rev. A 72 032702
[16] Hu X Y, Zhou Y J 2008 Phys. Lett. A 372 4809
[17] Wu X J, Chen X J, Shan X, Chen L Q, Xu K Z 2004 Chin. Phys. 13 1857
[18] Gao R J, Ge Z M 2010 Acta Phys. Sin. 59 1702 (in Chinese) [高瑞军, 葛自明 2010 59 1702]
[19] Zhou L X, Yan Y G 2008 Acta Phys. Sin. 57 7619 (in Chinese) [周丽霞, 燕友果 2008 57 7619]
[20] Biava D A, Bartschat K, Saha H P, Madison D H 2002 J. Phys. B: At. Mol. Opt. Phys. 35 5121
[21] Furness J B, McCarthy I E 1973 J. Phys. B: At. Mol. Opt. Phys. 6 2280
[22] Perdew J P, Zunger A 1981 Phys. Rev. B 23 5048
[23] Bartschat K, Burke P G 1988 J. Phys. B: At. Mol. Opt. Phys. 21 2969
[24] Bartschat K, Vorov O 2005 Phys. Rev. A 72 022728
[25] Zatsarinny O 2006 Comput. Phys. Commun. 174 273
[26] Zatsarinny O, Bartschat K 2012 Phys. Rev. A 85 032708
[27] Clementi E, Roetti C 1974 At. Data Nucl. Data Tables 14 177
[28] Gianturco F A, Scialla S 1987 J. Phys. B: At. Mol. Opt. Phys. 20 3171
[29] Prideaux A, Madison D H 2003 Phys. Rev. A 67 052710
[30] Jones S, Madison D H, Franz A, Altick P L 1993 Phys. Rev. A 48 R22
[31] Ward S, Macek J 1994 Phys. Rev. A 49 1049
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