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The triple differential cross section for electron impact ionization of helium in the perpendicular geometry is calculated by use of BBK model and modified BBK model. The results of the present work are compared with experimental data. The structure of the cross section is analysed and the exchange effects are discussed systematically.
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Keywords:
- DS3C model /
- middle peak /
- screening effects /
- exchange effects
[1] Catoire F, Staicu-Casagrande E M, Nekkab M, Cappello C D, Bartschat K, Lahmam-Bennani A 2006 J. Phys. B: At. Mol. Opt. Phys. 39 2827
[2] Yang H, Gao K, Zhang S M 2007 Acta Phys. Sin. 56 5202 (in Chinese)[杨 欢、高 矿、张穂萌 2007 物理学报 56 5202]
[3] [4] Drr M, Dimopoulou C, Najjari B, Dorn A, Bartschat K, Bray I, Fursa D V, Chen Z J, Madison D H, Ullrich J 2008 Phys. Rev. A 77 32717
[5] [6] [7] Sun S Y, Jia X F, Miao X Y, Zhang J F, Xie Y, Li X W, Shi W Q 2009 Chin. Phys. B 18 2744
[8] [9] Gao R J, Gei Z M 2010 Acta Phys. Sin. 59 1702 (in Chinese)[高瑞军、葛自明 2010 物理学报 59 1702]
[10] [11] Ren X G, Senftleben A, Pflger T, Dorn A, Bartschat K, Ullrich J 2010 J. Phys. B: At. Mol. Opt. Phys. 43 35202
[12] Brauner M, Briggs J S, Klar H 1989 J. Phys. B: At. Mol. Opt. Phys. 22 2265
[13] [14] [15] Berakdar J, Briggs J S 1994 Phys. Rev. Lett. 72 3799
[16] Zhang S M 2000 J. Phys. B: At. Mol. Opt. Phys. 33 3545
[17] [18] [19] Gao K, Yang H, Zhang S M, Wu X J 2008 J. At. Mol. Phys. 25 0683 (in Chinese)[高 矿、杨 欢、张穂萌、吴兴举 2008 原子与分子物理学报 25 0683]
[20] Murray A J, Read F H 1993 Phys. Rev. A 47 3724
[21] [22] [23] Murray A J, Read F H 1993 J. Phys. B: At. Mol. Opt. Phys. 26 L359
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[1] Catoire F, Staicu-Casagrande E M, Nekkab M, Cappello C D, Bartschat K, Lahmam-Bennani A 2006 J. Phys. B: At. Mol. Opt. Phys. 39 2827
[2] Yang H, Gao K, Zhang S M 2007 Acta Phys. Sin. 56 5202 (in Chinese)[杨 欢、高 矿、张穂萌 2007 物理学报 56 5202]
[3] [4] Drr M, Dimopoulou C, Najjari B, Dorn A, Bartschat K, Bray I, Fursa D V, Chen Z J, Madison D H, Ullrich J 2008 Phys. Rev. A 77 32717
[5] [6] [7] Sun S Y, Jia X F, Miao X Y, Zhang J F, Xie Y, Li X W, Shi W Q 2009 Chin. Phys. B 18 2744
[8] [9] Gao R J, Gei Z M 2010 Acta Phys. Sin. 59 1702 (in Chinese)[高瑞军、葛自明 2010 物理学报 59 1702]
[10] [11] Ren X G, Senftleben A, Pflger T, Dorn A, Bartschat K, Ullrich J 2010 J. Phys. B: At. Mol. Opt. Phys. 43 35202
[12] Brauner M, Briggs J S, Klar H 1989 J. Phys. B: At. Mol. Opt. Phys. 22 2265
[13] [14] [15] Berakdar J, Briggs J S 1994 Phys. Rev. Lett. 72 3799
[16] Zhang S M 2000 J. Phys. B: At. Mol. Opt. Phys. 33 3545
[17] [18] [19] Gao K, Yang H, Zhang S M, Wu X J 2008 J. At. Mol. Phys. 25 0683 (in Chinese)[高 矿、杨 欢、张穂萌、吴兴举 2008 原子与分子物理学报 25 0683]
[20] Murray A J, Read F H 1993 Phys. Rev. A 47 3724
[21] [22] [23] Murray A J, Read F H 1993 J. Phys. B: At. Mol. Opt. Phys. 26 L359
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