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Based on the potential parameter Ω, which was defined as energy deposits ratio of incidence ion with target ion after double electron capture, the selection rule between double electron capture and transfer ionization of helium target induced by Aq+ (q=4,5,6,7) ions was studied. It is found that there is a cross point for the cross-section ratio curve of double electron capture and transfer ionization at Ω=10, and for ΩΩ≥10 the transfer ionization is a key reaction channel of double electron transfer.
[1] ［1］Rescigno T N, Baertschy M, Isaacs W A 1999 Science 286 2474
[2] ［2］McCurdy C W, Rescigno T N 2000 Phys. Rev. A 62 32712
[3] ［3］McGuire J H, Godunov A L, Tolmanov S G 2001 Phys. Rev. A 63 052706
[4] ［4］Cao S P, Ma X W, Dorn A, Dürr M, Ullrich J 2007 Acta Phys. Sin. 56 6386 (in Chinese) ［曹士娉、 马新文、Dorn A、 Dürr M、 Ullrich J 2007 56 6386］
[5] ［5］Andersson H, Astner G, Cederquist H 1988 J. Phys. B 21 L187
[6] ［6］Iwai T, Kaneko Y, Kimura M 1984 J. Phys. B 17 L95
[7] ［7］Tawara H, Iwai T, Kaneko Y 1985 J. Phys. B 18 337
[8] ［8］Mann R 1986 Z. Phys. D 3 85
[9] ［9］Selberg N, Biedermann C, Cederquist H 1997 Phys. Rev. A 56 6
[10] ］Fléchard X, Harel C, Jouin H 2001 J. Phys. B 34 2759
[11] ］Cai X H, Chen X M, Shen Z Y 1996 Nucl. Instum. Meth. Phys. Res. B 114 208
[12] ］Cai X H, Shen Z Y, Chen X M 1997 Atca Phys. Sin. 46 6 (in Chinese) ［蔡晓红、申自勇、陈熙萌1997 46 6 ］
[13] ］Cao Z R, Cai X H, Yu D Y 2004 Atca Phys. Sin. 53 2943 (in Chinese) ［曹柱荣、蔡晓红、于得洋 2004 53 2943 ］
[14] ］Müller A, Groh W, Salzborn E 1983 Phys. Rev.Lett. 51 107
[15] ］Xu K Z 2000 Advanced Atomic and Molecular Physics (Beijing: Science Press) (in Chinese) ［徐克尊 2000 高等原子分子物理学 (北京:科学出版社)］
[16] ］Justiniano E, Cocke C L, Gray T J 1984 Phys. Rev. A 29 1088
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[1] ［1］Rescigno T N, Baertschy M, Isaacs W A 1999 Science 286 2474
[2] ［2］McCurdy C W, Rescigno T N 2000 Phys. Rev. A 62 32712
[3] ［3］McGuire J H, Godunov A L, Tolmanov S G 2001 Phys. Rev. A 63 052706
[4] ［4］Cao S P, Ma X W, Dorn A, Dürr M, Ullrich J 2007 Acta Phys. Sin. 56 6386 (in Chinese) ［曹士娉、 马新文、Dorn A、 Dürr M、 Ullrich J 2007 56 6386］
[5] ［5］Andersson H, Astner G, Cederquist H 1988 J. Phys. B 21 L187
[6] ［6］Iwai T, Kaneko Y, Kimura M 1984 J. Phys. B 17 L95
[7] ［7］Tawara H, Iwai T, Kaneko Y 1985 J. Phys. B 18 337
[8] ［8］Mann R 1986 Z. Phys. D 3 85
[9] ［9］Selberg N, Biedermann C, Cederquist H 1997 Phys. Rev. A 56 6
[10] ］Fléchard X, Harel C, Jouin H 2001 J. Phys. B 34 2759
[11] ］Cai X H, Chen X M, Shen Z Y 1996 Nucl. Instum. Meth. Phys. Res. B 114 208
[12] ］Cai X H, Shen Z Y, Chen X M 1997 Atca Phys. Sin. 46 6 (in Chinese) ［蔡晓红、申自勇、陈熙萌1997 46 6 ］
[13] ］Cao Z R, Cai X H, Yu D Y 2004 Atca Phys. Sin. 53 2943 (in Chinese) ［曹柱荣、蔡晓红、于得洋 2004 53 2943 ］
[14] ］Müller A, Groh W, Salzborn E 1983 Phys. Rev.Lett. 51 107
[15] ］Xu K Z 2000 Advanced Atomic and Molecular Physics (Beijing: Science Press) (in Chinese) ［徐克尊 2000 高等原子分子物理学 (北京:科学出版社)］
[16] ］Justiniano E, Cocke C L, Gray T J 1984 Phys. Rev. A 29 1088
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