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Chin. Phys. B, 2013, Vol. 22(10): 103401    DOI: 10.1088/1674-1056/22/10/103401
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

The effect of wave function orthogonality on the simultaneous ionization and excitation of helium

Liu Li-Juan (刘丽娟)a, Jia Chang-Chun (贾昌春)a, Zhang Li-Min (张立民)a, Chen Jiao-Jiao (陈姣姣)a, Chen Zhang-Jin (陈长进)b
a School of Physics and Material Science, Anhui University, Hefei 230601, China;
b Department of Physics, College of Science, Shantou University, Shantou 515063, China
Abstract  Within the framework of the first-order Born approximation, the triple differential cross sections (TDCSs) for simultaneous ionization and excitation of helium are calculated. The wave function of the ejected electron is chosen to be orthogonal or non-orthogonal to the wave function of the bound electron before ionization. It is found that the orthogonality has a strong effect on the TDCS, especially when plane waves and Coulomb waves are used to describe the projectile and the ejected electron.
Keywords:  simultaneous ionization and excitation      triple differential cross section (TDCS)      first-order Born approximation      orthogonality  
Received:  14 December 2012      Revised:  11 April 2013      Accepted manuscript online: 
PACS:  34.50.Fa (Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))  
Fund: Project supported by the Anhui University Doctoral Research Starting Foundation, China (Grant Nos. 02303319 and 33190203) and the National Natural Science Foundation of China (Grant No. 11274219).
Corresponding Authors:  Jia Chang-Chun     E-mail:  jcc@ustc.edu.cn

Cite this article: 

Liu Li-Juan (刘丽娟), Jia Chang-Chun (贾昌春), Zhang Li-Min (张立民), Chen Jiao-Jiao (陈姣姣), Chen Zhang-Jin (陈长进) The effect of wave function orthogonality on the simultaneous ionization and excitation of helium 2013 Chin. Phys. B 22 103401

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