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Atoms 2016, 4(1), 10; doi:10.3390/atoms4010010

Relativistic Ionization of Hydrogen Atoms by Positron Impact

Faculty Polydisciplinary, Interdisciplinary Laboratory for Research in Science and Technology, P.O. Box 523, Sultan Moulay Slimane University, Béni Mellal 23000, Morocco
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Academic Editors: Chi Yu Hu and Anand K. Bhatia
Received: 30 December 2015 / Revised: 22 February 2016 / Accepted: 26 February 2016 / Published: 4 March 2016
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Abstract

Relativistic triple differential cross-sections (TDCS) for ionization of hydrogen atoms by positron impact have been calculated in the symmetric coplanar geometry. We have used Dirac wave functions to describe free electron’s and positron’s sates. The relativistic formalism is examined by taking the non relativistic limit. Present results are compared with those for the corresponding electron-impact case. In the first Born approximation, we found that the TDCS for positron impact ionization exceeds that for electron impact for all energies in accordance with the result obtained by several other theories. View Full-Text
Keywords: positron; ionization hydrogen atom; QED calculations; relativistic scattering theory; 34.80.Dp; 12.20.Ds positron; ionization hydrogen atom; QED calculations; relativistic scattering theory; 34.80.Dp; 12.20.Ds
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MDPI and ACS Style

Chahboune, A.; Manaut, B.; Hrour, E.; Taj, S. Relativistic Ionization of Hydrogen Atoms by Positron Impact. Atoms 2016, 4, 10.

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