Direct excitations of He+ and Li++ ions by collisions with protons or antiprotons

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Tantawi R.S.; Nassar T.E.I.

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Journal: Iranian Journal of Physics Research Year:2017 | Volume:17 | Issue:4 Page(s): 93-101

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Information Journal Paper

Title

Direct excitations of He+ and Li++ ions by collisions with protons or antiprotons

Author(s)

Tantawi R.S. | Nassar T.E.I. | Issue Writer Certificate

Keywords

scaled direct excitation cross sectionsQ1

single-center close-coupling expansionQ1

Born approximationQ1

He+(2s) and Li++(2s) ionsQ1

protons and antiprotonsQ1

Abstract

The impact parameter formalism of the single-center close-coupling, first-, and second-order Born approximations have been applied to investigate direct excitations of He+(2s) and Li++(2s) ions by colliding with protons or antiprotons. The total 3s, 3p, and 3d scaled excitation cross sections are calculated in the scaled impact energy region (2 to 1000 keV). The present work aims to explore the sensitivity of the cross sections to different electronic transition mechanisms of the considered approaches as well as the charge of each projectile and target nucleus. Also, the calculated cross sections are compared with those obtained by previous theoretical calculations.

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APA: Copy

Tantawi, R.S., & Nassar, T.E.I.. (2017). Direct excitations of He+ and Li++ ions by collisions with protons or antiprotons. IRANIAN JOURNAL OF PHYSICS RESEARCH, 17(4 ), 93-101. SID. https://sid.ir/paper/2033/en

Vancouver: Copy

Tantawi R.S., Nassar T.E.I.. Direct excitations of He+ and Li++ ions by collisions with protons or antiprotons. IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2017;17(4 ):93-101. Available from: https://sid.ir/paper/2033/en

IEEE: Copy

R.S. Tantawi, and T.E.I. Nassar, “Direct excitations of He+ and Li++ ions by collisions with protons or antiprotons,” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 17, no. 4 , pp. 93–101, 2017, [Online]. Available: https://sid.ir/paper/2033/en

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