Nonperturbative B-spline R-matrix-with-pseudostates calculations for electron-impact ionization-excitation of helium to the n=3 states of He+
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Author(s)
Zatsarinny, Oleg
Bartschat, Klaus
Griffith University Author(s)
Year published
2016
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We present fully differential cross-section ratios for electron-impact ionization of helium without excitation and with simultaneous excitation of the residual ion. The results are obtained from a nonperturbative close-coupling formalism, with the resulting equations being solved by a B-spline R-matrix-with-pseudostates approach. Very encouraging agreement is obtained with directly measured cross-section ratios for ionization leaving the residual He+ ion in either the 1s ground state or the n=3(3s+3p+3d) excited states.We present fully differential cross-section ratios for electron-impact ionization of helium without excitation and with simultaneous excitation of the residual ion. The results are obtained from a nonperturbative close-coupling formalism, with the resulting equations being solved by a B-spline R-matrix-with-pseudostates approach. Very encouraging agreement is obtained with directly measured cross-section ratios for ionization leaving the residual He+ ion in either the 1s ground state or the n=3(3s+3p+3d) excited states.
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Journal Title
Physical Review A
Volume
93
Issue
1
Copyright Statement
© 2016 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Subject
Atomic and molecular physics
Science & Technology
Physical Sciences
Optics
Physics, Atomic, Molecular & Chemical
Physics