Excitation of hydrogen atoms at intermediate and high energies by proton impact under a three-body Born–Faddeev-type formalism
In this work, differential cross sections have been calculated for the excitation of atomic hydrogen (H) from its ground state (1s) into a selection of its excited states (2s, 2p0, 2p+/-1 and 3s). The present study was conducted at intermediate and high proton impact energies within the range 50 keV...
Saved in:
Published in | Journal of physics. B, Atomic, molecular, and optical physics Vol. 42; no. 12; pp. 125203 - 125203 (9) |
---|---|
Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Bristol
IOP Publishing
28.06.2009
Institute of Physics |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | In this work, differential cross sections have been calculated for the excitation of atomic hydrogen (H) from its ground state (1s) into a selection of its excited states (2s, 2p0, 2p+/-1 and 3s). The present study was conducted at intermediate and high proton impact energies within the range 50 keV-1 MeV. A three-body model based on Faddeev-type equations is implemented, while near the energy shell the two-body Coulomb transition matrix was used to calculate the transition amplitude. Second and higher order approximations have been ignored in this case. The resulting amplitudes are subsequently utilized to calculate total and differential cross sections for the corresponding excitation processes. These calculated cross sections have then been compared with available experimental data and other theoretical results from the literature. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0953-4075 1361-6455 |
DOI: | 10.1088/0953-4075/42/12/125203 |