Differential and integrated cross sections for excitation to the 3s, 3p, and 3d states of atomic hydrogen by electron impact below the n=4 threshold

Journal Article · Tue Aug 15 04:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.022714· OSTI ID:20853075

Bartlett, Philip L; Bray, Igor; Stelbovics, Andris T ^[1]; Williams, J F ^[2]; Mikosza, A G ^[3]

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1. ARC Centre for Antimatter-Matter Studies, Murdoch University, Perth 6150 (Australia)
2. ARC Centre for Antimatter-Matter Studies, University of Western Australia, Perth 6009 (Australia)
3. Centre for Atomic, Molecular and Surface Physics, University of Western Australia, Perth 6009 (Australia)

Integrated cross sections for the electron-impact excitation of ground-state hydrogen to the 3s, 3p, and 3d final states have been calculated using propagating exterior complex scaling and convergent close-coupling methods at energies between the n=3 and 4 excitation thresholds. The calculations are in excellent agreement and demonstrate that exterior complex scaling methods can accurately reproduce the resonance structure and magnitude of the excitation cross sections below the ionization threshold. Measurements of the separate 3s, 3p, and 3d differential cross sections were made at 12.24 eV, and are consistent with both calculations within a total experimental uncertainty of about 35%.

• OSTI ID: 20853075
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
COUPLING
D STATES
DIFFERENTIAL CROSS SECTIONS
ELECTRON-ATOM COLLISIONS
ELECTRONS
EV RANGE
EXCITATION
EXCITED STATES
GROUND STATES
HYDROGEN
IONIZATION
RESONANCE
S STATES