Scattering of electrons by hydrogen atoms at intermediate energies: Elastic differential cross sections from 10 to 30 eV

Journal Article · Mon Dec 01 04:00:00 EST 1975 · Phys. Rev., A, v. 12, no. 6, pp. 2312-2318

DOI:https://doi.org/10.1103/PhysRevA.12.2312· OSTI ID:4090491

Callaway, J; Williams, J F

The elastic scattering amplitude obtained from an open pseudostate calculation employing the algebraic variational method for partial waves of angular momentum 0 < L < 3, is combined with phase shifts obtained in the extended polarization approximation for 4 < L < 99 to obtain elastic differential cross sections for electron-hydrogen scattering for electron energies in the range 10--30 eV. Elastic angular distributions have been measured using a crossed-electron modulated-atom-beam method and absolute cross-section values determined using a phase-shift analysis method. The measurements include energies from 10 to 30 eV and angles from 10 degree to 140 degree with estimated experimental error limits of +-17%. Within these error limits they are in agreement with the theoretical predictions except at 20 to 26 eV for angles greater than or equal to 120 degree , where the theoretical values are significantly higher than allowed by these error limits. (AIP)

• Research Organization: Department of Mathematics, Imperial College, London SW 7 2RH, England
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-015684
• OSTI ID: 4090491
• Journal Information: Phys. Rev., A, v. 12, no. 6, pp. 2312-2318, Journal Name: Phys. Rev., A, v. 12, no. 6, pp. 2312-2318; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

*HYDROGEN-- ELECTRON-ATOM COLLISIONS
640304* --Physics Research--Atomic
Molecular &amp; Chemical Physics--Collision Phenomena
ANGULAR DISTRIBUTION
DIFFERENTIAL CROSS SECTIONS
EV RANGE 10-100
N60400* --Physics (Atomic &amp; Molecular)--Collision Phenomena
VARIATIONAL METHODS