Differential cross sections for electron-impact excitation of hydrogenlike ions

Journal Article · Sat Jul 15 04:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.40.599· OSTI ID:5939348

Nakazaki, S; Itikawa, Y

A systematic study is made of differential cross sections for the electron-impact excitation of the 2/ital s/ and 2/ital p/ states of H-like ions. The cross section is calculated in the Coulomb-Born and the Coulomb-Born-Oppenheimer approximations. A comparison of the resulting cross sections is made along the isoelectronic sequence from /ital Z/=1 to /infinity/ (/ital Z/ being the nuclear charge) to reveal the role of the Coulomb force in the excitation processes. For the 1/ital s/-2/ital p/ transition, the behavior of the apparent generalized oscillator strength for the ions is found to be different from that for neutral hydrogen.

• Research Organization: Institute of Space and Astronautical Science, Yoshinodai, Sagamihara 229, Japan (JP)
• OSTI ID: 5939348
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 40:2; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BORN APPROXIMATION
COLLISIONS
COULOMB FIELD
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRIC FIELDS
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ENERGY-LEVEL TRANSITIONS
EXCITATION
ION COLLISIONS
ISOELECTRONIC ATOMS
OSCILLATOR STRENGTHS