Resonant electron capture to high Rydberg states of Ca II

Journal Article · Sat Sep 01 04:00:00 EDT 1984 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.30.1558· OSTI ID:6467607

Nasser, I; Hahn, Y

The dielectronic recombination cross section for the Ca II ion is calculated for the process in which the 4s electron is excited to the 4p state as the projectile electron is captured to a high Rydberg state (nl). The cross section, averaged over a bin size of 0.3 eV, exhibits a peak of 1.8 x 10/sup -17/ cm/sup 2/, while a cutoff for n< or =80 reduces this to 2.3 x 10/sup -18/ cm/sup 2/. The recent crossed-beam experiment gives a cross section of 1.8 x 10/sup -17/ cm/sup 2/ which is at least seven times larger than the theoretical value.

• Research Organization: Department of Physics, University of Connecticut, Storrs, Connecticut 06268
• OSTI ID: 6467607
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 30:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
BORN APPROXIMATION
CALCIUM IONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DWBA
ELECTRON CAPTURE
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ENERGY LEVELS
EXCITED STATES
HARTREE-FOCK METHOD
ION COLLISIONS
IONS
RECOMBINATION
RYDBERG STATES