Photodetachment of H/sup -/ in an electric field

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.38.5609· OSTI ID:6609682

Du, M L; Delos, J B

A simple analytic formula for the photodetachment cross section of H/sup -/ in an electric field is derived. The formula becomes identical to a formula derived many years ago in the vanishing-field limit. Three special features appear in the cross section in the presence of an electric field: a quantum tunneling effect, a new threshold law, and oscillations. These appear when the photon energy is, respectively, less than, equal to, or greater than the binding energy of H/sup -/. Enough information is provided in this paper so that one can calculate the cross section quickly.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138
• OSTI ID: 6609682
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 38:11; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ANIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON DETACHMENT
ENERGY
ENERGY DEPENDENCE
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION COLLISIONS
IONS
OSCILLATIONS
PHOTON COLLISIONS
PHOTON-ION COLLISIONS
THRESHOLD ENERGY
TUNNEL EFFECT