Effects of strong electric fields on resonant structures in H/sup -/ photodetachment

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.27.2889· OSTI ID:5960396

Bryant, H C; Clark, D A; Butterfield, K B

Relativistic kinematics with an 800-MeV H/sup -/ beam at the Clinton P. Anderson Meson Physics Facility (LAMPF) at Los Alamos allows the observation, with very little background, of resonant structures in the photodetachment spectrum of H/sup -/ in intense electric fields. We report studies of the /sup 1/P resonances near n = 2 in H/sup -/ in electric fields as high as 1.3 MV/cm. The splitting of the /sup 1/P Feshbach resonance can be explained by Stark mixing with a nearly degenerate /sup 1/S resonance. For field values above those required to quench the Feshbach resonances a /sup 1/D state is observed, apparently induced by Stark mixing with the /sup 1/P shape resonance. The systematics of the behavior of these resonances are compared with the results of a simple perturbation model.

• Research Organization: The University of New Mexico, Albuquerque, New Mexico 87131
• OSTI ID: 5960396
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 27:6; 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
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ENERGY LEVELS
ENERGY RANGE
FINE STRUCTURE
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION COLLISIONS
IONS
LASER RADIATION
MEV RANGE
MEV RANGE 100-1000
P STATES
PERTURBATION THEORY
PHOTON COLLISIONS
PHOTON-ION COLLISIONS
RADIATIONS
STARK EFFECT