Evidence for very narrow shape resonances in low-energy electron-Cs scattering

Journal Article · Mon Dec 16 04:00:00 EST 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.3495· OSTI ID:6048500

Thumm, U; Norcross, D W ^[1]

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1. Joint Institute for Laboratory Astrophysics, University of Colorado National Institute of Standards and Technology, Boulder, Colorado 80309-0440 (United States)

A relativistic scattering calculation based on the Dirac {ital R}-matrix method has been performed within a two-electron model-potential approach for negative-ion binding energies as well as elastic and inelastic scattering cross sections. We find multiplets of narrow shape resonances with {ital J}=0, 1, and 2, and widths of a few meV. Their {ital J}-averaged energies for even and odd parity are 119.0 meV below the 6{ital p}{sub 1/2} threshold and 9.1 meV above the 6{ital s}{sub 1/2} threshold.

• OSTI ID: 6048500
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:25; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ANIONS
ATOM COLLISIONS
BINDING ENERGY
CESIUM
CESIUM IONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
ENERGY DEPENDENCE
ENERGY LEVELS
ENERGY RANGE
FERMIONS
GROUND STATES
INELASTIC SCATTERING
INFORMATION
IONS
LEPTONS
MANY-BODY PROBLEM
MATRICES
METALS
MULTIPLETS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
POTENTIALS
R MATRIX
RELATIVISTIC RANGE
RESONANCE
SCATTERING
THEORETICAL DATA
THRESHOLD ENERGY
TWO-BODY PROBLEM