Electron impact ionization of Rydberg atoms

Journal Article · Mon Aug 15 00:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.022722· OSTI ID:20718142

Vrinceanu, D ^[1]

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1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

The cross section for ionization of Rydberg atoms in collision with electrons at low and moderate energies is calculated using classical trajectories. The dependence of the total cross section on the initial angular momentum of the target is revealed. Low-discrepancy sequences of (quasirandom) numbers are compared with plain random numbers to confirm that they can lead to improved convergence of calculation in certain cases. A phenomenological parametrization using only two parameters is shown to describe well the classical cross section over a wide range of energies and angular momenta. Using the classical scaling law, the results are extended to any principal quantum number.

• OSTI ID: 20718142
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
ATOMS
CONVERGENCE
ELECTRON-ATOM COLLISIONS
ELECTRONS
IONIZATION
RANDOMNESS
RYDBERG STATES
SCALING LAWS