Self-intersecting Regge trajectories in multi-channel scattering

Abstract

We present a simple direct method for calculating Regge trajectories for a multichannel scattering problem. The approach is applied to the case of two coupled Thomas-Fermi type potentials, used as a crude model for electron-atom scattering below the second excitation threshold. It is shown that non-adiabatic interaction may cause formation of loops in Regge trajectories. The accuracy of the method is tested by evaluating resonance contributions to elastic and inelastic integral cross sections.

5 pages, 4 figures

References in corpus (2)

• Kinetics and Dynamics of the S(^1D_2) + H_2 \to SH + H Reaction at Very Low Temperatures and Collision Energies
• Classification of resonance Regge trajectories and a modified Mulholland formula

Cited by in corpus (3)

• Complex angular momentum theory of state-to state integral cross sections: resonance effects in the F+HD->HF(v'=3)+D reaction
• Numerical Regge pole analysis of resonance structures in elastic, inelastic and reactive state-to-state integral cross sections
• Numerical Regge pole analysis of resonance structures in state-to-state reactive differential cross sections