Above barrier Dirac multiple scattering and resonances

Theoretical Physics

Abstract

We extend an above barrier analysis made with the Schrödinger equation to the Dirac equation. We demonstrate the perfect agreement between the barrier results and back to back steps. This implies the existence of multiple (indeed infinite) reflected and transmitted wave packets. These packets may be well separated in space or partially overlap. In the latter case interference effects can occur. For the extreme case of total overlap we encounter resonances. The conditions under which resonance phenomena can be observed is discussed and illustrated by numerical calculations.

Keywords

Field Theory Elementary Particle Numerical Calculation Quantum Field Theory Extreme Case 

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Department of Applied MathematicsState University of CampinasCampinasBrazil
  2. 2.Department of Physics, INFNUniversity of LecceLecceItaly

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