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A path integral approach to inclusive processes

  • O. Nachtmann
  • A. Rauscher
Theoretical physics

Abstract.

The single-particle inclusive differential cross-section for a reaction \(a+b\to c+X\) is written as the imaginary part of a correlation function in a forward scattering amplitude for \(a+b\to a+b\) in a modified effective theory. In this modified theory the interaction Hamiltonian \(\tilde H_I\) equals \(H_I\) in the original theory up to a certain time. Then there is a sign change and \(\tilde H_I\) becomes nonlocal. This is worked out in detail for scalar field models and for QED plus the abelian gluon model. A suitable path integral for direct calculations of inclusive cross sections is presented.

Keywords

Correlation Function Imaginary Part Scalar Field Direct Calculation Integral Approach 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • O. Nachtmann
    • 1
  • A. Rauscher
    • 1
  1. 1.Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, GermanyDE

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