Pomeron vertices in perturbative QCD in diffractive scattering

theoretical physics

Abstract.

We analyze the momentum space triple pomeron vertex in perturbative QCD. In addition to the standard form of this vertex which is used in the context of total cross sections at high energies and in the QCD reggeon field theory, there exists an alternative form which has to be used in the study of high-mass diffraction. We review and analyze the relation between these two versions. We discuss some implications for the BK equation. In the second part of our paper we extend this analysis to the pomeron-odderon-odderon vertex.

Keywords

Field Theory Elementary Particle Quantum Field Theory Standard Form Total Cross Section 

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2005

Authors and Affiliations

  1. 1.Institut für Theoretische PhysikUniversity of HamburgHamburgGermany
  2. 2.Department of High Energy PhysicsUniversity of St. PetersburgSt. PetersburgRussia
  3. 3.Dipartimento di Fisica and INFNUniversity of BolognaBolognaItaly

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