High energy evolution of soft gluon cascades

Theoretical Physics

Abstract.

In this paper we derive an evolution equation for the gluon density in soft gluon cascades emitted from any colored source, in the leading logarithmic approximation of perturbative QCD. We show that this equation has the same form as the BFKL equation in the forward case. An explicit expression for the total cascade wavefunction involving an arbitrary number of soft gluons is obtained. Renormalization of the colored source wavefunction turns out to be responsible for the reggeization of the source.

Keywords

Field Theory Elementary Particle Quantum Field Theory Evolution Equation Explicit Expression 

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.St. Petersburg Nuclear Physics InstituteGatchinaRussia
  2. 2.Laboratoire de Physique ThéoriqueUniversité Paris XIOrsay CedexFrance

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