Compound states of Reggeized gluons in multi-colour QCD

by Gregory KORCHEMSKY (Orsay)

Thursday 20 Jun 2002, 14:00 → 15:00 Europe/Zurich

TH Auditorium (CERN)

High-energy asymptotics of scattering amplitudes in QCD are described by the generalized BFKL evolution equations whose solutions define colour-singlet compound states of reggeized gluons. The states built from N = 2 and N = 3 reggeized gluons are known as the BFKL Pomeron and the Odderon, respectively. We study the properties of higher (N ge 4) compound states of reggeized gluons in multi-colour QCD using their relation with noncompact two-dimensional Heisenberg spin magnets. Applying the methods of integrable models, we calculate their spectrum and discuss the application of the obtained results to high-energy asymptotics of the scattering amplitudes in perturbative QCD.