Langevin equation in effective theory of interacting QCD pomerons in the limit of large $N_c$

Details Langevin equation in effective theory of interacting QCD pomerons in the limit of large $N_c$ Langevin equation in effective theory of interacting QCD pomerons in the limit of large $N_c$

2007-03-05

arxiv.org/abs/hep-ph/0703045v3

Nucl.Phys.A792:264-287,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 1 figure

Scientific paper

10.1016/j.nuclphysa.2007.05.010

Effective field theory of interacting BFKL pomerons is investigated and Langevin equations for the theory, which arise after the introduction of additional auxiliary field, are obtained. The Langevin equations are considered for the case of interacting BFKL pomerons with both splitting and merging vertexes and for the interaction which includes additional "toy" four pomeron interaction vertex. In the latest case an analogy with the Regge field theory in zero dimensions (RFT-0) was used in order to obtain this "toy" four pomeron interaction vertex. The comparison between the Langevin equations obtained in the frameworks of dipole and RFT approaches is performed, the interpretation of results is given and possible implementation of obtained equations is discussed.

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