Abstract
Multiplicity moments within the framework of Reggeon field theory (RFT) are considered. RFT and the renormalization group are reviewed, along with Feynman rules for interacting Pomerons as well as rules for generating unitarity cuts. A variety of prescriptions for calculating multiplicity moments to second order are given as well as explicit expressions for multiplicity moments to first order. As has been noted elsewhere, the first-order moments are in good agreement with suitably corrected experimental results. The second-order corrections are found to be of the same order of magnitude as the first-order corrections, indicating a lack of convergence of the perturbation series. We speculate that the RFT perturbation series for multiplicity moments may in fact be an asymptotic series where higher-order corrections lead to worsening agreement.
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