Pomeron evolution, entanglement entropy, and Abramovskii-Gribov-Kancheli cutting rules

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Abstract

We use Pomeron evolution equation in zero transverse dimension based on the Abramovskii-Gribov-Kancheli (AGK) cutting rules to calculate the von Neumann entropy and q moments that are used as an experimental test for the Koba-Nielsen-Olesen scaling. In order to avoid the negative probabilities that emerge from the negative AGK weights in the Minkowski space, we reformulate the Pomeron evolution in the Euclidean space. The resulting positive definite probabilities for cut and uncut Pomerons are used in calculating the q moments. The comparison to the experimental data shows that our AGK-based model successfully describes q-moment dependence on the mean multiplicity without any adjustable parameter in the experimental data of the p-p collisions by the ALICE Collaboration.

Original languageEnglish
Article number09402
JournalPhysical Review D
Volume112
Issue number9
DOIs
StatePublished - 17 Nov 2025

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