BFKL Evolution as a Communicator Between Small and Large Energy Scales

TL;DR

This paper investigates how BSM effects, particularly supersymmetry, influence BFKL evolution and the structure of pomeron states, suggesting potential for detecting new physics through low-x data analysis.

Contribution

It introduces a model showing BSM effects significantly modify BFKL eigenvalues, impacting gluon density and offering a method to detect supersymmetry at multi-TeV scales.

Findings

BSM effects alter BFKL eigenvalues substantially.

Infrared boundary conditions influence gluon structure functions.

Analysis of low-x data could reveal supersymmetry scale.

Abstract

We analyze, in leading and next to leading order of BFKL, a possible influence of Beyond the Standard Model (BSM) effects on the structure of the discrete pomeron states. We show that the eigenvalues of the states which contribute significantly to the gluon density in the observable region are substantially modified by BSM effects irrespective of the assumptions about the infrared boundary conditions. We also develop a physically motivated heuristic model of the infrared boundary condition which determines the gluon structure function and argue, using this model, that the analysis of the present and future low-$x$ data could allow the detection of a supersymmetry scale in the multi-TeV range.