Experimental Verification of Two types of Gluon Jets in QCD

TL;DR

This paper proposes an experimental test to verify the existence of two types of gluon jets in QCD, predicting distinct properties for neuron and chromon jets and suggesting analysis methods to identify them.

Contribution

It introduces a novel experimental approach to confirm the Abelian decomposition of QCD by distinguishing two gluon jet types based on their properties.

Findings

Prediction of two gluon jet types with distinct color factors and jet characteristics

Proposal to analyze existing data for two peaks in jet shape and multiplicity distributions

Identification of unique color flow patterns for neuron and chromon jets

Abstract

The Abelian decomposition of QCD tells that there are two types of gluons, the color neutral neurons and colored chromons. We propose to confirm the Abelian decomposition testing the existence of two types of gluon jets experimentally. We predict that one quarter of the gluon jet is made of the neurons which has the color factor 3/4 and the sharpest jet radius and smallest charged particle multiplicity, while the three quarters of the gluon jet are made of the chromons with the color factor 9/4 which have the broadest jet radious (broader than the quark jet). Moreover, we argue that the neuron jet has a distinct color flow which forms an ideal color dipole, while the quark and chromon jets have distorted dipole pattern. To test the plausibility of this proposal we suggest to analyse the gluon distribution against the jet shape (the sphericity) and/or particle multiplicity from the existing gluon jet events and look for two distinct peaks in the distribution.