On the low-x NLO evolution of 4 point colorless operators

TL;DR

This paper derives next-to-leading order (NLO) evolution equations for four-point colorless operators like the quadrupole and double dipole, using high energy operator expansion, and constructs their quasi-conformal forms.

Contribution

It provides the first derivation of NLO evolution equations for these operators and develops their quasi-conformal formulations.

Findings

Derived NLO evolution equations for quadrupole and double dipole operators.

Constructed quasi-conformal evolution equations for composite operators.

Advances understanding of high energy QCD operator evolution.

Abstract

The NLO evolution equations for quadrupole and double dipole operators have been obtained within the high energy operator expansion method. The corresponding quasi-conformal evolution equations for the composite operators were constructed.