The high-energy limit of perturbative QCD: Theory and phenomenology

TL;DR

This paper discusses the high-energy behavior of perturbative QCD, emphasizing the role of Higgs and heavy-flavored hadron emissions as stabilizers, and advocates for a hybrid factorization approach combining BFKL resummation with collinear factorization for precise high-energy QCD analysis.

Contribution

It introduces a hybrid high-energy and collinear factorization framework using next-to-leading BFKL resummation combined with parton distributions and fragmentation functions.

Findings

Higgs and heavy-flavored hadron emissions stabilize high-energy distributions.

Hybrid factorization is effective for high-energy QCD analysis.

Next-to-leading BFKL resummation enhances precision in predictions.

Abstract

After a brief introduction of formal and phenomenological progresses in the study of the high-energy limit of perturbative QCD, we present arguments supporting the statement that the inclusive emission of Higgs bosons or heavy-flavored hadrons acts as fair stabilizer of high-energy resummed differential distributions. We come out with the message that the hybrid high-energy and collinear factorization, built in term of the next-to-leading logarithmic resummation \emph{\`a la} BFKL and supplemented by collinear parton distributions and fragmentation functions, is a valid and powerful tool to gauge the feasibility of precision analyses of QCD in its high-energy limit.