Threshold and jet radius joint resummation for single-inclusive jet production

TL;DR

This paper introduces a novel joint resummation framework for single-inclusive jet production at the LHC, improving theoretical precision and data agreement by combining threshold and jet radius effects at next-to-leading logarithmic accuracy.

Contribution

It presents the first combined threshold and jet radius resummation for single-inclusive jet production, extending precision beyond previous methods using Soft Collinear Effective Theory.

Findings

Enhanced agreement with LHC data

Systematic extension beyond current precision

First numerical results for joint resummation

Abstract

We present the first threshold and jet radius jointly resummed cross section for single-inclusive hadronic jet production. We work at next-to-leading logarithmic accuracy and our framework allows for a systematic extension beyond the currently achieved precision. Longstanding numerical issues are overcome by performing the resummation directly in momentum space within Soft Collinear Effective Theory. We present the first numerical results for the LHC and observe an improved description of the available data. Our results are of immediate relevance for LHC precision phenomenology including the extraction of parton distribution functions and the QCD strong coupling constant.