Determination of the strong coupling and its running from measurements of inclusive jet production

The CMS collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

The value of the strong coupling αS is determined in a comprehensive analysis at next-to-next-to-leading order accuracy in quantum chromodynamics. The analysis uses double-differential cross section measurements from the CMS Collaboration at the CERN LHC of inclusive jet production in proton-proton collisions at centre-of-mass energies of 2.76, 7, 8, and 13 TeV, combined with inclusive deep-inelastic data from HERA. The value αS(mZ)=0.1176−0.0016+0.0014 is obtained at the scale of the Z boson mass. By using the measurements in different intervals of jet transverse momentum, the running of αS is probed for energies between 100 and 1600 GeV.

Original languageEnglish (US)
Article number139651
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume868
DOIs
StatePublished - Sep 2025

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • CMS
  • Inclusive jet production
  • QCD analysis
  • Strong coupling

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