Determination of the strong coupling and its running from measurements of inclusive jet production
Journal
Physics Letters B
Journal Volume
868
Start Page
139651
ISSN
0370-2693
Date Issued
2025-09
Author(s)
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.
Subjects
CMS
Inclusive jet production
QCD analysis
Strong coupling
Publisher
Elsevier BV
Type
journal article