The strong coupling constant and its running from inclusive jet production at CMS

CMS Physics Analysis Summaries
Report number	CMS-PAS-SMP-24-007
Title	The strong coupling constant and its running from inclusive jet production at CMS
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	A comprehensive analysis at next-to-next-to-leading order (NNLO) accuracy in quantum chromodynamics (QCD) is presented. It uses double-differential cross section measurements of inclusive jet production from the CMS Collaboration at centre-of-mass energies of 2.76, 7, 8, and 13 TeV. The result is a simultaneous determination of the value of the strong coupling constant at the mass of the Z boson $\alpha_{\mathrm{s}}(M_{\mathrm{Z}})$ together with the parton distribution functions of the proton. The value $\alpha_{\mathrm{s}}(M_{\mathrm{Z}}) = 0.1176^{+0.0014}_{-0.0016}$ is obtained. By using the measurements in different intervals of jet transverse momenta, the running of the strong coupling is probed for energy scales between 100 and 1600 GeV.
Other source	Inspire
Related	superseded by: CERN-EP-2024-327
Email contact: [email protected] Fulltext in PDF Figure_006 Figure_005 Figure_004 Figure_003 Figure_002 Figure_001 Additional information for the analysis (restricted access)