Inclusive jet cross section and strong coupling constant measurements at CMS
- Adiyaman University, Faculty of Arts and Sciences, Department of Physics, 02040 Adiyaman (Turkey)
The probes which are abundantly produced in high energetic proton-proton (pp) collisions at the LHC are called jets. Events with jets can be described by Quantum Chromodynamics (QCD) in terms of parton-parton scattering. The inclusive jet cross section in pp collision is the fundamental quantity which can be measured and predicted within the framework of perturbative QCD (pQCD). The strong coupling constant α{sub S} which can be determined empirically in the limit of massless quarks, is the single parameter in QCD. The jet measurements can also be used to determine strong coupling constant α{sub S} and parton density functions (PDFs). The recent jet measurements which are performed with the data collected by the CMS detector at different center-of-mass energies and down to very low transverse momentum p{sub T} are presented. The measurements are compared to Monte Carlo predictions and perturbative calculations up to next-to-next-to leading order. Finally, the precision jet measurements give further insight into the QCD dynamics.
- OSTI ID:
- 22590960
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1722; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
ACCURACY
CENTER-OF-MASS SYSTEM
CERN LHC
CMS DETECTOR
COMPARATIVE EVALUATIONS
COUPLING
COUPLING CONSTANTS
CROSS SECTIONS
GLUON-GLUON INTERACTIONS
GLUONS
INCLUSIVE INTERACTIONS
JET MODEL
MONTE CARLO METHOD
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUARK-QUARK INTERACTIONS
QUARKS
TRANSVERSE MOMENTUM