Abstract
This contribution gives an overview of the recent measurements of the differential cross sections for final states involving photons and/or jets at the centre-of-mass energies of 8 and 13 TeV, published by the ATLAS Collaboration. The results are compared with several next-to-leading order calculations and with the latest predictions of various Monte Carlo generators. New measurements of transverse energy-energy correlations and their associated asymmetries in multi-jet events at 8 TeV are also presented. Both measurements are used to extract the strong coupling constant and test the renormalization group equation.
Highlights
The study of the production of jets and photons at the Large Hadron Collider (LHC) provides a powerful tool for understanding perturbative QCD
This paper presents the recent published measurements of the cross section of final states involving photons and/or jets at center-of-mass energies of 8 and 13 TeV with the data collected by ATLAS detector [2]
We present a measurement of the transverse energy-energy correlations (TEEC) and their associate asymmetries (ATEEC) in multi-jet events at 8 TeV and a method to extract αs from them
Summary
The study of the production of jets and photons at the Large Hadron Collider (LHC) provides a powerful tool for understanding perturbative QCD (pQCD). The production of prompt photons in protonproton collisions, provides a testing ground for pQCD in a cleaner enviroment than in jet production, since the colorless photon originates directly from the hard interaction. The jet production measurements are used to contrain the gluon density in the proton and can be exploited to extract the strong coupling constant (αs) in specific final state topologies. This paper presents the recent published measurements of the cross section of final states involving photons and/or jets at center-of-mass energies of 8 and 13 TeV with the data collected by ATLAS detector [2]. We present a measurement of the transverse energy-energy correlations (TEEC) and their associate asymmetries (ATEEC) in multi-jet events at 8 TeV and a method to extract αs from them
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