Measurement of differential cross sections for inclusive isolated-photon and photon plus jet production in proton-proton collisions at root s=13TeV

Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Asilar, E. and Bartók, Márton and Csanád, Máté and Filipovic, Nicolas and Major, Péter and Nagy, Márton and Pásztor, Gabriella and Surányi, Olivér and Veres, Gábor and Bencze, György and Hajdú, Csaba and Horváth, Dezső and Siklér, Ferenc and Veszprémi, Viktor and Vesztergombi, György and Béni, Noémi Tekla and Czellár, Sándor and Karancsi, János and Makovec, Alajos and Molnár, József and Szillási, Zoltán and Raics, Péter and Ujvári, Balázs (2019) Measurement of differential cross sections for inclusive isolated-photon and photon plus jet production in proton-proton collisions at root s=13TeV. EUROPEAN PHYSICAL JOURNAL C, 79 (1). ISSN 1434-6044

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Abstract

Measurements of inclusive isolated-photon and photon+jets production in proton-proton collisions at $\sqrt{s} =$ 13 TeV are presented. The analysis uses data collected by the CMS experiment in 2015, corresponding to an integrated luminosity of 2.26 fb$^{-1}$. The cross section for inclusive isolated-photon production is measured as a function of the photon transverse energy, for $E_\mathrm{T}>$ 190 GeV, and rapidity, for $|y|<$ 2.5. The cross section for photon+jets production is measured as a function of the photon transverse energy, for $E_\mathrm{T}>$ 190 GeV, the photon rapidity, for $|y|<$ 2.5, and the rapidity of the jet with highest transverse momentum, up to $|y|<$ 2.4. The experimental measurements are found to be in agreement with predictions from perturbative QCD.

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