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Measurement of the cross section for inclusive isolated-photon production in $pp$ collisions at $\sqrt s=$ 13 TeV using the ATLAS detector

Preprint published in 2017 by Morad Aaboud, Georges Aad, Henso Abreu, Olivier Arnaez, Hannah Arnold, Ricardo Abreu, Miguel Arratia, Ozan Arslan, Andrei Artamonov, Giacomo Artoni, Sebastian Artz, Shoji Asai, Nedaa Asbah, Adi Ashkenazi, Lily Asquith and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Preprint: policy unknown
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Postprint: policy unknown
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Abstract

Inclusive isolated-photon production in $pp$ collisions at a centre-of-mass energy of 13 TeV is studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 3.2 fb$^{-1}$. The cross section is measured as a function of the photon transverse energy above 125 GeV in different regions of photon pseudorapidity. Next-to-leading-order perturbative QCD and Monte Carlo event-generator predictions are compared to the cross-section measurements and provide an adequate description of the data.