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Measurement of the inclusive isolated prompt photon cross section in pp collisions at s√=8 TeV with the ATLAS detector
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Beckingham, M., Ennis, Joseph Stanford, Farrington, Sinead, Harrison, P. F., Jeske, C., Jones, G. (Graham), Martin, T. A., Murray, W., Pianori, E. and Spangenberg, Martin (2016) Measurement of the inclusive isolated prompt photon cross section in pp collisions at s√=8 TeV with the ATLAS detector. Journal of High Energy Physics, 2016 (8). 5. doi:10.1007/jhep08(2016)005 ISSN 1029-8479.
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Official URL: https://doi.org/10.1007/jhep08(2016)005
Abstract
A measurement of the cross section for the inclusive production of isolated prompt photons in proton-proton collisions at a centre-of-mass energy of s=8\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s}=8 $$\end{document} TeV is presented. The measurement covers the pseudorapidity ranges |ηγ | < 1.37 and 1.56 ≤ |ηγ | < 2.37 in the transverse energy range 25 < ETγ < 1500 GeV. The results are based on an integrated luminosity of 20.2 fb−1, recorded by the ATLAS detector at the LHC. Photon candidates are identified by combining information from the calorimeters and the inner tracker. The background is subtracted using a data-driven technique, based on the observed calorimeter shower-shape variables and the deposition of hadronic energy in a narrow cone around the photon candidate. The measured cross sections are compared with leading-order and next-to-leading order perturbative QCD calculations and are found to be in a good agreement over ten orders of magnitude.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Journal or Publication Title: | Journal of High Energy Physics | ||||||
| Publisher: | Springer Berlin Heidelberg | ||||||
| ISSN: | 1029-8479 | ||||||
| Official Date: | 1 August 2016 | ||||||
| Dates: |
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| Volume: | 2016 | ||||||
| Number: | 8 | ||||||
| Article Number: | 5 | ||||||
| DOI: | 10.1007/jhep08(2016)005 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access (Creative Commons) |
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