Bothmann, Enrico and Krauss, Frank and Schönherr, Marek (2018) 'Single top-quark production with sherpa.', European physical journal C., 78 (3). p. 220.
We present results at next-to-leading order accuracy in QCD for single top-quark production in the t, s and tW channels at the lhc at a centre-of-mass energy of 8TeV, obtained with the sherpa event generator. We find them in very good agreement with measured values and quantify their theory uncertainties. Uncertainties stemming from the choice between the four- and the five-flavour scheme are found to be typically of the order of 5–10% over large ranges of phase space. We discuss the impact of parton distribution functions, and in particular of the bottom PDF. We also show how different cuts on QCD radiation patterns improve the signal-to-background ratio in realistic fiducial volumes.
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|Publisher Web site:||https://doi.org/10.1140/epjc/s10052-018-5696-1|
|Publisher statement:||© The Author(s) 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3|
|Date accepted:||03 March 2018|
|Date deposited:||09 April 2018|
|Date of first online publication:||15 March 2018|
|Date first made open access:||09 April 2018|
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