Sirunyan, AM;
Tumasyan, A;
Adam, W;
Ambrogi, F;
Asilar, E;
Bergauer, T;
Brandstetter, J;
... Smith, WH; + view all
(2019)
An embedding technique to determine ττ backgrounds in proton-proton collision data.
Journal of Instrumentation
, 14
, Article P06032. 10.1088/1748-0221/14/06/P06032.
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Abstract
An embedding technique is presented to estimate standard model ττ backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed μμ events and replaced with simulated tau leptons with the same kinematic properties. In this way, a set of hybrid events is obtained that does not rely on simulation except for the decay of the tau leptons. The challenges in describing the underlying event or the production of associated jets in the simulation are avoided. The technique described in this paper was developed for CMS . Its validation and the inherent uncertainties are also discussed. The demonstration of the performance of the technique is based on a sample of proton-proton collisions collected by CMS in 2017 at √s=13 TeV corresponding to an integrated luminosity of 41.5 fb−1
| Type: | Article |
|---|---|
| Title: | An embedding technique to determine ττ backgrounds in proton-proton collision data |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1748-0221/14/06/P06032 |
| Publisher version: | https://doi.org/10.1088/1748-0221/14/06/P06032 |
| Language: | English |
| Additional information: | Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. http://creativecommons.org/licenses/by/3.0/ |
| Keywords: | Pattern recognition, cluster finding, calibration and fitting methods; Performance of High Energy Physics Detectors |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10089083 |
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