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An embedding technique to determine ττ backgrounds in proton-proton collision data

An embedding technique to determine ττ backgrounds in proton-proton collision data
An embedding technique to determine ττ backgrounds in proton-proton collision data
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.
1748-0221
1-54
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Tumasyan, A.
6e9fc82d-9104-48e4-8a4d-60f52fdb9ee5
Adam, W.
cf28e097-e876-491a-b325-652e123da3c0
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
et al.
The CMS Collaboration
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Tumasyan, A.
6e9fc82d-9104-48e4-8a4d-60f52fdb9ee5
Adam, W.
cf28e097-e876-491a-b325-652e123da3c0
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Sirunyan, A.M., Tumasyan, A. and Adam, W. , et al. and The CMS Collaboration (2019) An embedding technique to determine ττ backgrounds in proton-proton collision data. Journal of Instrumentation, 1-54. (doi:10.1088/1748-0221/14/06/P06032).

Record type: Article

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.

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Sirunyan 2019 J. Inst. 14 P06032 - Version of Record
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Accepted/In Press date: 27 May 2019
Published date: 21 June 2019

Identifiers

Local EPrints ID: 433202
URI: http://eprints.soton.ac.uk/id/eprint/433202
ISSN: 1748-0221
PURE UUID: 2bfc4ffa-f3ff-4370-b301-5af3188254cd
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 12 Aug 2019 16:30
Last modified: 26 Nov 2021 02:52

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Contributors

Author: A.M. Sirunyan
Author: A. Tumasyan
Author: W. Adam
Corporate Author: et al.
Corporate Author: The CMS Collaboration

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