An embedding technique to determine ττ backgrounds in proton-proton collision data
Authors
Sirunyan, A MTumasyan, A
Adam, W
Ambrogi, F
Asilar, E
Adžić, Petar
Ćirković, Predrag

Devetak, Damir

Đorđević, Miloš

Milenović, Predrag
Milošević, Jovan

Contributors
CMS CollaborationCMS Collaboration (ukupan broj autora: 2293)
Article (Published version)
Metadata
Show full item recordAbstract
An embedding technique is presented to estimate standard model it backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed nn 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 o 41.5 fb-1. © 2019 CERN for the benefit of the CMS collaboration. Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms o...f the Creative Commons Attribution 3.0 licence.
Keywords:
Embedding technique / Fitting method / High energy / Embeddings / Elementary particles / Pattern recognition / TelluriSource:
Journal of Instrumentation, 2019, 14, 6
DOI: 10.1088/1748-0221/14/06/P06032
ISSN: 1748-0221