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Title

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

AuthorsSirunyan, A. M.; Cabrillo, I. J. ; Calderon, Alicia ; Chazin Quero, B.; Duarte Campderros, J. ; Fernández, M. ; Fernández-Manteca, Pedro; García Alonso, A.; García-Ferrero, J. ; Gómez, G. ; López Virto, A. ; Marco, Jesús ; Martínez-Rivero, Celso ; Martínez Ruiz del Arbol, P. ; Matorras, Francisco ; Piedra, Jonatan ; Prieels, C.; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Trevisani, N. ; Vila, Iván ; Vilar, Rocío
KeywordsPattern recognition
Cluster finding
Calibration and fitting methods
Performance of High Energy Physics Detectors
Issue Date2019
PublisherIOP Publishing
CitationJournal of Instrumentation 14: P06032 (2019)
AbstractAn 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.
DescriptionCERN for the benefit of the CMS collaboration.
Publisher version (URL)https://doi.org/10.1088/1748-0221/14/06/P06032
URIhttp://hdl.handle.net/10261/212976
DOI10.1088/1748-0221/14/06/P06032
Identifiersdoi: 10.1088/1748-0221/14/06/P06032
e-issn: 1748-0221
Appears in Collections:(IFCA) Artículos
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