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

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

Bibliografiske detaljer
Parent link:	Journal of Instrumentation Vol. 14, iss. 6.— 2019.— [P06032, 54 p.]
Institution som forfatter:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Andre forfattere:	Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Asilar E. Ece, Bergauer T. Thomas, Babaev A. A. Anton Anatoljevich, Okhotnikov V. V. Vitaly Vladimirovich
Summary:	Title screen An embedding technique is presented to estimate standard model 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 vs = 13 TeV corresponding to an integrated luminosity of 41.5 fb1.
Sprog:	engelsk
Udgivet:	2019
Fag:	электронный ресурс труды учёных ТПУ pattern recognition cluster finding calibration and fitting methods performance of High Energy Physics Detectors распознавание образов кластеры калибровка подгонка детекторы
Online adgang:	https://doi.org/10.1088/1748-0221/14/06/P06032
Format:	Electronisk Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662447

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