An embedding technique to determine ττ backgrounds in proton-proton collision data; Journal of Instrumentation; Vol. 14, iss. 6

Библиографические подробности
Источник:Journal of Instrumentation
Vol. 14, iss. 6.— 2019.— [P06032, 54 p.]
Автор-организация: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Другие авторы: 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
Примечания: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.
Язык:английский
Опубликовано: 2019
Предметы:
Online-ссылка:https://doi.org/10.1088/1748-0221/14/06/P06032
Формат: Электронный ресурс Статья
Запись в KOHA:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662447

MARC

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330 |a 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. 
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