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Pile-up Background Estimation in Diboson Production by the Overlay Monte-Carlo Method in pp Collider Experiment
- Authors: Zharova V.1, Kazakova K.1, Soldatov E.1
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Affiliations:
- National Research Nuclear University MEPhI
- Issue: Vol 88, No 6 (2025)
- Pages: 475-480
- Section: ЭЛЕМЕНТАРНЫЕ ЧАСТИЦЫ И ПОЛЯ. Эксперимент
- URL: https://journals.rcsi.science/0044-0027/article/view/364903
- DOI: https://doi.org/10.7868/S3034628225060061
- ID: 364903
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Abstract
In case of diboson production in ppcollisions there is a non-negligible probability that some events passing the final selection in data are actually from different overlapping hard-scatter processes occurring within the same bunch-crossing. Such events, that consist of combination of two processes associated withdifferent primary vertices, correspond to so-called pile-upbackground. Its contribution should be considered in analysis of diboson production at collider experiments. This article discusses an overlay Monte-Carlo approach to obtain a theoretical prediction of the pile-upevent count. According to the resulting estimate of the proposed method the impact of the pile-upbackground can be either subtracted from the data in the region of interest or accounted as an additional systematic uncertainty for the final result.
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About the authors
V. Zharova
National Research Nuclear University MEPhI
Email: valeria.zharova@outlook.com
Moscow, Russia
K. Kazakova
National Research Nuclear University MEPhI
Email: valeria.zharova@outlook.com
Moscow, Russia
E. Soldatov
National Research Nuclear University MEPhI
Email: valeria.zharova@outlook.com
Moscow, Russia
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