PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Poster Session
Search for central exclusive production of top quark pairs with the CMS and TOTEM experiments
B. Ribeiro Lopes*  on behalf of the CMS and TOTEM collaborations
Full text: pdf
Pre-published on: October 25, 2022
Published on: June 15, 2023
Abstract
A search for central exclusive production of top quark pairs ($\mathrm{t}\bar{\mathrm{t}}$) is presented using collision data collected by CMS and the CMS-TOTEM Precision Proton Spectrometer in 2017. A data-driven method to estimate the background from coincidences of inclusive events and pileup protons is described, as well as the development of a Boosted Decision Tree classifier to separate the exclusive $\mathrm{t}\bar{\mathrm{t}}$ signal from the inclusive $\mathrm{t}\bar{\mathrm{t}}$ background. The first-ever upper limits on the cross section of exclusive $\mathrm{t}\bar{\mathrm{t}}$ are shown.
DOI: https://doi.org/10.22323/1.414.0961
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