Please use this identifier to cite or link to this item:
|Title:||Search for top squark production in fully hadronic final states in proton-proton collisions at root s=13 TeV||Authors:||Sirunyan, A. M.
Andrejkovic, J. W.
Gürpınar Güler, Emine
The CMS Collaboration
|Issue Date:||2021||Publisher:||AMER PHYSICAL SOC||Abstract:||A search for production of the supersymmetric partners of the top quark, top squarks, is presented. The search is based on proton-proton collision events containing multiple jets, no leptons, and large transverse momentum imbalance. The data were collected with the CMS detector at the CERN LHC at a center-of-mass energy of 13 TeV, and correspond to an integrated luminosity of 137 fb(-1). The targeted signal production scenarios are direct and gluino-mediated top squark production, including scenarios in which the top squark and neutralino masses are nearly degenerate. The search utilizes novel algorithms based on deep neural networks that identify hadronically decaying top quarks and W bosons, which are expected in many of the targeted signal models. No statistically significant excess of events is observed relative to the expectation from the standard model, and limits on the top squark production cross section are obtained in the context of simplified supersymmetric models for various production and decay modes. Exclusion limits as high as 1310 GeVare established at the 95% confidence level on the mass of the top squark for direct top squark production models, and as high as 2260 GeV on the mass of the gluino for gluino-mediated top squark production models. These results represent a significant improvement over the results of previous searches for supersymmetry by CMS in the same final state.||URI:||https://doi.org/10.1103/PhysRevD.104.052001
|Appears in Collections:||Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu|
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections
Show full item record
Files in This Item:
|PhysRevD.104.052001.pdf||2.34 MB||Adobe PDF||View/Open|
checked on May 27, 2023
WEB OF SCIENCETM
checked on Jan 30, 2023
checked on May 29, 2023
checked on May 29, 2023
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.