Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/8081
Title: Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
Authors: Aaboud, M.
Aad, G.
Abbott, B.
Abdinov, O.
Abeloos, B.
Abhayasinghe, D. K.
Sultansoy, Saleh
The ATLAS Collaboration
Keywords: Parton Distributions
Pair Production
Plus Plus
Issue Date: 2021
Publisher: Springer
Abstract: A search is presented for new phenomena in events characterised by high jet multiplicity, no leptons (electrons or muons), and four or more jets originating from the fragmentation of b-quarks (b-jets). The search uses 139fb(-1)of s root = 13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider during Run 2. The dominant Standard Model background originates from multijet production and is estimated using a data-driven technique based on an extrapolation from events with low b-jet multiplicity to the high b-jet multiplicities used in the search. No significant excess over the Standard Model expectation is observed and 95% confidence-level limits that constrain simplified models of R-parity-violating supersymmetry are determined. The exclusion limits reach 950 GeV in top-squark mass in the models considered.
URI: https://doi.org/10.1140/epjc/s10052-020-08730-0
https://hdl.handle.net/20.500.11851/8081
ISSN: 1434-6044
1434-6052
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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