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Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2021
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
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 = 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.
DOI
10.1140/epjc/s10052-020-08730-0
WOS
WOS:000610446600001
Archivio
http://hdl.handle.net/11390/1197373
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85099078791
Diritti
open access
Scopus© citazioni
4
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
12
Data di acquisizione
Mar 24, 2024
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