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

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 experi...

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Detalles Bibliográficos
Autores principales: Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Orellana, Gonzalo Enrique, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Física
Particle physics
Supersymmetry
Physics
Multiplicity (mathematics)
Lepton
Physics beyond the standard model
Muon
Atlas experiment
Pair production
Large hadron collider
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124399
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124399
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Particle physics
Supersymmetry
Physics
Multiplicity (mathematics)
Lepton
Physics beyond the standard model
Muon
Atlas experiment
Pair production
Large hadron collider
spellingShingle Física
Particle physics
Supersymmetry
Physics
Multiplicity (mathematics)
Lepton
Physics beyond the standard model
Muon
Atlas experiment
Pair production
Large hadron collider
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
topic_facet Física
Particle physics
Supersymmetry
Physics
Multiplicity (mathematics)
Lepton
Physics beyond the standard model
Muon
Atlas experiment
Pair production
Large hadron collider
description 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.
format Articulo
Articulo
author Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alonso, Francisco
title Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
title_short Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
title_full Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
title_fullStr Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
title_full_unstemmed Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
title_sort search for phenomena beyond the standard model in events with large b-jet multiplicity using the atlas detector at the lhc
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/124399
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