Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector

This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb⁻¹ of proton-proton collision data recorded at a centre-of-mass energy of √s = 13 TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair pr...

Descripción completa

Guardado en:
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: 2020
Materias:
Ciencias Exactas
Física
Jet substructure
Beyond Standard Model
Hadron-Hadron scattering (experiments)
Heavy quark production
Jets
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125059
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125059
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Jet substructure
Beyond Standard Model
Hadron-Hadron scattering (experiments)
Heavy quark production
Jets
spellingShingle Ciencias Exactas
Física
Jet substructure
Beyond Standard Model
Hadron-Hadron scattering (experiments)
Heavy quark production
Jets
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
Jet substructure
Beyond Standard Model
Hadron-Hadron scattering (experiments)
Heavy quark production
Jets
description This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb⁻¹ of proton-proton collision data recorded at a centre-of-mass energy of √s = 13 TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a tt¯ pair with mass above 1.4 TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new Z′ boson in a topcolor-assisted-technicolor model. The Z′ boson masses below 3.9 and 4.7 TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively.
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 tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_short Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_full Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_fullStr Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_sort search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 tev with the atlas detector
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/125059
work_keys_str_mv AT alonsofrancisco searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
AT arduhfranciscoanuar searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
AT dovamariateresa searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
AT hoyajoaquin searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
AT monticellifernandogabriel searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
AT orellanagonzaloenrique searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
AT wahlberghernanpablo searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
AT theatlascollaboration searchforttresonancesinfullyhadronicfinalstatesinppcollisionsats13tevwiththeatlasdetector
bdutipo_str Repositorios
_version_ 1764820449943879680

Ejemplares similares