Search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 TeV with the ATLAS detector

A search for high-mass dielectron and dimuon resonances in the mass range of 250 GeV to 6 TeV is presented. The data were recorded by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of s=13 TeV during Run 2 of the Large Hadron Collider and correspond to an integrated lumi...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, 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: 2019
Materias:
Física
Resonance
Particle physics
Physics
Luminosity (scattering theory)
Monte carlo method
Atlas (anatomy)
Atlas experiment
Branching fraction
Boson
Large hadron collider
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125533
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125533
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Resonance
Particle physics
Physics
Luminosity (scattering theory)
Monte carlo method
Atlas (anatomy)
Atlas experiment
Branching fraction
Boson
Large hadron collider
spellingShingle Física
Resonance
Particle physics
Physics
Luminosity (scattering theory)
Monte carlo method
Atlas (anatomy)
Atlas experiment
Branching fraction
Boson
Large hadron collider
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 TeV with the ATLAS detector
topic_facet Física
Resonance
Particle physics
Physics
Luminosity (scattering theory)
Monte carlo method
Atlas (anatomy)
Atlas experiment
Branching fraction
Boson
Large hadron collider
description A search for high-mass dielectron and dimuon resonances in the mass range of 250 GeV to 6 TeV is presented. The data were recorded by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of s=13 TeV during Run 2 of the Large Hadron Collider and correspond to an integrated luminosity of 139 fb ⁻¹ . A functional form is fitted to the dilepton invariant-mass distribution to model the contribution from background processes, and a generic signal shape is used to determine the significance of observed deviations from this background estimate. No significant deviation is observed and upper limits are placed at the 95% confidence level on the fiducial cross-section times branching ratio for various resonance width hypotheses. The derived limits are shown to be applicable to spin-0, spin-1 and spin-2 signal hypotheses. For a set of benchmark models, the limits are converted into lower limits on the resonance mass and reach 4.5 TeV for the E 6 -motivated Zψ boson. Also presented are limits on Heavy Vector Triplet model couplings.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 TeV with the ATLAS detector
title_short Search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 TeV with the ATLAS detector
title_full Search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 TeV with the ATLAS detector
title_fullStr Search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 TeV with the ATLAS detector
title_sort search for high-mass dilepton resonances using 139 fb⁻¹ of pp collision data collected at √s = 13 tev with the atlas detector
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/125533
work_keys_str_mv AT alconadaverzinimariajosefina searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT alonsofrancisco searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT arduhfranciscoanuar searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT dovamariateresa searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT hoyajoaquin searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT monticellifernandogabriel searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT orellanagonzaloenrique searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT wahlberghernanpablo searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
AT theatlascollaboration searchforhighmassdileptonresonancesusing139fb1ofppcollisiondatacollectedats13tevwiththeatlasdetector
bdutipo_str Repositorios
_version_ 1764820451822927872

Ejemplares similares