Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 TeV with the ATLAS detector

A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139 fb⁻¹ of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large...

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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:
Ciencias Exactas
Física
heavy leptons
Physics
proton–proton collision
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125052
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125052
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
heavy leptons
Physics
proton–proton collision
spellingShingle Ciencias Exactas
Física
heavy leptons
Physics
proton–proton collision
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
heavy leptons
Physics
proton–proton collision
description A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139 fb⁻¹ of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis focuses on the final state with two light leptons (electrons or muons) of different flavour and charge combinations, with at least two jets and large missing transverse momentum. No significant excess over the Standard Model expectation is observed. The results are translated into exclusion limits on heavy-lepton masses, and the observed lower limit on the mass of the type-III seesaw heavy leptons is 790 GeV at 95% confidence level.
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 type-III seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_short Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_full Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_fullStr Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Search for type-III seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 TeV with the ATLAS detector
title_sort search for type-iii seesaw heavy leptons in dilepton final states in pp collisions at √s = 13 tev with the atlas detector
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/125052
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