Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = 8 TeV

A search for heavy Majorana neutrinos in events containing a pair of high-pT leptons of the same charge and high-pT jets is presented. The search uses 20.3 fb−1 of pp collision data collected with the ATLAS detector at the CERN Large Hadron Collider with a centre-of-mass energy of √s = 8TeV. The dat...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79141
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id I19-R120-10915-79141
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
hadron-hadron scattering
majorana neutrinos
ATLAS detector
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
majorana neutrinos
ATLAS detector
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = 8 TeV
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
majorana neutrinos
ATLAS detector
description A search for heavy Majorana neutrinos in events containing a pair of high-pT leptons of the same charge and high-pT jets is presented. The search uses 20.3 fb−1 of pp collision data collected with the ATLAS detector at the CERN Large Hadron Collider with a centre-of-mass energy of √s = 8TeV. The data are found to be consistent with the background-only hypothesis based on the Standard Model expectation. In the context of a Type-I seesaw mechanism, limits are set on the production cross-section times branching ratio for production of heavy Majorana neutrinos in the mass range between 100 and 500 GeV. The limits are subsequently interpreted as limits on the mixing between the heavy Majorana neutrinos and the Standard Model neutrinos. In the context of a left-right symmetric model, limits on the production cross-section times branching ratio are set with respect to the masses of heavy Majorana neutrinos and heavy gauge bosons WR and Z'.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = 8 TeV
title_short Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = 8 TeV
title_full Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = 8 TeV
title_fullStr Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = 8 TeV
title_full_unstemmed Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = 8 TeV
title_sort search for heavy majorana neutrinos with the atlas detector in pp collisions at √s = 8 tev
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/79141
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