Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 TeV with the ATLAS detector

A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions or large extra spatial dimensions. The LHC 2012 proton–proton collision dataset recorded by the ATLAS detector is used, corresponding to 20 fb−1 at √ s = 8 TeV. Th...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Exactas
Física
dilepton
proton-proton collisions
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78993
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78993
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
dilepton
proton-proton collisions
ATLAS detector
spellingShingle Ciencias Exactas
Física
dilepton
proton-proton collisions
ATLAS detector
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
dilepton
proton-proton collisions
ATLAS detector
description A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions or large extra spatial dimensions. The LHC 2012 proton–proton collision dataset recorded by the ATLAS detector is used, corresponding to 20 fb−1 at √ s = 8 TeV. The dilepton invariant mass spectrum is a discriminating variable in both searches, with the contact interaction search additionally utilizing the dilepton forward-backward asymmetry. No significant deviations from the Standard Model expectation are observed. Lower limits are set on the ℓℓqq contact interaction scale between 15.4 TeVand 26.3 TeV, at the 95%credibility level. For large extra spatial dimensions, lower limits are set on the string scale MS between 3.2 TeV to 5.0 TeV.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 TeV with the ATLAS detector
title_short Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 TeV with the ATLAS detector
title_full Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 TeV with the ATLAS detector
title_fullStr Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 TeV with the ATLAS detector
title_full_unstemmed Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 TeV with the ATLAS detector
title_sort search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √ s = 8 tev with the atlas detector
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/78993
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