Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector

A search for nonresonant new phenomena, originating from either contact interactions or large extra spatial dimensions, has been carried out using events with two isolated electrons or muons. These events, produced at the LHC in proton-proton collisions at root √s = 7 TeV, were recorded by the ATLAS...

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Detalles Bibliográficos
Autores principales: Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Exactas
Física
Composite models
Inclusive production with identified leptons, photons, or other nonhadronic particles
Other gauge bosons
Kaluza-Klein excitations
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/135417
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-135417
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
Composite models
Inclusive production with identified leptons, photons, or other nonhadronic particles
Other gauge bosons
Kaluza-Klein excitations
spellingShingle Ciencias Exactas
Física
Composite models
Inclusive production with identified leptons, photons, or other nonhadronic particles
Other gauge bosons
Kaluza-Klein excitations
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
Composite models
Inclusive production with identified leptons, photons, or other nonhadronic particles
Other gauge bosons
Kaluza-Klein excitations
description A search for nonresonant new phenomena, originating from either contact interactions or large extra spatial dimensions, has been carried out using events with two isolated electrons or muons. These events, produced at the LHC in proton-proton collisions at root √s = 7 TeV, were recorded by the ATLAS detector. The data sample, collected throughout 2011, corresponds to an integrated luminosity of 4.9 and 5.0 fb⁻¹ in the e⁺e⁻ and μ⁺μ⁻ channels, respectively. No significant deviations from the Standard Model expectation are observed. Using a Bayesian approach, 95% confidence level lower limits ranging from 9.0 to 13.9 TeV are placed on the energy scale of ℓℓqq contact interactions in the left-left isoscalar model. Lower limits ranging from 2.4 to 3.9 TeV are also set on the string scale in large extra dimension models. After combining these limits with results from a similar search in the diphoton channel, slightly more stringent limits are obtained.
format Articulo
Articulo
author Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Alonso, Francisco
title Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector
title_short Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector
title_full Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector
title_fullStr Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector
title_full_unstemmed Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 TeV with the ATLAS detector
title_sort search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s = 7 tev with the atlas detector
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/135417
work_keys_str_mv AT alonsofrancisco searchforcontactinteractionsandlargeextradimensionsindileptoneventsfromppcollisionsats7tevwiththeatlasdetector
AT anduagaxabiersebastian searchforcontactinteractionsandlargeextradimensionsindileptoneventsfromppcollisionsats7tevwiththeatlasdetector
AT dovamariateresa searchforcontactinteractionsandlargeextradimensionsindileptoneventsfromppcollisionsats7tevwiththeatlasdetector
AT monticellifernandogabriel searchforcontactinteractionsandlargeextradimensionsindileptoneventsfromppcollisionsats7tevwiththeatlasdetector
AT tripianamartinfernando searchforcontactinteractionsandlargeextradimensionsindileptoneventsfromppcollisionsats7tevwiththeatlasdetector
AT theatlascollaboration searchforcontactinteractionsandlargeextradimensionsindileptoneventsfromppcollisionsats7tevwiththeatlasdetector
bdutipo_str Repositorios
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